Merge pull request #2220 from vdemeester/to-gotest.tools

Migrate to gotest.tools :)

libnetwork/datastore/datastore_test.go

@@ -7,7 +7,7 @@ import (
 
 	"github.com/docker/libnetwork/options"
 	_ "github.com/docker/libnetwork/testutils"
-	"github.com/stretchr/testify/assert"
+	"gotest.tools/assert"
 )
 
 var dummyKey = "dummy"
@@ -68,12 +68,12 @@ func TestKVObjectFlatKey(t *testing.T) {
 func TestAtomicKVObjectFlatKey(t *testing.T) {
 	store := NewTestDataStore()
 	expected := dummyKVObject("1111", true)
-	assert.False(t, expected.Exists())
+	assert.Check(t, !expected.Exists())
 	err := store.PutObjectAtomic(expected)
 	if err != nil {
 		t.Fatal(err)
 	}
-	assert.True(t, expected.Exists())
+	assert.Check(t, expected.Exists())
 
 	// PutObjectAtomic automatically sets the Index again. Hence the following must pass.
 
@@ -104,7 +104,7 @@ func TestAtomicKVObjectFlatKey(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	assert.True(t, newObj.Exists())
+	assert.Check(t, newObj.Exists())
 	err = store.PutObjectAtomic(&n)
 	if err != nil {
 		t.Fatal(err)

libnetwork/drivers/overlay/ovmanager/ovmanager_test.go

@@ -11,8 +11,8 @@ import (
 	"github.com/docker/libnetwork/netlabel"
 	_ "github.com/docker/libnetwork/testutils"
 	"github.com/docker/libnetwork/types"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
+	"gotest.tools/assert"
+	is "gotest.tools/assert/cmp"
 )
 
 func newDriver(t *testing.T) *driver {
@@ -21,7 +21,7 @@ func newDriver(t *testing.T) *driver {
 	}
 
 	vxlanIdm, err := idm.New(nil, "vxlan-id", vxlanIDStart, vxlanIDEnd)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 
 	d.vxlanIdm = vxlanIdm
 	return d
@@ -29,7 +29,7 @@ func newDriver(t *testing.T) *driver {
 
 func parseCIDR(t *testing.T, ipnet string) *net.IPNet {
 	subnet, err := types.ParseCIDR(ipnet)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	return subnet
 }
 
@@ -46,14 +46,14 @@ func TestNetworkAllocateFree(t *testing.T) {
 	}
 
 	vals, err := d.NetworkAllocate("testnetwork", nil, ipamData, nil)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 
 	vxlanIDs, ok := vals[netlabel.OverlayVxlanIDList]
-	assert.Equal(t, true, ok)
-	assert.Equal(t, 2, len(strings.Split(vxlanIDs, ",")))
+	assert.Check(t, is.Equal(true, ok))
+	assert.Check(t, is.Len(strings.Split(vxlanIDs, ","), 2))
 
 	err = d.NetworkFree("testnetwork")
-	require.NoError(t, err)
+	assert.NilError(t, err)
 }
 
 func TestNetworkAllocateUserDefinedVNIs(t *testing.T) {
@@ -73,16 +73,16 @@ func TestNetworkAllocateUserDefinedVNIs(t *testing.T) {
 	options[netlabel.OverlayVxlanIDList] = fmt.Sprintf("%d,%d,%d", vxlanIDStart, vxlanIDStart+1, vxlanIDStart+2)
 
 	vals, err := d.NetworkAllocate("testnetwork", options, ipamData, nil)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 
 	vxlanIDs, ok := vals[netlabel.OverlayVxlanIDList]
-	assert.Equal(t, true, ok)
+	assert.Check(t, is.Equal(true, ok))
 
 	// We should only get exactly the same number of vnis as
 	// subnets. No more, no less, even if we passed more vnis.
-	assert.Equal(t, 2, len(strings.Split(vxlanIDs, ",")))
-	assert.Equal(t, fmt.Sprintf("%d,%d", vxlanIDStart, vxlanIDStart+1), vxlanIDs)
+	assert.Check(t, is.Len(strings.Split(vxlanIDs, ","), 2))
+	assert.Check(t, is.Equal(fmt.Sprintf("%d,%d", vxlanIDStart, vxlanIDStart+1), vxlanIDs))
 
 	err = d.NetworkFree("testnetwork")
-	require.NoError(t, err)
+	assert.NilError(t, err)
 }

libnetwork/drvregistry/drvregistry_test.go

@@ -11,7 +11,8 @@ import (
 	builtinIpam "github.com/docker/libnetwork/ipams/builtin"
 	nullIpam "github.com/docker/libnetwork/ipams/null"
 	remoteIpam "github.com/docker/libnetwork/ipams/remote"
-	"github.com/stretchr/testify/assert"
+	"gotest.tools/assert"
+	is "gotest.tools/assert/cmp"
 
 	// this takes care of the incontainer flag
 	_ "github.com/docker/libnetwork/testutils"
@@ -128,46 +129,46 @@ func TestAddDriver(t *testing.T) {
 	reg := getNew(t)
 
 	err := reg.AddDriver(mockDriverName, mockDriverInit, nil)
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 }
 
 func TestAddDuplicateDriver(t *testing.T) {
 	reg := getNew(t)
 
 	err := reg.AddDriver(mockDriverName, mockDriverInit, nil)
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	// Try adding the same driver
 	err = reg.AddDriver(mockDriverName, mockDriverInit, nil)
-	assert.Error(t, err)
+	assert.Check(t, is.ErrorContains(err, ""))
 }
 
 func TestIPAMDefaultAddressSpaces(t *testing.T) {
 	reg := getNew(t)
 
 	as1, as2, err := reg.IPAMDefaultAddressSpaces("default")
-	assert.NoError(t, err)
-	assert.NotEqual(t, as1, "")
-	assert.NotEqual(t, as2, "")
+	assert.NilError(t, err)
+	assert.Check(t, as1 != "")
+	assert.Check(t, as2 != "")
 }
 
 func TestDriver(t *testing.T) {
 	reg := getNew(t)
 
 	err := reg.AddDriver(mockDriverName, mockDriverInit, nil)
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	d, cap := reg.Driver(mockDriverName)
-	assert.NotEqual(t, d, nil)
-	assert.NotEqual(t, cap, nil)
+	assert.Check(t, d != nil)
+	assert.Check(t, cap != nil)
 }
 
 func TestIPAM(t *testing.T) {
 	reg := getNew(t)
 
 	i, cap := reg.IPAM("default")
-	assert.NotEqual(t, i, nil)
-	assert.NotEqual(t, cap, nil)
+	assert.Check(t, i != nil)
+	assert.Check(t, cap != nil)
 }
 
 func TestWalkIPAMs(t *testing.T) {
@@ -180,14 +181,14 @@ func TestWalkIPAMs(t *testing.T) {
 	})
 
 	sort.Strings(ipams)
-	assert.Equal(t, ipams, []string{"default", "null"})
+	assert.Check(t, is.DeepEqual(ipams, []string{"default", "null"}))
 }
 
 func TestWalkDrivers(t *testing.T) {
 	reg := getNew(t)
 
 	err := reg.AddDriver(mockDriverName, mockDriverInit, nil)
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	var driverName string
 	reg.WalkDrivers(func(name string, driver driverapi.Driver, capability driverapi.Capability) bool {
@@ -195,5 +196,5 @@ func TestWalkDrivers(t *testing.T) {
 		return false
 	})
 
-	assert.Equal(t, driverName, mockDriverName)
+	assert.Check(t, is.Equal(driverName, mockDriverName))
 }

libnetwork/ipam/allocator_test.go

@@ -20,7 +20,8 @@ import (
 	"github.com/docker/libnetwork/ipamutils"
 	_ "github.com/docker/libnetwork/testutils"
 	"github.com/docker/libnetwork/types"
-	"github.com/stretchr/testify/assert"
+	"gotest.tools/assert"
+	is "gotest.tools/assert/cmp"
 )
 
 const (
@@ -287,23 +288,23 @@ func TestAddSubnets(t *testing.T) {
 func TestDoublePoolRelease(t *testing.T) {
 	for _, store := range []bool{false, true} {
 		a, err := getAllocator(store)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 
 		pid0, _, _, err := a.RequestPool(localAddressSpace, "10.0.0.0/8", "", nil, false)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 
 		err = a.ReleasePool(pid0)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 
 		err = a.ReleasePool(pid0)
-		assert.Error(t, err)
+		assert.Check(t, is.ErrorContains(err, ""))
 	}
 }
 
 func TestAddReleasePoolID(t *testing.T) {
 	for _, store := range []bool{false, true} {
 		a, err := getAllocator(store)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 
 		var k0, k1 SubnetKey
 		aSpace, err := a.getAddrSpace(localAddressSpace)
@@ -437,7 +438,7 @@ func TestAddReleasePoolID(t *testing.T) {
 func TestPredefinedPool(t *testing.T) {
 	for _, store := range []bool{false, true} {
 		a, err := getAllocator(store)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 
 		if _, err := a.getPredefinedPool("blue", false); err == nil {
 			t.Fatal("Expected failure for non default addr space")
@@ -465,7 +466,7 @@ func TestPredefinedPool(t *testing.T) {
 func TestRemoveSubnet(t *testing.T) {
 	for _, store := range []bool{false, true} {
 		a, err := getAllocator(store)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 
 		a.addrSpaces["splane"] = &addrSpace{
 			id:      dsConfigKey + "/" + "splane",
@@ -509,7 +510,7 @@ func TestRemoveSubnet(t *testing.T) {
 func TestGetSameAddress(t *testing.T) {
 	for _, store := range []bool{false, true} {
 		a, err := getAllocator(store)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 
 		a.addrSpaces["giallo"] = &addrSpace{
 			id:      dsConfigKey + "/" + "giallo",
@@ -540,7 +541,7 @@ func TestGetSameAddress(t *testing.T) {
 func TestPoolAllocationReuse(t *testing.T) {
 	for _, store := range []bool{false, true} {
 		a, err := getAllocator(store)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 
 		// First get all pools until they are exhausted to
 		pList := []string{}
@@ -579,7 +580,7 @@ func TestPoolAllocationReuse(t *testing.T) {
 func TestGetAddressSubPoolEqualPool(t *testing.T) {
 	for _, store := range []bool{false, true} {
 		a, err := getAllocator(store)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 
 		// Requesting a subpool of same size of the master pool should not cause any problem on ip allocation
 		pid, _, _, err := a.RequestPool(localAddressSpace, "172.18.0.0/16", "172.18.0.0/16", nil, false)
@@ -597,7 +598,7 @@ func TestGetAddressSubPoolEqualPool(t *testing.T) {
 func TestRequestReleaseAddressFromSubPool(t *testing.T) {
 	for _, store := range []bool{false, true} {
 		a, err := getAllocator(store)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 
 		a.addrSpaces["rosso"] = &addrSpace{
 			id:      dsConfigKey + "/" + "rosso",
@@ -730,7 +731,7 @@ func TestSerializeRequestReleaseAddressFromSubPool(t *testing.T) {
 		ipamapi.AllocSerialPrefix: "true"}
 	for _, store := range []bool{false, true} {
 		a, err := getAllocator(store)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 
 		a.addrSpaces["rosso"] = &addrSpace{
 			id:      dsConfigKey + "/" + "rosso",
@@ -880,7 +881,7 @@ func TestRequestSyntaxCheck(t *testing.T) {
 
 	for _, store := range []bool{false, true} {
 		a, err := getAllocator(store)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 
 		a.addrSpaces[as] = &addrSpace{
 			id:      dsConfigKey + "/" + as,
@@ -1036,20 +1037,20 @@ func TestOverlappingRequests(t *testing.T) {
 	for _, store := range []bool{false, true} {
 		for _, tc := range input {
 			a, err := getAllocator(store)
-			assert.NoError(t, err)
+			assert.NilError(t, err)
 
 			// Set up some existing allocations.  This should always succeed.
 			for _, env := range tc.environment {
 				_, _, _, err = a.RequestPool(localAddressSpace, env, "", nil, false)
-				assert.NoError(t, err)
+				assert.NilError(t, err)
 			}
 
 			// Make the test allocation.
 			_, _, _, err = a.RequestPool(localAddressSpace, tc.subnet, "", nil, false)
 			if tc.ok {
-				assert.NoError(t, err)
+				assert.NilError(t, err)
 			} else {
-				assert.Error(t, err)
+				assert.Check(t, is.ErrorContains(err, ""))
 			}
 		}
 	}
@@ -1062,7 +1063,7 @@ func TestRelease(t *testing.T) {
 
 	for _, store := range []bool{false, true} {
 		a, err := getAllocator(store)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 
 		pid, _, _, err := a.RequestPool(localAddressSpace, subnet, "", nil, false)
 		if err != nil {
@@ -1170,7 +1171,7 @@ func assertNRequests(t *testing.T, subnet string, numReq int, lastExpectedIP str
 	lastIP := net.ParseIP(lastExpectedIP)
 	for _, store := range []bool{false, true} {
 		a, err := getAllocator(store)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 
 		pid, _, _, err := a.RequestPool(localAddressSpace, subnet, "", nil, false)
 		if err != nil {
@@ -1232,7 +1233,7 @@ func TestAllocateRandomDeallocate(t *testing.T) {
 
 func testAllocateRandomDeallocate(t *testing.T, pool, subPool string, num int, store bool) {
 	ds, err := randomLocalStore(store)
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	a, err := NewAllocator(ds, nil)
 	if err != nil {

libnetwork/ipam/parallel_test.go

@@ -12,8 +12,9 @@ import (
 	"time"
 
 	"github.com/docker/libnetwork/ipamapi"
-	"github.com/stretchr/testify/assert"
 	"golang.org/x/sync/semaphore"
+	"gotest.tools/assert"
+	is "gotest.tools/assert/cmp"
 )
 
 const (
@@ -217,7 +218,7 @@ func allocate(t *testing.T, tctx *testContext, parallel int64) {
 		tctx.ipMap[ip.String()] = true
 	}
 
-	assert.Len(t, tctx.ipList, tctx.maxIP)
+	assert.Check(t, is.Len(tctx.ipList, tctx.maxIP))
 	if len(tctx.ipList) != tctx.maxIP {
 		t.Fatal("missmatch number allocation")
 	}
@@ -281,12 +282,12 @@ func release(t *testing.T, tctx *testContext, mode releaseMode, parallel int64)
 
 		// check if it is really free
 		_, _, err := tctx.a.RequestAddress(tctx.pid, ip.IP, nil)
-		assert.NoError(t, err, "ip %v not properly released", ip)
+		assert.Check(t, err, "ip %v not properly released", ip)
 		if err != nil {
 			t.Fatalf("ip %v not properly released, error:%v", ip, err)
 		}
 		err = tctx.a.ReleaseAddress(tctx.pid, ip.IP)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 
 		if there, ok := tctx.ipMap[ip.String()]; !ok || !there {
 			t.Fatalf("ip %v got double deallocated", ip)
@@ -300,5 +301,5 @@ func release(t *testing.T, tctx *testContext, mode releaseMode, parallel int64)
 		}
 	}
 
-	assert.Len(t, tctx.ipList, tctx.maxIP-length)
+	assert.Check(t, is.Len(tctx.ipList, tctx.maxIP-length))
 }

libnetwork/ipamutils/utils_test.go

@@ -6,7 +6,8 @@ import (
 	"testing"
 
 	_ "github.com/docker/libnetwork/testutils"
-	"github.com/stretchr/testify/assert"
+	"gotest.tools/assert"
+	is "gotest.tools/assert/cmp"
 )
 
 func initBroadPredefinedNetworks() []*net.IPNet {
@@ -54,11 +55,11 @@ func TestDefaultNetwork(t *testing.T) {
 	}
 	for _, nw := range PredefinedBroadNetworks {
 		_, ok := m[nw.String()]
-		assert.True(t, ok)
+		assert.Check(t, ok)
 		delete(m, nw.String())
 	}
 
-	assert.Len(t, m, 0)
+	assert.Check(t, is.Len(m, 0))
 
 	originalGranularNets := initGranularPredefinedNetworks()
 
@@ -68,11 +69,11 @@ func TestDefaultNetwork(t *testing.T) {
 	}
 	for _, nw := range PredefinedGranularNetworks {
 		_, ok := m[nw.String()]
-		assert.True(t, ok)
+		assert.Check(t, ok)
 		delete(m, nw.String())
 	}
 
-	assert.Len(t, m, 0)
+	assert.Check(t, is.Len(m, 0))
 }
 
 func TestInitAddressPools(t *testing.T) {
@@ -80,11 +81,11 @@ func TestInitAddressPools(t *testing.T) {
 	InitNetworks([]*NetworkToSplit{{"172.80.0.0/16", 24}, {"172.90.0.0/16", 24}})
 
 	// Check for Random IPAddresses in PredefinedBroadNetworks  ex: first , last and middle
-	assert.Len(t, PredefinedBroadNetworks, 512, "Failed to find PredefinedBroadNetworks")
-	assert.Equal(t, PredefinedBroadNetworks[0].String(), "172.80.0.0/24")
-	assert.Equal(t, PredefinedBroadNetworks[127].String(), "172.80.127.0/24")
-	assert.Equal(t, PredefinedBroadNetworks[255].String(), "172.80.255.0/24")
-	assert.Equal(t, PredefinedBroadNetworks[256].String(), "172.90.0.0/24")
-	assert.Equal(t, PredefinedBroadNetworks[383].String(), "172.90.127.0/24")
-	assert.Equal(t, PredefinedBroadNetworks[511].String(), "172.90.255.0/24")
+	assert.Check(t, is.Len(PredefinedBroadNetworks, 512), "Failed to find PredefinedBroadNetworks")
+	assert.Check(t, is.Equal(PredefinedBroadNetworks[0].String(), "172.80.0.0/24"))
+	assert.Check(t, is.Equal(PredefinedBroadNetworks[127].String(), "172.80.127.0/24"))
+	assert.Check(t, is.Equal(PredefinedBroadNetworks[255].String(), "172.80.255.0/24"))
+	assert.Check(t, is.Equal(PredefinedBroadNetworks[256].String(), "172.90.0.0/24"))
+	assert.Check(t, is.Equal(PredefinedBroadNetworks[383].String(), "172.90.127.0/24"))
+	assert.Check(t, is.Equal(PredefinedBroadNetworks[511].String(), "172.90.255.0/24"))
 }

libnetwork/ipvs/ipvs_test.go

@@ -8,10 +8,10 @@ import (
 	"testing"
 
 	"github.com/docker/libnetwork/testutils"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
 	"github.com/vishvananda/netlink"
 	"github.com/vishvananda/netlink/nl"
+	"gotest.tools/assert"
+	is "gotest.tools/assert/cmp"
 )
 
 var (
@@ -58,7 +58,7 @@ func checkDestination(t *testing.T, i *Handle, s *Service, d *Destination, check
 	var dstFound bool
 
 	dstArray, err := i.GetDestinations(s)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 
 	for _, dst := range dstArray {
 		if dst.Address.Equal(d.Address) && dst.Port == d.Port && lookupFwMethod(dst.ConnectionFlags) == lookupFwMethod(d.ConnectionFlags) {
@@ -84,7 +84,7 @@ func checkDestination(t *testing.T, i *Handle, s *Service, d *Destination, check
 func checkService(t *testing.T, i *Handle, s *Service, checkPresent bool) {
 
 	svcArray, err := i.GetServices()
-	require.NoError(t, err)
+	assert.NilError(t, err)
 
 	var svcFound bool
 
@@ -116,8 +116,8 @@ func TestGetFamily(t *testing.T) {
 	}
 
 	id, err := getIPVSFamily()
-	require.NoError(t, err)
-	assert.NotEqual(t, 0, id)
+	assert.NilError(t, err)
+	assert.Check(t, 0 != id)
 }
 
 func TestService(t *testing.T) {
@@ -128,7 +128,7 @@ func TestService(t *testing.T) {
 	defer testutils.SetupTestOSContext(t)()
 
 	i, err := New("")
-	require.NoError(t, err)
+	assert.NilError(t, err)
 
 	for _, protocol := range protocols {
 		for _, schedMethod := range schedMethods {
@@ -153,7 +153,7 @@ func TestService(t *testing.T) {
 			}
 
 			err := i.NewService(&s)
-			assert.NoError(t, err)
+			assert.NilError(t, err)
 			checkService(t, i, &s, true)
 			for _, updateSchedMethod := range schedMethods {
 				if updateSchedMethod == schedMethod {
@@ -162,18 +162,18 @@ func TestService(t *testing.T) {
 
 				s.SchedName = updateSchedMethod
 				err = i.UpdateService(&s)
-				assert.NoError(t, err)
+				assert.NilError(t, err)
 				checkService(t, i, &s, true)
 
 				scopy, err := i.GetService(&s)
-				assert.NoError(t, err)
-				assert.Equal(t, (*scopy).Address.String(), s.Address.String())
-				assert.Equal(t, (*scopy).Port, s.Port)
-				assert.Equal(t, (*scopy).Protocol, s.Protocol)
+				assert.NilError(t, err)
+				assert.Check(t, is.Equal((*scopy).Address.String(), s.Address.String()))
+				assert.Check(t, is.Equal((*scopy).Port, s.Port))
+				assert.Check(t, is.Equal((*scopy).Protocol, s.Protocol))
 			}
 
 			err = i.DelService(&s)
-			assert.NoError(t, err)
+			assert.NilError(t, err)
 			checkService(t, i, &s, false)
 		}
 	}
@@ -200,16 +200,16 @@ func TestService(t *testing.T) {
 	for _, svc := range svcs {
 		if !i.IsServicePresent(&svc) {
 			err = i.NewService(&svc)
-			assert.NoError(t, err)
+			assert.NilError(t, err)
 			checkService(t, i, &svc, true)
 		} else {
 			t.Errorf("svc: %v exists", svc)
 		}
 	}
 	err = i.Flush()
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 	got, err := i.GetServices()
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 	if len(got) != 0 {
 		t.Errorf("Unexpected services after flush")
 	}
@@ -227,19 +227,19 @@ func createDummyInterface(t *testing.T) {
 	}
 
 	err := netlink.LinkAdd(dummy)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 
 	dummyLink, err := netlink.LinkByName("dummy")
-	require.NoError(t, err)
+	assert.NilError(t, err)
 
 	ip, ipNet, err := net.ParseCIDR("10.1.1.1/24")
-	require.NoError(t, err)
+	assert.NilError(t, err)
 
 	ipNet.IP = ip
 
 	ipAddr := &netlink.Addr{IPNet: ipNet, Label: ""}
 	err = netlink.AddrAdd(dummyLink, ipAddr)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 }
 
 func TestDestination(t *testing.T) {
@@ -247,7 +247,7 @@ func TestDestination(t *testing.T) {
 
 	createDummyInterface(t)
 	i, err := New("")
-	require.NoError(t, err)
+	assert.NilError(t, err)
 
 	for _, protocol := range protocols {
 
@@ -271,7 +271,7 @@ func TestDestination(t *testing.T) {
 		}
 
 		err := i.NewService(&s)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 		checkService(t, i, &s, true)
 
 		s.SchedName = ""
@@ -285,7 +285,7 @@ func TestDestination(t *testing.T) {
 			}
 
 			err := i.NewDestination(&s, &d1)
-			assert.NoError(t, err)
+			assert.NilError(t, err)
 			checkDestination(t, i, &s, &d1, true)
 			d2 := Destination{
 				AddressFamily:   nl.FAMILY_V4,
@@ -296,7 +296,7 @@ func TestDestination(t *testing.T) {
 			}
 
 			err = i.NewDestination(&s, &d2)
-			assert.NoError(t, err)
+			assert.NilError(t, err)
 			checkDestination(t, i, &s, &d2, true)
 
 			d3 := Destination{
@@ -308,7 +308,7 @@ func TestDestination(t *testing.T) {
 			}
 
 			err = i.NewDestination(&s, &d3)
-			assert.NoError(t, err)
+			assert.NilError(t, err)
 			checkDestination(t, i, &s, &d3, true)
 
 			for _, updateFwdMethod := range fwdMethods {
@@ -317,26 +317,26 @@ func TestDestination(t *testing.T) {
 				}
 				d1.ConnectionFlags = updateFwdMethod
 				err = i.UpdateDestination(&s, &d1)
-				assert.NoError(t, err)
+				assert.NilError(t, err)
 				checkDestination(t, i, &s, &d1, true)
 
 				d2.ConnectionFlags = updateFwdMethod
 				err = i.UpdateDestination(&s, &d2)
-				assert.NoError(t, err)
+				assert.NilError(t, err)
 				checkDestination(t, i, &s, &d2, true)
 
 				d3.ConnectionFlags = updateFwdMethod
 				err = i.UpdateDestination(&s, &d3)
-				assert.NoError(t, err)
+				assert.NilError(t, err)
 				checkDestination(t, i, &s, &d3, true)
 			}
 
 			err = i.DelDestination(&s, &d1)
-			assert.NoError(t, err)
+			assert.NilError(t, err)
 			err = i.DelDestination(&s, &d2)
-			assert.NoError(t, err)
+			assert.NilError(t, err)
 			err = i.DelDestination(&s, &d3)
-			assert.NoError(t, err)
+			assert.NilError(t, err)
 			checkDestination(t, i, &s, &d3, false)
 
 		}

libnetwork/networkdb/networkdb_test.go

@@ -15,8 +15,8 @@ import (
 	"github.com/docker/go-events"
 	"github.com/hashicorp/memberlist"
 	"github.com/sirupsen/logrus"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
+	"gotest.tools/assert"
+	is "gotest.tools/assert/cmp"
 
 	// this takes care of the incontainer flag
 	_ "github.com/docker/libnetwork/testutils"
@@ -32,7 +32,7 @@ func TestMain(m *testing.M) {
 
 func launchNode(t *testing.T, conf Config) *NetworkDB {
 	db, err := New(&conf)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	return db
 }
 
@@ -45,7 +45,7 @@ func createNetworkDBInstances(t *testing.T, num int, namePrefix string, conf *Co
 		localConfig.BindPort = int(atomic.AddInt32(&dbPort, 1))
 		db := launchNode(t, localConfig)
 		if i != 0 {
-			assert.NoError(t, db.Join([]string{fmt.Sprintf("localhost:%d", db.config.BindPort-1)}))
+			assert.Check(t, db.Join([]string{fmt.Sprintf("localhost:%d", db.config.BindPort-1)}))
 		}
 
 		dbs = append(dbs, db)
@@ -85,7 +85,7 @@ func (db *NetworkDB) verifyNodeExistence(t *testing.T, node string, present bool
 		time.Sleep(50 * time.Millisecond)
 	}
 
-	assert.Fail(t, fmt.Sprintf("%v(%v): Node existence verification for node %s failed", db.config.Hostname, db.config.NodeID, node))
+	t.Error(fmt.Sprintf("%v(%v): Node existence verification for node %s failed", db.config.Hostname, db.config.NodeID, node))
 }
 
 func (db *NetworkDB) verifyNetworkExistence(t *testing.T, node string, id string, present bool) {
@@ -109,7 +109,7 @@ func (db *NetworkDB) verifyNetworkExistence(t *testing.T, node string, id string
 		time.Sleep(50 * time.Millisecond)
 	}
 
-	assert.Fail(t, "Network existence verification failed")
+	t.Error("Network existence verification failed")
 }
 
 func (db *NetworkDB) verifyEntryExistence(t *testing.T, tname, nid, key, value string, present bool) {
@@ -133,28 +133,28 @@ func (db *NetworkDB) verifyEntryExistence(t *testing.T, tname, nid, key, value s
 		time.Sleep(50 * time.Millisecond)
 	}
 
-	assert.Fail(t, fmt.Sprintf("Entry existence verification test failed for %v(%v)", db.config.Hostname, db.config.NodeID))
+	t.Error(fmt.Sprintf("Entry existence verification test failed for %v(%v)", db.config.Hostname, db.config.NodeID))
 }
 
 func testWatch(t *testing.T, ch chan events.Event, ev interface{}, tname, nid, key, value string) {
 	select {
 	case rcvdEv := <-ch:
-		assert.Equal(t, fmt.Sprintf("%T", rcvdEv), fmt.Sprintf("%T", ev))
+		assert.Check(t, is.Equal(fmt.Sprintf("%T", rcvdEv), fmt.Sprintf("%T", ev)))
 		switch rcvdEv.(type) {
 		case CreateEvent:
-			assert.Equal(t, tname, rcvdEv.(CreateEvent).Table)
-			assert.Equal(t, nid, rcvdEv.(CreateEvent).NetworkID)
-			assert.Equal(t, key, rcvdEv.(CreateEvent).Key)
-			assert.Equal(t, value, string(rcvdEv.(CreateEvent).Value))
+			assert.Check(t, is.Equal(tname, rcvdEv.(CreateEvent).Table))
+			assert.Check(t, is.Equal(nid, rcvdEv.(CreateEvent).NetworkID))
+			assert.Check(t, is.Equal(key, rcvdEv.(CreateEvent).Key))
+			assert.Check(t, is.Equal(value, string(rcvdEv.(CreateEvent).Value)))
 		case UpdateEvent:
-			assert.Equal(t, tname, rcvdEv.(UpdateEvent).Table)
-			assert.Equal(t, nid, rcvdEv.(UpdateEvent).NetworkID)
-			assert.Equal(t, key, rcvdEv.(UpdateEvent).Key)
-			assert.Equal(t, value, string(rcvdEv.(UpdateEvent).Value))
+			assert.Check(t, is.Equal(tname, rcvdEv.(UpdateEvent).Table))
+			assert.Check(t, is.Equal(nid, rcvdEv.(UpdateEvent).NetworkID))
+			assert.Check(t, is.Equal(key, rcvdEv.(UpdateEvent).Key))
+			assert.Check(t, is.Equal(value, string(rcvdEv.(UpdateEvent).Value)))
 		case DeleteEvent:
-			assert.Equal(t, tname, rcvdEv.(DeleteEvent).Table)
-			assert.Equal(t, nid, rcvdEv.(DeleteEvent).NetworkID)
-			assert.Equal(t, key, rcvdEv.(DeleteEvent).Key)
+			assert.Check(t, is.Equal(tname, rcvdEv.(DeleteEvent).Table))
+			assert.Check(t, is.Equal(nid, rcvdEv.(DeleteEvent).NetworkID))
+			assert.Check(t, is.Equal(key, rcvdEv.(DeleteEvent).Key))
 		}
 	case <-time.After(time.Second):
 		t.Fail()
@@ -171,12 +171,12 @@ func TestNetworkDBJoinLeaveNetwork(t *testing.T) {
 	dbs := createNetworkDBInstances(t, 2, "node", DefaultConfig())
 
 	err := dbs[0].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	dbs[1].verifyNetworkExistence(t, dbs[0].config.NodeID, "network1", true)
 
 	err = dbs[0].LeaveNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	dbs[1].verifyNetworkExistence(t, dbs[0].config.NodeID, "network1", false)
 	closeNetworkDBInstances(dbs)
@@ -188,12 +188,12 @@ func TestNetworkDBJoinLeaveNetworks(t *testing.T) {
 	n := 10
 	for i := 1; i <= n; i++ {
 		err := dbs[0].JoinNetwork(fmt.Sprintf("network0%d", i))
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 
 	for i := 1; i <= n; i++ {
 		err := dbs[1].JoinNetwork(fmt.Sprintf("network1%d", i))
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 
 	for i := 1; i <= n; i++ {
@@ -206,12 +206,12 @@ func TestNetworkDBJoinLeaveNetworks(t *testing.T) {
 
 	for i := 1; i <= n; i++ {
 		err := dbs[0].LeaveNetwork(fmt.Sprintf("network0%d", i))
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 
 	for i := 1; i <= n; i++ {
 		err := dbs[1].LeaveNetwork(fmt.Sprintf("network1%d", i))
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 
 	for i := 1; i <= n; i++ {
@@ -229,26 +229,26 @@ func TestNetworkDBCRUDTableEntry(t *testing.T) {
 	dbs := createNetworkDBInstances(t, 3, "node", DefaultConfig())
 
 	err := dbs[0].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	dbs[1].verifyNetworkExistence(t, dbs[0].config.NodeID, "network1", true)
 
 	err = dbs[1].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	err = dbs[0].CreateEntry("test_table", "network1", "test_key", []byte("test_value"))
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	dbs[1].verifyEntryExistence(t, "test_table", "network1", "test_key", "test_value", true)
 	dbs[2].verifyEntryExistence(t, "test_table", "network1", "test_key", "test_value", false)
 
 	err = dbs[0].UpdateEntry("test_table", "network1", "test_key", []byte("test_updated_value"))
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	dbs[1].verifyEntryExistence(t, "test_table", "network1", "test_key", "test_updated_value", true)
 
 	err = dbs[0].DeleteEntry("test_table", "network1", "test_key")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	dbs[1].verifyEntryExistence(t, "test_table", "network1", "test_key", "", false)
 
@@ -259,65 +259,65 @@ func TestNetworkDBCRUDTableEntries(t *testing.T) {
 	dbs := createNetworkDBInstances(t, 2, "node", DefaultConfig())
 
 	err := dbs[0].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	dbs[1].verifyNetworkExistence(t, dbs[0].config.NodeID, "network1", true)
 
 	err = dbs[1].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	n := 10
 	for i := 1; i <= n; i++ {
 		err = dbs[0].CreateEntry("test_table", "network1",
 			fmt.Sprintf("test_key0%d", i),
 			[]byte(fmt.Sprintf("test_value0%d", i)))
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 
 	for i := 1; i <= n; i++ {
 		err = dbs[1].CreateEntry("test_table", "network1",
 			fmt.Sprintf("test_key1%d", i),
 			[]byte(fmt.Sprintf("test_value1%d", i)))
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 
 	for i := 1; i <= n; i++ {
 		dbs[0].verifyEntryExistence(t, "test_table", "network1",
 			fmt.Sprintf("test_key1%d", i),
 			fmt.Sprintf("test_value1%d", i), true)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 
 	for i := 1; i <= n; i++ {
 		dbs[1].verifyEntryExistence(t, "test_table", "network1",
 			fmt.Sprintf("test_key0%d", i),
 			fmt.Sprintf("test_value0%d", i), true)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 
 	// Verify deletes
 	for i := 1; i <= n; i++ {
 		err = dbs[0].DeleteEntry("test_table", "network1",
 			fmt.Sprintf("test_key0%d", i))
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 
 	for i := 1; i <= n; i++ {
 		err = dbs[1].DeleteEntry("test_table", "network1",
 			fmt.Sprintf("test_key1%d", i))
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 
 	for i := 1; i <= n; i++ {
 		dbs[0].verifyEntryExistence(t, "test_table", "network1",
 			fmt.Sprintf("test_key1%d", i), "", false)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 
 	for i := 1; i <= n; i++ {
 		dbs[1].verifyEntryExistence(t, "test_table", "network1",
 			fmt.Sprintf("test_key0%d", i), "", false)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 
 	closeNetworkDBInstances(dbs)
@@ -327,13 +327,13 @@ func TestNetworkDBNodeLeave(t *testing.T) {
 	dbs := createNetworkDBInstances(t, 2, "node", DefaultConfig())
 
 	err := dbs[0].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	err = dbs[1].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	err = dbs[0].CreateEntry("test_table", "network1", "test_key", []byte("test_value"))
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	dbs[1].verifyEntryExistence(t, "test_table", "network1", "test_key", "test_value", true)
 
@@ -345,25 +345,25 @@ func TestNetworkDBNodeLeave(t *testing.T) {
 func TestNetworkDBWatch(t *testing.T) {
 	dbs := createNetworkDBInstances(t, 2, "node", DefaultConfig())
 	err := dbs[0].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	err = dbs[1].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	ch, cancel := dbs[1].Watch("", "", "")
 
 	err = dbs[0].CreateEntry("test_table", "network1", "test_key", []byte("test_value"))
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	testWatch(t, ch.C, CreateEvent{}, "test_table", "network1", "test_key", "test_value")
 
 	err = dbs[0].UpdateEntry("test_table", "network1", "test_key", []byte("test_updated_value"))
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	testWatch(t, ch.C, UpdateEvent{}, "test_table", "network1", "test_key", "test_updated_value")
 
 	err = dbs[0].DeleteEntry("test_table", "network1", "test_key")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	testWatch(t, ch.C, DeleteEvent{}, "test_table", "network1", "test_key", "")
 
@@ -375,7 +375,7 @@ func TestNetworkDBBulkSync(t *testing.T) {
 	dbs := createNetworkDBInstances(t, 2, "node", DefaultConfig())
 
 	err := dbs[0].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	dbs[1].verifyNetworkExistence(t, dbs[0].config.NodeID, "network1", true)
 
@@ -384,11 +384,11 @@ func TestNetworkDBBulkSync(t *testing.T) {
 		err = dbs[0].CreateEntry("test_table", "network1",
 			fmt.Sprintf("test_key0%d", i),
 			[]byte(fmt.Sprintf("test_value0%d", i)))
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 
 	err = dbs[1].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	dbs[0].verifyNetworkExistence(t, dbs[1].config.NodeID, "network1", true)
 
@@ -396,7 +396,7 @@ func TestNetworkDBBulkSync(t *testing.T) {
 		dbs[1].verifyEntryExistence(t, "test_table", "network1",
 			fmt.Sprintf("test_key0%d", i),
 			fmt.Sprintf("test_value0%d", i), true)
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 
 	closeNetworkDBInstances(dbs)
@@ -419,7 +419,7 @@ func TestNetworkDBCRUDMediumCluster(t *testing.T) {
 
 	for i := 0; i < n; i++ {
 		err := dbs[i].JoinNetwork("network1")
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 
 	for i := 0; i < n; i++ {
@@ -429,21 +429,21 @@ func TestNetworkDBCRUDMediumCluster(t *testing.T) {
 	}
 
 	err := dbs[0].CreateEntry("test_table", "network1", "test_key", []byte("test_value"))
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	for i := 1; i < n; i++ {
 		dbs[i].verifyEntryExistence(t, "test_table", "network1", "test_key", "test_value", true)
 	}
 
 	err = dbs[0].UpdateEntry("test_table", "network1", "test_key", []byte("test_updated_value"))
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	for i := 1; i < n; i++ {
 		dbs[i].verifyEntryExistence(t, "test_table", "network1", "test_key", "test_updated_value", true)
 	}
 
 	err = dbs[0].DeleteEntry("test_table", "network1", "test_key")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	for i := 1; i < n; i++ {
 		dbs[i].verifyEntryExistence(t, "test_table", "network1", "test_key", "", false)
@@ -451,8 +451,8 @@ func TestNetworkDBCRUDMediumCluster(t *testing.T) {
 
 	for i := 1; i < n; i++ {
 		_, err = dbs[i].GetEntry("test_table", "network1", "test_key")
-		assert.Error(t, err)
-		assert.True(t, strings.Contains(err.Error(), "deleted and pending garbage collection"))
+		assert.Check(t, is.ErrorContains(err, ""))
+		assert.Check(t, strings.Contains(err.Error(), "deleted and pending garbage collection"))
 	}
 
 	closeNetworkDBInstances(dbs)
@@ -464,14 +464,14 @@ func TestNetworkDBNodeJoinLeaveIteration(t *testing.T) {
 
 	// Single node Join/Leave
 	err := dbs[0].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	if len(dbs[0].networkNodes["network1"]) != 1 {
 		t.Fatalf("The networkNodes list has to have be 1 instead of %d", len(dbs[0].networkNodes["network1"]))
 	}
 
 	err = dbs[0].LeaveNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	if len(dbs[0].networkNodes["network1"]) != 0 {
 		t.Fatalf("The networkNodes list has to have be 0 instead of %d", len(dbs[0].networkNodes["network1"]))
@@ -479,10 +479,10 @@ func TestNetworkDBNodeJoinLeaveIteration(t *testing.T) {
 
 	// Multiple nodes Join/Leave
 	err = dbs[0].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	err = dbs[1].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	// Wait for the propagation on db[0]
 	for i := 0; i < maxRetry; i++ {
@@ -514,9 +514,9 @@ func TestNetworkDBNodeJoinLeaveIteration(t *testing.T) {
 
 	// Try a quick leave/join
 	err = dbs[0].LeaveNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 	err = dbs[0].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	for i := 0; i < maxRetry; i++ {
 		if len(dbs[0].networkNodes["network1"]) == 2 {
@@ -551,42 +551,42 @@ func TestNetworkDBGarbageCollection(t *testing.T) {
 
 	// 2 Nodes join network
 	err := dbs[0].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	err = dbs[1].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	for i := 0; i < keysWriteDelete; i++ {
 		err = dbs[i%2].CreateEntry("testTable", "network1", "key-"+string(i), []byte("value"))
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 	time.Sleep(time.Second)
 	for i := 0; i < keysWriteDelete; i++ {
 		err = dbs[i%2].DeleteEntry("testTable", "network1", "key-"+string(i))
-		assert.NoError(t, err)
+		assert.NilError(t, err)
 	}
 	for i := 0; i < 2; i++ {
-		assert.Equal(t, keysWriteDelete, dbs[i].networks[dbs[i].config.NodeID]["network1"].entriesNumber, "entries number should match")
+		assert.Check(t, is.Equal(keysWriteDelete, dbs[i].networks[dbs[i].config.NodeID]["network1"].entriesNumber), "entries number should match")
 	}
 
 	// from this point the timer for the garbage collection started, wait 5 seconds and then join a new node
 	time.Sleep(5 * time.Second)
 
 	err = dbs[2].JoinNetwork("network1")
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 	for i := 0; i < 3; i++ {
-		assert.Equal(t, keysWriteDelete, dbs[i].networks[dbs[i].config.NodeID]["network1"].entriesNumber, "entries number should match")
+		assert.Check(t, is.Equal(keysWriteDelete, dbs[i].networks[dbs[i].config.NodeID]["network1"].entriesNumber), "entries number should match")
 	}
 	// at this point the entries should had been all deleted
 	time.Sleep(30 * time.Second)
 	for i := 0; i < 3; i++ {
-		assert.Equal(t, 0, dbs[i].networks[dbs[i].config.NodeID]["network1"].entriesNumber, "entries should had been garbage collected")
+		assert.Check(t, is.Equal(0, dbs[i].networks[dbs[i].config.NodeID]["network1"].entriesNumber), "entries should had been garbage collected")
 	}
 
 	// make sure that entries are not coming back
 	time.Sleep(15 * time.Second)
 	for i := 0; i < 3; i++ {
-		assert.Equal(t, 0, dbs[i].networks[dbs[i].config.NodeID]["network1"].entriesNumber, "entries should had been garbage collected")
+		assert.Check(t, is.Equal(0, dbs[i].networks[dbs[i].config.NodeID]["network1"].entriesNumber), "entries should had been garbage collected")
 	}
 
 	closeNetworkDBInstances(dbs)
@@ -600,42 +600,42 @@ func TestFindNode(t *testing.T) {
 	dbs[0].leftNodes["left"] = &node{Node: memberlist.Node{Name: "left"}}
 
 	// active nodes is 2 because the testing node is in the list
-	assert.Equal(t, 2, len(dbs[0].nodes))
-	assert.Equal(t, 1, len(dbs[0].failedNodes))
-	assert.Equal(t, 1, len(dbs[0].leftNodes))
+	assert.Check(t, is.Len(dbs[0].nodes, 2))
+	assert.Check(t, is.Len(dbs[0].failedNodes, 1))
+	assert.Check(t, is.Len(dbs[0].leftNodes, 1))
 
 	n, currState, m := dbs[0].findNode("active")
-	assert.NotNil(t, n)
-	assert.Equal(t, "active", n.Name)
-	assert.Equal(t, nodeActiveState, currState)
-	assert.NotNil(t, m)
+	assert.Check(t, n != nil)
+	assert.Check(t, is.Equal("active", n.Name))
+	assert.Check(t, is.Equal(nodeActiveState, currState))
+	assert.Check(t, m != nil)
 	// delete the entry manually
 	delete(m, "active")
 
 	// test if can be still find
 	n, currState, m = dbs[0].findNode("active")
-	assert.Nil(t, n)
-	assert.Equal(t, nodeNotFound, currState)
-	assert.Nil(t, m)
+	assert.Check(t, is.Nil(n))
+	assert.Check(t, is.Equal(nodeNotFound, currState))
+	assert.Check(t, is.Nil(m))
 
 	n, currState, m = dbs[0].findNode("failed")
-	assert.NotNil(t, n)
-	assert.Equal(t, "failed", n.Name)
-	assert.Equal(t, nodeFailedState, currState)
-	assert.NotNil(t, m)
+	assert.Check(t, n != nil)
+	assert.Check(t, is.Equal("failed", n.Name))
+	assert.Check(t, is.Equal(nodeFailedState, currState))
+	assert.Check(t, m != nil)
 
 	// find and remove
 	n, currState, m = dbs[0].findNode("left")
-	assert.NotNil(t, n)
-	assert.Equal(t, "left", n.Name)
-	assert.Equal(t, nodeLeftState, currState)
-	assert.NotNil(t, m)
+	assert.Check(t, n != nil)
+	assert.Check(t, is.Equal("left", n.Name))
+	assert.Check(t, is.Equal(nodeLeftState, currState))
+	assert.Check(t, m != nil)
 	delete(m, "left")
 
 	n, currState, m = dbs[0].findNode("left")
-	assert.Nil(t, n)
-	assert.Equal(t, nodeNotFound, currState)
-	assert.Nil(t, m)
+	assert.Check(t, is.Nil(n))
+	assert.Check(t, is.Equal(nodeNotFound, currState))
+	assert.Check(t, is.Nil(m))
 
 	closeNetworkDBInstances(dbs)
 }
@@ -648,33 +648,33 @@ func TestChangeNodeState(t *testing.T) {
 	dbs[0].nodes["node3"] = &node{Node: memberlist.Node{Name: "node3"}}
 
 	// active nodes is 4 because the testing node is in the list
-	assert.Equal(t, 4, len(dbs[0].nodes))
+	assert.Check(t, is.Len(dbs[0].nodes, 4))
 
 	n, currState, m := dbs[0].findNode("node1")
-	assert.NotNil(t, n)
-	assert.Equal(t, nodeActiveState, currState)
-	assert.Equal(t, "node1", n.Name)
-	assert.NotNil(t, m)
+	assert.Check(t, n != nil)
+	assert.Check(t, is.Equal(nodeActiveState, currState))
+	assert.Check(t, is.Equal("node1", n.Name))
+	assert.Check(t, m != nil)
 
 	// node1 to failed
 	dbs[0].changeNodeState("node1", nodeFailedState)
 
 	n, currState, m = dbs[0].findNode("node1")
-	assert.NotNil(t, n)
-	assert.Equal(t, nodeFailedState, currState)
-	assert.Equal(t, "node1", n.Name)
-	assert.NotNil(t, m)
-	assert.NotEqual(t, time.Duration(0), n.reapTime)
+	assert.Check(t, n != nil)
+	assert.Check(t, is.Equal(nodeFailedState, currState))
+	assert.Check(t, is.Equal("node1", n.Name))
+	assert.Check(t, m != nil)
+	assert.Check(t, time.Duration(0) != n.reapTime)
 
 	// node1 back to active
 	dbs[0].changeNodeState("node1", nodeActiveState)
 
 	n, currState, m = dbs[0].findNode("node1")
-	assert.NotNil(t, n)
-	assert.Equal(t, nodeActiveState, currState)
-	assert.Equal(t, "node1", n.Name)
-	assert.NotNil(t, m)
-	assert.Equal(t, time.Duration(0), n.reapTime)
+	assert.Check(t, n != nil)
+	assert.Check(t, is.Equal(nodeActiveState, currState))
+	assert.Check(t, is.Equal("node1", n.Name))
+	assert.Check(t, m != nil)
+	assert.Check(t, is.Equal(time.Duration(0), n.reapTime))
 
 	// node1 to left
 	dbs[0].changeNodeState("node1", nodeLeftState)
@@ -682,30 +682,30 @@ func TestChangeNodeState(t *testing.T) {
 	dbs[0].changeNodeState("node3", nodeLeftState)
 
 	n, currState, m = dbs[0].findNode("node1")
-	assert.NotNil(t, n)
-	assert.Equal(t, nodeLeftState, currState)
-	assert.Equal(t, "node1", n.Name)
-	assert.NotNil(t, m)
-	assert.NotEqual(t, time.Duration(0), n.reapTime)
+	assert.Check(t, n != nil)
+	assert.Check(t, is.Equal(nodeLeftState, currState))
+	assert.Check(t, is.Equal("node1", n.Name))
+	assert.Check(t, m != nil)
+	assert.Check(t, time.Duration(0) != n.reapTime)
 
 	n, currState, m = dbs[0].findNode("node2")
-	assert.NotNil(t, n)
-	assert.Equal(t, nodeLeftState, currState)
-	assert.Equal(t, "node2", n.Name)
-	assert.NotNil(t, m)
-	assert.NotEqual(t, time.Duration(0), n.reapTime)
+	assert.Check(t, n != nil)
+	assert.Check(t, is.Equal(nodeLeftState, currState))
+	assert.Check(t, is.Equal("node2", n.Name))
+	assert.Check(t, m != nil)
+	assert.Check(t, time.Duration(0) != n.reapTime)
 
 	n, currState, m = dbs[0].findNode("node3")
-	assert.NotNil(t, n)
-	assert.Equal(t, nodeLeftState, currState)
-	assert.Equal(t, "node3", n.Name)
-	assert.NotNil(t, m)
-	assert.NotEqual(t, time.Duration(0), n.reapTime)
+	assert.Check(t, n != nil)
+	assert.Check(t, is.Equal(nodeLeftState, currState))
+	assert.Check(t, is.Equal("node3", n.Name))
+	assert.Check(t, m != nil)
+	assert.Check(t, time.Duration(0) != n.reapTime)
 
 	// active nodes is 1 because the testing node is in the list
-	assert.Equal(t, 1, len(dbs[0].nodes))
-	assert.Equal(t, 0, len(dbs[0].failedNodes))
-	assert.Equal(t, 3, len(dbs[0].leftNodes))
+	assert.Check(t, is.Len(dbs[0].nodes, 1))
+	assert.Check(t, is.Len(dbs[0].failedNodes, 0))
+	assert.Check(t, is.Len(dbs[0].leftNodes, 3))
 
 	closeNetworkDBInstances(dbs)
 }
@@ -718,29 +718,29 @@ func TestNodeReincarnation(t *testing.T) {
 	dbs[0].failedNodes["node3"] = &node{Node: memberlist.Node{Name: "node3", Addr: net.ParseIP("192.168.1.3")}}
 
 	// active nodes is 2 because the testing node is in the list
-	assert.Equal(t, 2, len(dbs[0].nodes))
-	assert.Equal(t, 1, len(dbs[0].failedNodes))
-	assert.Equal(t, 1, len(dbs[0].leftNodes))
+	assert.Check(t, is.Len(dbs[0].nodes, 2))
+	assert.Check(t, is.Len(dbs[0].failedNodes, 1))
+	assert.Check(t, is.Len(dbs[0].leftNodes, 1))
 
 	b := dbs[0].purgeReincarnation(&memberlist.Node{Name: "node4", Addr: net.ParseIP("192.168.1.1")})
-	assert.True(t, b)
+	assert.Check(t, b)
 	dbs[0].nodes["node4"] = &node{Node: memberlist.Node{Name: "node4", Addr: net.ParseIP("192.168.1.1")}}
 
 	b = dbs[0].purgeReincarnation(&memberlist.Node{Name: "node5", Addr: net.ParseIP("192.168.1.2")})
-	assert.True(t, b)
+	assert.Check(t, b)
 	dbs[0].nodes["node5"] = &node{Node: memberlist.Node{Name: "node5", Addr: net.ParseIP("192.168.1.1")}}
 
 	b = dbs[0].purgeReincarnation(&memberlist.Node{Name: "node6", Addr: net.ParseIP("192.168.1.3")})
-	assert.True(t, b)
+	assert.Check(t, b)
 	dbs[0].nodes["node6"] = &node{Node: memberlist.Node{Name: "node6", Addr: net.ParseIP("192.168.1.1")}}
 
 	b = dbs[0].purgeReincarnation(&memberlist.Node{Name: "node6", Addr: net.ParseIP("192.168.1.10")})
-	assert.False(t, b)
+	assert.Check(t, !b)
 
 	// active nodes is 1 because the testing node is in the list
-	assert.Equal(t, 4, len(dbs[0].nodes))
-	assert.Equal(t, 0, len(dbs[0].failedNodes))
-	assert.Equal(t, 3, len(dbs[0].leftNodes))
+	assert.Check(t, is.Len(dbs[0].nodes, 4))
+	assert.Check(t, is.Len(dbs[0].failedNodes, 0))
+	assert.Check(t, is.Len(dbs[0].leftNodes, 3))
 
 	closeNetworkDBInstances(dbs)
 }
@@ -769,7 +769,7 @@ func TestParallelCreate(t *testing.T) {
 	}
 	close(doneCh)
 	// Only 1 write should have succeeded
-	assert.Equal(t, int32(1), success)
+	assert.Check(t, is.Equal(int32(1), success))
 
 	closeNetworkDBInstances(dbs)
 }
@@ -778,7 +778,7 @@ func TestParallelDelete(t *testing.T) {
 	dbs := createNetworkDBInstances(t, 1, "node", DefaultConfig())
 
 	err := dbs[0].CreateEntry("testTable", "testNetwork", "key", []byte("value"))
-	assert.NoError(t, err)
+	assert.NilError(t, err)
 
 	startCh := make(chan int)
 	doneCh := make(chan error)
@@ -801,7 +801,7 @@ func TestParallelDelete(t *testing.T) {
 	}
 	close(doneCh)
 	// Only 1 write should have succeeded
-	assert.Equal(t, int32(1), success)
+	assert.Check(t, is.Equal(int32(1), success))
 
 	closeNetworkDBInstances(dbs)
 }
@@ -819,7 +819,7 @@ func TestNetworkDBIslands(t *testing.T) {
 		fmt.Sprintf("%s:%d", baseIPStr, dbs[2].config.BindPort)}
 	// Rejoining will update the list of the bootstrap members
 	for i := 3; i < 5; i++ {
-		assert.NoError(t, dbs[i].Join(members))
+		assert.Check(t, dbs[i].Join(members))
 	}
 
 	// Now the 3 bootstrap nodes will cleanly leave, and will be properly removed from the other 2 nodes
@@ -834,8 +834,8 @@ func TestNetworkDBIslands(t *testing.T) {
 
 	// Verify that the nodes are actually all gone and marked appropiately
 	for i := 3; i < 5; i++ {
-		assert.Len(t, dbs[i].leftNodes, 3)
-		assert.Len(t, dbs[i].failedNodes, 0)
+		assert.Check(t, is.Len(dbs[i].leftNodes, 3))
+		assert.Check(t, is.Len(dbs[i].failedNodes, 0))
 	}
 
 	// Spawn again the first 3 nodes with different names but same IP:port
@@ -851,14 +851,14 @@ func TestNetworkDBIslands(t *testing.T) {
 
 	// Verify that the cluster is again all connected. Note that the 3 previous node did not do any join
 	for i := 0; i < 5; i++ {
-		assert.Len(t, dbs[i].nodes, 5)
-		assert.Len(t, dbs[i].failedNodes, 0)
+		assert.Check(t, is.Len(dbs[i].nodes, 5))
+		assert.Check(t, is.Len(dbs[i].failedNodes, 0))
 		if i < 3 {
 			// nodes from 0 to 3 has no left nodes
-			assert.Len(t, dbs[i].leftNodes, 0)
+			assert.Check(t, is.Len(dbs[i].leftNodes, 0))
 		} else {
 			// nodes from 4 to 5 has the 3 previous left nodes
-			assert.Len(t, dbs[i].leftNodes, 3)
+			assert.Check(t, is.Len(dbs[i].leftNodes, 3))
 		}
 	}
 }

libnetwork/osl/kernel/knobs_linux_test.go

@@ -4,7 +4,8 @@ import (
 	"testing"
 
 	"github.com/sirupsen/logrus"
-	"github.com/stretchr/testify/assert"
+	"gotest.tools/assert"
+	is "gotest.tools/assert/cmp"
 
 	_ "github.com/docker/libnetwork/testutils"
 )
@@ -23,11 +24,11 @@ func TestReadWriteKnobs(t *testing.T) {
 			continue
 		}
 		// Test the write
-		assert.NoError(t, writeSystemProperty(k, "10000"))
+		assert.Check(t, writeSystemProperty(k, "10000"))
 		newV, err := readSystemProperty(k)
-		assert.NoError(t, err)
-		assert.Equal(t, newV, "10000")
+		assert.NilError(t, err)
+		assert.Check(t, is.Equal(newV, "10000"))
 		// Restore value
-		assert.NoError(t, writeSystemProperty(k, v))
+		assert.Check(t, writeSystemProperty(k, v))
 	}
 }

libnetwork/service_common_test.go

@@ -5,21 +5,21 @@ import (
 	"testing"
 
 	"github.com/docker/libnetwork/resolvconf"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
+	"gotest.tools/assert"
+	is "gotest.tools/assert/cmp"
 )
 
 func TestCleanupServiceDiscovery(t *testing.T) {
 	c, err := New()
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	defer c.Stop()
 
 	n1, err := c.NewNetwork("bridge", "net1", "", nil)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	defer n1.Delete()
 
 	n2, err := c.NewNetwork("bridge", "net2", "", nil)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	defer n2.Delete()
 
 	n1.(*network).addSvcRecords("N1ep1", "service_test", "serviceID1", net.ParseIP("192.168.0.1"), net.IP{}, true, "test")
@@ -48,65 +48,65 @@ func TestCleanupServiceDiscovery(t *testing.T) {
 
 func TestDNSOptions(t *testing.T) {
 	c, err := New()
-	require.NoError(t, err)
+	assert.NilError(t, err)
 
 	sb, err := c.(*controller).NewSandbox("cnt1", nil)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	defer sb.Delete()
 	sb.(*sandbox).startResolver(false)
 
 	err = sb.(*sandbox).setupDNS()
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	err = sb.(*sandbox).rebuildDNS()
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	currRC, err := resolvconf.GetSpecific(sb.(*sandbox).config.resolvConfPath)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	dnsOptionsList := resolvconf.GetOptions(currRC.Content)
-	assert.Equal(t, 1, len(dnsOptionsList))
-	assert.Equal(t, "ndots:0", dnsOptionsList[0])
+	assert.Check(t, is.Len(dnsOptionsList, 1))
+	assert.Check(t, is.Equal("ndots:0", dnsOptionsList[0]))
 
 	sb.(*sandbox).config.dnsOptionsList = []string{"ndots:5"}
 	err = sb.(*sandbox).setupDNS()
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	currRC, err = resolvconf.GetSpecific(sb.(*sandbox).config.resolvConfPath)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	dnsOptionsList = resolvconf.GetOptions(currRC.Content)
-	assert.Equal(t, 1, len(dnsOptionsList))
-	assert.Equal(t, "ndots:5", dnsOptionsList[0])
+	assert.Check(t, is.Len(dnsOptionsList, 1))
+	assert.Check(t, is.Equal("ndots:5", dnsOptionsList[0]))
 
 	err = sb.(*sandbox).rebuildDNS()
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	currRC, err = resolvconf.GetSpecific(sb.(*sandbox).config.resolvConfPath)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	dnsOptionsList = resolvconf.GetOptions(currRC.Content)
-	assert.Equal(t, 1, len(dnsOptionsList))
-	assert.Equal(t, "ndots:5", dnsOptionsList[0])
+	assert.Check(t, is.Len(dnsOptionsList, 1))
+	assert.Check(t, is.Equal("ndots:5", dnsOptionsList[0]))
 
 	sb2, err := c.(*controller).NewSandbox("cnt2", nil)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	defer sb2.Delete()
 	sb2.(*sandbox).startResolver(false)
 
 	sb2.(*sandbox).config.dnsOptionsList = []string{"ndots:0"}
 	err = sb2.(*sandbox).setupDNS()
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	err = sb2.(*sandbox).rebuildDNS()
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	currRC, err = resolvconf.GetSpecific(sb2.(*sandbox).config.resolvConfPath)
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	dnsOptionsList = resolvconf.GetOptions(currRC.Content)
-	assert.Equal(t, 1, len(dnsOptionsList))
-	assert.Equal(t, "ndots:0", dnsOptionsList[0])
+	assert.Check(t, is.Len(dnsOptionsList, 1))
+	assert.Check(t, is.Equal("ndots:0", dnsOptionsList[0]))
 
 	sb2.(*sandbox).config.dnsOptionsList = []string{"ndots:foobar"}
 	err = sb2.(*sandbox).setupDNS()
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	err = sb2.(*sandbox).rebuildDNS()
-	require.EqualError(t, err, "invalid number for ndots option: foobar")
+	assert.Error(t, err, "invalid number for ndots option: foobar")
 
 	sb2.(*sandbox).config.dnsOptionsList = []string{"ndots:-1"}
 	err = sb2.(*sandbox).setupDNS()
-	require.NoError(t, err)
+	assert.NilError(t, err)
 	err = sb2.(*sandbox).rebuildDNS()
-	require.EqualError(t, err, "invalid number for ndots option: -1")
+	assert.Error(t, err, "invalid number for ndots option: -1")
 }

libnetwork/types/types_test.go

@@ -4,9 +4,9 @@ import (
 	"net"
 	"testing"
 
-	"github.com/stretchr/testify/require"
-
 	_ "github.com/docker/libnetwork/testutils"
+	"gotest.tools/assert"
+	is "gotest.tools/assert/cmp"
 )
 
 func TestTransportPortConv(t *testing.T) {
@@ -76,10 +76,10 @@ func TestTransportPortBindingConv(t *testing.T) {
 		rc := new(PortBinding)
 		err := rc.FromString(in.sform)
 		if in.shouldFail {
-			require.Error(t, err, "Unexpected success parsing %s", in.sform)
+			assert.Assert(t, is.ErrorContains(err, ""), "Unexpected success parsing %s", in.sform)
 		} else {
-			require.NoError(t, err)
-			require.Equal(t, in.pb, *rc, "input %s: expected %#v, got %#v", in.sform, in.pb, rc)
+			assert.NilError(t, err)
+			assert.Assert(t, is.DeepEqual(in.pb, *rc), "input %s: expected %#v, got %#v", in.sform, in.pb, rc)
 		}
 	}
 }

libnetwork/vendor.conf

@@ -6,12 +6,9 @@ github.com/armon/go-metrics eb0af217e5e9747e41dd5303755356b62d28e3ec
 github.com/armon/go-radix e39d623f12e8e41c7b5529e9a9dd67a1e2261f80
 github.com/boltdb/bolt fff57c100f4dea1905678da7e90d92429dff2904
 github.com/codegangsta/cli a65b733b303f0055f8d324d805f393cd3e7a7904
-github.com/containerd/console cb7008ab3d8359b78c5f464cb7cf160107ad5925
 github.com/containerd/continuity d3c23511c1bf5851696cba83143d9cbcd666869b
 github.com/coreos/etcd v3.2.1
 github.com/coreos/go-semver v0.2.0
-github.com/coreos/go-systemd v17
-github.com/coreos/pkg fa29b1d70f0beaddd4c7021607cc3c3be8ce94b8
 github.com/deckarep/golang-set ef32fa3046d9f249d399f98ebaf9be944430fd1d
 
 github.com/docker/docker 162ba6016def672690ee4a1f3978368853a1e149
@@ -22,7 +19,6 @@ github.com/docker/libkv 1d8431073ae03cdaedb198a89722f3aab6d418ef
 
 github.com/godbus/dbus v4.0.0
 github.com/gogo/protobuf v1.0.0
-github.com/golang/protobuf v1.1.0
 github.com/gorilla/context v1.1
 github.com/gorilla/mux v1.1
 github.com/hashicorp/consul v0.5.2
@@ -34,16 +30,12 @@ github.com/hashicorp/go-sockaddr 6d291a969b86c4b633730bfc6b8b9d64c3aafed9
 github.com/hashicorp/serf 598c54895cc5a7b1a24a398d635e8c0ea0959870
 github.com/mattn/go-shellwords v1.0.3
 github.com/miekg/dns v1.0.7
-github.com/mrunalp/fileutils ed869b029674c0e9ce4c0dfa781405c2d9946d08
 github.com/opencontainers/go-digest v1.0.0-rc1
 github.com/opencontainers/image-spec v1.0.1
 github.com/opencontainers/runc 69663f0bd4b60df09991c08812a60108003fa340
 github.com/opencontainers/runtime-spec v1.0.1
-github.com/opencontainers/selinux b29023b86e4a69d1b46b7e7b4e2b6fda03f0b9cd
 github.com/samuel/go-zookeeper d0e0d8e11f318e000a8cc434616d69e329edc374
-github.com/seccomp/libseccomp-golang 32f571b70023028bd57d9288c20efbcb237f3ce0
 github.com/sirupsen/logrus v1.0.3
-github.com/stretchr/testify v1.2.2
 github.com/syndtr/gocapability 33e07d32887e1e06b7c025f27ce52f62c7990bc0
 github.com/ugorji/go f1f1a805ed361a0e078bb537e4ea78cd37dcf065
 github.com/vishvananda/netlink b2de5d10e38ecce8607e6b438b6d174f389a004e
@@ -55,12 +47,5 @@ golang.org/x/sync fd80eb99c8f653c847d294a001bdf2a3a6f768f5
 github.com/pkg/errors 839d9e913e063e28dfd0e6c7b7512793e0a48be9
 github.com/ishidawataru/sctp 07191f837fedd2f13d1ec7b5f885f0f3ec54b1cb
 
-github.com/davecgh/go-spew v1.1.0
-github.com/pmezard/go-difflib v1.0.0
-github.com/cyphar/filepath-securejoin v0.2.1
-github.com/hashicorp/errwrap 7554cd9344cec97297fa6649b055a8c98c2a1e55
-github.com/hashicorp/go-immutable-radix 7f3cd4390caab3250a57f30efdb2a65dd7649ecf
-github.com/hashicorp/golang-lru 0fb14efe8c47ae851c0034ed7a448854d3d34cf3
-github.com/hashicorp/go-cleanhttp d5fe4b57a186c716b0e00b8c301cbd9b4182694d
-github.com/hashicorp/go-rootcerts 6bb64b370b90e7ef1fa532be9e591a81c3493e00
-github.com/mitchellh/go-homedir 3864e76763d94a6df2f9960b16a20a33da9f9a66
+gotest.tools v2.1.0
+github.com/google/go-cmp v0.2.0

libnetwork/vendor/github.com/davecgh/go-spew/LICENSE

@@ -1,15 +0,0 @@
-ISC License
-
-Copyright (c) 2012-2016 Dave Collins <dave@davec.name>
-
-Permission to use, copy, modify, and distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

libnetwork/vendor/github.com/davecgh/go-spew/README.md

@@ -1,205 +0,0 @@
-go-spew
-=======
-
-[![Build Status](https://img.shields.io/travis/davecgh/go-spew.svg)]
-(https://travis-ci.org/davecgh/go-spew) [![ISC License]
-(http://img.shields.io/badge/license-ISC-blue.svg)](http://copyfree.org) [![Coverage Status]
-(https://img.shields.io/coveralls/davecgh/go-spew.svg)]
-(https://coveralls.io/r/davecgh/go-spew?branch=master)
-
-
-Go-spew implements a deep pretty printer for Go data structures to aid in
-debugging.  A comprehensive suite of tests with 100% test coverage is provided
-to ensure proper functionality.  See `test_coverage.txt` for the gocov coverage
-report.  Go-spew is licensed under the liberal ISC license, so it may be used in
-open source or commercial projects.
-
-If you're interested in reading about how this package came to life and some
-of the challenges involved in providing a deep pretty printer, there is a blog
-post about it
-[here](https://web.archive.org/web/20160304013555/https://blog.cyphertite.com/go-spew-a-journey-into-dumping-go-data-structures/).
-
-## Documentation
-
-[![GoDoc](https://img.shields.io/badge/godoc-reference-blue.svg)]
-(http://godoc.org/github.com/davecgh/go-spew/spew)
-
-Full `go doc` style documentation for the project can be viewed online without
-installing this package by using the excellent GoDoc site here:
-http://godoc.org/github.com/davecgh/go-spew/spew
-
-You can also view the documentation locally once the package is installed with
-the `godoc` tool by running `godoc -http=":6060"` and pointing your browser to
-http://localhost:6060/pkg/github.com/davecgh/go-spew/spew
-
-## Installation
-
-```bash
-$ go get -u github.com/davecgh/go-spew/spew
-```
-
-## Quick Start
-
-Add this import line to the file you're working in:
-
-```Go
-import "github.com/davecgh/go-spew/spew"
-```
-
-To dump a variable with full newlines, indentation, type, and pointer
-information use Dump, Fdump, or Sdump:
-
-```Go
-spew.Dump(myVar1, myVar2, ...)
-spew.Fdump(someWriter, myVar1, myVar2, ...)
-str := spew.Sdump(myVar1, myVar2, ...)
-```
-
-Alternatively, if you would prefer to use format strings with a compacted inline
-printing style, use the convenience wrappers Printf, Fprintf, etc with %v (most
-compact), %+v (adds pointer addresses), %#v (adds types), or %#+v (adds types
-and pointer addresses): 
-
-```Go
-spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
-spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
-spew.Fprintf(someWriter, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
-spew.Fprintf(someWriter, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
-```
-
-## Debugging a Web Application Example
-
-Here is an example of how you can use `spew.Sdump()` to help debug a web application. Please be sure to wrap your output using the `html.EscapeString()` function for safety reasons. You should also only use this debugging technique in a development environment, never in production.
-
-```Go
-package main
-
-import (
-    "fmt"
-    "html"
-    "net/http"
-
-    "github.com/davecgh/go-spew/spew"
-)
-
-func handler(w http.ResponseWriter, r *http.Request) {
-    w.Header().Set("Content-Type", "text/html")
-    fmt.Fprintf(w, "Hi there, %s!", r.URL.Path[1:])
-    fmt.Fprintf(w, "<!--\n" + html.EscapeString(spew.Sdump(w)) + "\n-->")
-}
-
-func main() {
-    http.HandleFunc("/", handler)
-    http.ListenAndServe(":8080", nil)
-}
-```
-
-## Sample Dump Output
-
-```
-(main.Foo) {
- unexportedField: (*main.Bar)(0xf84002e210)({
-  flag: (main.Flag) flagTwo,
-  data: (uintptr) <nil>
- }),
- ExportedField: (map[interface {}]interface {}) {
-  (string) "one": (bool) true
- }
-}
-([]uint8) {
- 00000000  11 12 13 14 15 16 17 18  19 1a 1b 1c 1d 1e 1f 20  |............... |
- 00000010  21 22 23 24 25 26 27 28  29 2a 2b 2c 2d 2e 2f 30  |!"#$%&'()*+,-./0|
- 00000020  31 32                                             |12|
-}
-```
-
-## Sample Formatter Output
-
-Double pointer to a uint8:
-```
-	  %v: <**>5
-	 %+v: <**>(0xf8400420d0->0xf8400420c8)5
-	 %#v: (**uint8)5
-	%#+v: (**uint8)(0xf8400420d0->0xf8400420c8)5
-```
-
-Pointer to circular struct with a uint8 field and a pointer to itself:
-```
-	  %v: <*>{1 <*><shown>}
-	 %+v: <*>(0xf84003e260){ui8:1 c:<*>(0xf84003e260)<shown>}
-	 %#v: (*main.circular){ui8:(uint8)1 c:(*main.circular)<shown>}
-	%#+v: (*main.circular)(0xf84003e260){ui8:(uint8)1 c:(*main.circular)(0xf84003e260)<shown>}
-```
-
-## Configuration Options
-
-Configuration of spew is handled by fields in the ConfigState type. For
-convenience, all of the top-level functions use a global state available via the
-spew.Config global.
-
-It is also possible to create a ConfigState instance that provides methods
-equivalent to the top-level functions. This allows concurrent configuration
-options. See the ConfigState documentation for more details.
-
-```
-* Indent
-	String to use for each indentation level for Dump functions.
-	It is a single space by default.  A popular alternative is "\t".
-
-* MaxDepth
-	Maximum number of levels to descend into nested data structures.
-	There is no limit by default.
-
-* DisableMethods
-	Disables invocation of error and Stringer interface methods.
-	Method invocation is enabled by default.
-
-* DisablePointerMethods
-	Disables invocation of error and Stringer interface methods on types
-	which only accept pointer receivers from non-pointer variables.  This option
-	relies on access to the unsafe package, so it will not have any effect when
-	running in environments without access to the unsafe package such as Google
-	App Engine or with the "safe" build tag specified.
-	Pointer method invocation is enabled by default.
-
-* DisablePointerAddresses
-	DisablePointerAddresses specifies whether to disable the printing of
-	pointer addresses. This is useful when diffing data structures in tests.
-
-* DisableCapacities
-	DisableCapacities specifies whether to disable the printing of capacities
-	for arrays, slices, maps and channels. This is useful when diffing data
-	structures in tests.
-
-* ContinueOnMethod
-	Enables recursion into types after invoking error and Stringer interface
-	methods. Recursion after method invocation is disabled by default.
-
-* SortKeys
-	Specifies map keys should be sorted before being printed. Use
-	this to have a more deterministic, diffable output.  Note that
-	only native types (bool, int, uint, floats, uintptr and string)
-	and types which implement error or Stringer interfaces are supported,
-	with other types sorted according to the reflect.Value.String() output
-	which guarantees display stability.  Natural map order is used by
-	default.
-
-* SpewKeys
-	SpewKeys specifies that, as a last resort attempt, map keys should be
-	spewed to strings and sorted by those strings.  This is only considered
-	if SortKeys is true.
-
-```
-
-## Unsafe Package Dependency
-
-This package relies on the unsafe package to perform some of the more advanced
-features, however it also supports a "limited" mode which allows it to work in
-environments where the unsafe package is not available.  By default, it will
-operate in this mode on Google App Engine and when compiled with GopherJS.  The
-"safe" build tag may also be specified to force the package to build without
-using the unsafe package.
-
-## License
-
-Go-spew is licensed under the [copyfree](http://copyfree.org) ISC License.

libnetwork/vendor/github.com/davecgh/go-spew/spew/bypass.go

@@ -1,152 +0,0 @@
-// Copyright (c) 2015-2016 Dave Collins <dave@davec.name>
-//
-// Permission to use, copy, modify, and distribute this software for any
-// purpose with or without fee is hereby granted, provided that the above
-// copyright notice and this permission notice appear in all copies.
-//
-// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-// NOTE: Due to the following build constraints, this file will only be compiled
-// when the code is not running on Google App Engine, compiled by GopherJS, and
-// "-tags safe" is not added to the go build command line.  The "disableunsafe"
-// tag is deprecated and thus should not be used.
-// +build !js,!appengine,!safe,!disableunsafe
-
-package spew
-
-import (
-	"reflect"
-	"unsafe"
-)
-
-const (
-	// UnsafeDisabled is a build-time constant which specifies whether or
-	// not access to the unsafe package is available.
-	UnsafeDisabled = false
-
-	// ptrSize is the size of a pointer on the current arch.
-	ptrSize = unsafe.Sizeof((*byte)(nil))
-)
-
-var (
-	// offsetPtr, offsetScalar, and offsetFlag are the offsets for the
-	// internal reflect.Value fields.  These values are valid before golang
-	// commit ecccf07e7f9d which changed the format.  The are also valid
-	// after commit 82f48826c6c7 which changed the format again to mirror
-	// the original format.  Code in the init function updates these offsets
-	// as necessary.
-	offsetPtr    = uintptr(ptrSize)
-	offsetScalar = uintptr(0)
-	offsetFlag   = uintptr(ptrSize * 2)
-
-	// flagKindWidth and flagKindShift indicate various bits that the
-	// reflect package uses internally to track kind information.
-	//
-	// flagRO indicates whether or not the value field of a reflect.Value is
-	// read-only.
-	//
-	// flagIndir indicates whether the value field of a reflect.Value is
-	// the actual data or a pointer to the data.
-	//
-	// These values are valid before golang commit 90a7c3c86944 which
-	// changed their positions.  Code in the init function updates these
-	// flags as necessary.
-	flagKindWidth = uintptr(5)
-	flagKindShift = uintptr(flagKindWidth - 1)
-	flagRO        = uintptr(1 << 0)
-	flagIndir     = uintptr(1 << 1)
-)
-
-func init() {
-	// Older versions of reflect.Value stored small integers directly in the
-	// ptr field (which is named val in the older versions).  Versions
-	// between commits ecccf07e7f9d and 82f48826c6c7 added a new field named
-	// scalar for this purpose which unfortunately came before the flag
-	// field, so the offset of the flag field is different for those
-	// versions.
-	//
-	// This code constructs a new reflect.Value from a known small integer
-	// and checks if the size of the reflect.Value struct indicates it has
-	// the scalar field. When it does, the offsets are updated accordingly.
-	vv := reflect.ValueOf(0xf00)
-	if unsafe.Sizeof(vv) == (ptrSize * 4) {
-		offsetScalar = ptrSize * 2
-		offsetFlag = ptrSize * 3
-	}
-
-	// Commit 90a7c3c86944 changed the flag positions such that the low
-	// order bits are the kind.  This code extracts the kind from the flags
-	// field and ensures it's the correct type.  When it's not, the flag
-	// order has been changed to the newer format, so the flags are updated
-	// accordingly.
-	upf := unsafe.Pointer(uintptr(unsafe.Pointer(&vv)) + offsetFlag)
-	upfv := *(*uintptr)(upf)
-	flagKindMask := uintptr((1<<flagKindWidth - 1) << flagKindShift)
-	if (upfv&flagKindMask)>>flagKindShift != uintptr(reflect.Int) {
-		flagKindShift = 0
-		flagRO = 1 << 5
-		flagIndir = 1 << 6
-
-		// Commit adf9b30e5594 modified the flags to separate the
-		// flagRO flag into two bits which specifies whether or not the
-		// field is embedded.  This causes flagIndir to move over a bit
-		// and means that flagRO is the combination of either of the
-		// original flagRO bit and the new bit.
-		//
-		// This code detects the change by extracting what used to be
-		// the indirect bit to ensure it's set.  When it's not, the flag
-		// order has been changed to the newer format, so the flags are
-		// updated accordingly.
-		if upfv&flagIndir == 0 {
-			flagRO = 3 << 5
-			flagIndir = 1 << 7
-		}
-	}
-}
-
-// unsafeReflectValue converts the passed reflect.Value into a one that bypasses
-// the typical safety restrictions preventing access to unaddressable and
-// unexported data.  It works by digging the raw pointer to the underlying
-// value out of the protected value and generating a new unprotected (unsafe)
-// reflect.Value to it.
-//
-// This allows us to check for implementations of the Stringer and error
-// interfaces to be used for pretty printing ordinarily unaddressable and
-// inaccessible values such as unexported struct fields.
-func unsafeReflectValue(v reflect.Value) (rv reflect.Value) {
-	indirects := 1
-	vt := v.Type()
-	upv := unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetPtr)
-	rvf := *(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetFlag))
-	if rvf&flagIndir != 0 {
-		vt = reflect.PtrTo(v.Type())
-		indirects++
-	} else if offsetScalar != 0 {
-		// The value is in the scalar field when it's not one of the
-		// reference types.
-		switch vt.Kind() {
-		case reflect.Uintptr:
-		case reflect.Chan:
-		case reflect.Func:
-		case reflect.Map:
-		case reflect.Ptr:
-		case reflect.UnsafePointer:
-		default:
-			upv = unsafe.Pointer(uintptr(unsafe.Pointer(&v)) +
-				offsetScalar)
-		}
-	}
-
-	pv := reflect.NewAt(vt, upv)
-	rv = pv
-	for i := 0; i < indirects; i++ {
-		rv = rv.Elem()
-	}
-	return rv
-}

libnetwork/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go

@@ -1,38 +0,0 @@
-// Copyright (c) 2015-2016 Dave Collins <dave@davec.name>
-//
-// Permission to use, copy, modify, and distribute this software for any
-// purpose with or without fee is hereby granted, provided that the above
-// copyright notice and this permission notice appear in all copies.
-//
-// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-// NOTE: Due to the following build constraints, this file will only be compiled
-// when the code is running on Google App Engine, compiled by GopherJS, or
-// "-tags safe" is added to the go build command line.  The "disableunsafe"
-// tag is deprecated and thus should not be used.
-// +build js appengine safe disableunsafe
-
-package spew
-
-import "reflect"
-
-const (
-	// UnsafeDisabled is a build-time constant which specifies whether or
-	// not access to the unsafe package is available.
-	UnsafeDisabled = true
-)
-
-// unsafeReflectValue typically converts the passed reflect.Value into a one
-// that bypasses the typical safety restrictions preventing access to
-// unaddressable and unexported data.  However, doing this relies on access to
-// the unsafe package.  This is a stub version which simply returns the passed
-// reflect.Value when the unsafe package is not available.
-func unsafeReflectValue(v reflect.Value) reflect.Value {
-	return v
-}

libnetwork/vendor/github.com/davecgh/go-spew/spew/common.go

@@ -1,341 +0,0 @@
-/*
- * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-package spew
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"reflect"
-	"sort"
-	"strconv"
-)
-
-// Some constants in the form of bytes to avoid string overhead.  This mirrors
-// the technique used in the fmt package.
-var (
-	panicBytes            = []byte("(PANIC=")
-	plusBytes             = []byte("+")
-	iBytes                = []byte("i")
-	trueBytes             = []byte("true")
-	falseBytes            = []byte("false")
-	interfaceBytes        = []byte("(interface {})")
-	commaNewlineBytes     = []byte(",\n")
-	newlineBytes          = []byte("\n")
-	openBraceBytes        = []byte("{")
-	openBraceNewlineBytes = []byte("{\n")
-	closeBraceBytes       = []byte("}")
-	asteriskBytes         = []byte("*")
-	colonBytes            = []byte(":")
-	colonSpaceBytes       = []byte(": ")
-	openParenBytes        = []byte("(")
-	closeParenBytes       = []byte(")")
-	spaceBytes            = []byte(" ")
-	pointerChainBytes     = []byte("->")
-	nilAngleBytes         = []byte("<nil>")
-	maxNewlineBytes       = []byte("<max depth reached>\n")
-	maxShortBytes         = []byte("<max>")
-	circularBytes         = []byte("<already shown>")
-	circularShortBytes    = []byte("<shown>")
-	invalidAngleBytes     = []byte("<invalid>")
-	openBracketBytes      = []byte("[")
-	closeBracketBytes     = []byte("]")
-	percentBytes          = []byte("%")
-	precisionBytes        = []byte(".")
-	openAngleBytes        = []byte("<")
-	closeAngleBytes       = []byte(">")
-	openMapBytes          = []byte("map[")
-	closeMapBytes         = []byte("]")
-	lenEqualsBytes        = []byte("len=")
-	capEqualsBytes        = []byte("cap=")
-)
-
-// hexDigits is used to map a decimal value to a hex digit.
-var hexDigits = "0123456789abcdef"
-
-// catchPanic handles any panics that might occur during the handleMethods
-// calls.
-func catchPanic(w io.Writer, v reflect.Value) {
-	if err := recover(); err != nil {
-		w.Write(panicBytes)
-		fmt.Fprintf(w, "%v", err)
-		w.Write(closeParenBytes)
-	}
-}
-
-// handleMethods attempts to call the Error and String methods on the underlying
-// type the passed reflect.Value represents and outputes the result to Writer w.
-//
-// It handles panics in any called methods by catching and displaying the error
-// as the formatted value.
-func handleMethods(cs *ConfigState, w io.Writer, v reflect.Value) (handled bool) {
-	// We need an interface to check if the type implements the error or
-	// Stringer interface.  However, the reflect package won't give us an
-	// interface on certain things like unexported struct fields in order
-	// to enforce visibility rules.  We use unsafe, when it's available,
-	// to bypass these restrictions since this package does not mutate the
-	// values.
-	if !v.CanInterface() {
-		if UnsafeDisabled {
-			return false
-		}
-
-		v = unsafeReflectValue(v)
-	}
-
-	// Choose whether or not to do error and Stringer interface lookups against
-	// the base type or a pointer to the base type depending on settings.
-	// Technically calling one of these methods with a pointer receiver can
-	// mutate the value, however, types which choose to satisify an error or
-	// Stringer interface with a pointer receiver should not be mutating their
-	// state inside these interface methods.
-	if !cs.DisablePointerMethods && !UnsafeDisabled && !v.CanAddr() {
-		v = unsafeReflectValue(v)
-	}
-	if v.CanAddr() {
-		v = v.Addr()
-	}
-
-	// Is it an error or Stringer?
-	switch iface := v.Interface().(type) {
-	case error:
-		defer catchPanic(w, v)
-		if cs.ContinueOnMethod {
-			w.Write(openParenBytes)
-			w.Write([]byte(iface.Error()))
-			w.Write(closeParenBytes)
-			w.Write(spaceBytes)
-			return false
-		}
-
-		w.Write([]byte(iface.Error()))
-		return true
-
-	case fmt.Stringer:
-		defer catchPanic(w, v)
-		if cs.ContinueOnMethod {
-			w.Write(openParenBytes)
-			w.Write([]byte(iface.String()))
-			w.Write(closeParenBytes)
-			w.Write(spaceBytes)
-			return false
-		}
-		w.Write([]byte(iface.String()))
-		return true
-	}
-	return false
-}
-
-// printBool outputs a boolean value as true or false to Writer w.
-func printBool(w io.Writer, val bool) {
-	if val {
-		w.Write(trueBytes)
-	} else {
-		w.Write(falseBytes)
-	}
-}
-
-// printInt outputs a signed integer value to Writer w.
-func printInt(w io.Writer, val int64, base int) {
-	w.Write([]byte(strconv.FormatInt(val, base)))
-}
-
-// printUint outputs an unsigned integer value to Writer w.
-func printUint(w io.Writer, val uint64, base int) {
-	w.Write([]byte(strconv.FormatUint(val, base)))
-}
-
-// printFloat outputs a floating point value using the specified precision,
-// which is expected to be 32 or 64bit, to Writer w.
-func printFloat(w io.Writer, val float64, precision int) {
-	w.Write([]byte(strconv.FormatFloat(val, 'g', -1, precision)))
-}
-
-// printComplex outputs a complex value using the specified float precision
-// for the real and imaginary parts to Writer w.
-func printComplex(w io.Writer, c complex128, floatPrecision int) {
-	r := real(c)
-	w.Write(openParenBytes)
-	w.Write([]byte(strconv.FormatFloat(r, 'g', -1, floatPrecision)))
-	i := imag(c)
-	if i >= 0 {
-		w.Write(plusBytes)
-	}
-	w.Write([]byte(strconv.FormatFloat(i, 'g', -1, floatPrecision)))
-	w.Write(iBytes)
-	w.Write(closeParenBytes)
-}
-
-// printHexPtr outputs a uintptr formatted as hexidecimal with a leading '0x'
-// prefix to Writer w.
-func printHexPtr(w io.Writer, p uintptr) {
-	// Null pointer.
-	num := uint64(p)
-	if num == 0 {
-		w.Write(nilAngleBytes)
-		return
-	}
-
-	// Max uint64 is 16 bytes in hex + 2 bytes for '0x' prefix
-	buf := make([]byte, 18)
-
-	// It's simpler to construct the hex string right to left.
-	base := uint64(16)
-	i := len(buf) - 1
-	for num >= base {
-		buf[i] = hexDigits[num%base]
-		num /= base
-		i--
-	}
-	buf[i] = hexDigits[num]
-
-	// Add '0x' prefix.
-	i--
-	buf[i] = 'x'
-	i--
-	buf[i] = '0'
-
-	// Strip unused leading bytes.
-	buf = buf[i:]
-	w.Write(buf)
-}
-
-// valuesSorter implements sort.Interface to allow a slice of reflect.Value
-// elements to be sorted.
-type valuesSorter struct {
-	values  []reflect.Value
-	strings []string // either nil or same len and values
-	cs      *ConfigState
-}
-
-// newValuesSorter initializes a valuesSorter instance, which holds a set of
-// surrogate keys on which the data should be sorted.  It uses flags in
-// ConfigState to decide if and how to populate those surrogate keys.
-func newValuesSorter(values []reflect.Value, cs *ConfigState) sort.Interface {
-	vs := &valuesSorter{values: values, cs: cs}
-	if canSortSimply(vs.values[0].Kind()) {
-		return vs
-	}
-	if !cs.DisableMethods {
-		vs.strings = make([]string, len(values))
-		for i := range vs.values {
-			b := bytes.Buffer{}
-			if !handleMethods(cs, &b, vs.values[i]) {
-				vs.strings = nil
-				break
-			}
-			vs.strings[i] = b.String()
-		}
-	}
-	if vs.strings == nil && cs.SpewKeys {
-		vs.strings = make([]string, len(values))
-		for i := range vs.values {
-			vs.strings[i] = Sprintf("%#v", vs.values[i].Interface())
-		}
-	}
-	return vs
-}
-
-// canSortSimply tests whether a reflect.Kind is a primitive that can be sorted
-// directly, or whether it should be considered for sorting by surrogate keys
-// (if the ConfigState allows it).
-func canSortSimply(kind reflect.Kind) bool {
-	// This switch parallels valueSortLess, except for the default case.
-	switch kind {
-	case reflect.Bool:
-		return true
-	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
-		return true
-	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
-		return true
-	case reflect.Float32, reflect.Float64:
-		return true
-	case reflect.String:
-		return true
-	case reflect.Uintptr:
-		return true
-	case reflect.Array:
-		return true
-	}
-	return false
-}
-
-// Len returns the number of values in the slice.  It is part of the
-// sort.Interface implementation.
-func (s *valuesSorter) Len() int {
-	return len(s.values)
-}
-
-// Swap swaps the values at the passed indices.  It is part of the
-// sort.Interface implementation.
-func (s *valuesSorter) Swap(i, j int) {
-	s.values[i], s.values[j] = s.values[j], s.values[i]
-	if s.strings != nil {
-		s.strings[i], s.strings[j] = s.strings[j], s.strings[i]
-	}
-}
-
-// valueSortLess returns whether the first value should sort before the second
-// value.  It is used by valueSorter.Less as part of the sort.Interface
-// implementation.
-func valueSortLess(a, b reflect.Value) bool {
-	switch a.Kind() {
-	case reflect.Bool:
-		return !a.Bool() && b.Bool()
-	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
-		return a.Int() < b.Int()
-	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
-		return a.Uint() < b.Uint()
-	case reflect.Float32, reflect.Float64:
-		return a.Float() < b.Float()
-	case reflect.String:
-		return a.String() < b.String()
-	case reflect.Uintptr:
-		return a.Uint() < b.Uint()
-	case reflect.Array:
-		// Compare the contents of both arrays.
-		l := a.Len()
-		for i := 0; i < l; i++ {
-			av := a.Index(i)
-			bv := b.Index(i)
-			if av.Interface() == bv.Interface() {
-				continue
-			}
-			return valueSortLess(av, bv)
-		}
-	}
-	return a.String() < b.String()
-}
-
-// Less returns whether the value at index i should sort before the
-// value at index j.  It is part of the sort.Interface implementation.
-func (s *valuesSorter) Less(i, j int) bool {
-	if s.strings == nil {
-		return valueSortLess(s.values[i], s.values[j])
-	}
-	return s.strings[i] < s.strings[j]
-}
-
-// sortValues is a sort function that handles both native types and any type that
-// can be converted to error or Stringer.  Other inputs are sorted according to
-// their Value.String() value to ensure display stability.
-func sortValues(values []reflect.Value, cs *ConfigState) {
-	if len(values) == 0 {
-		return
-	}
-	sort.Sort(newValuesSorter(values, cs))
-}

libnetwork/vendor/github.com/davecgh/go-spew/spew/config.go

@@ -1,306 +0,0 @@
-/*
- * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-package spew
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"os"
-)
-
-// ConfigState houses the configuration options used by spew to format and
-// display values.  There is a global instance, Config, that is used to control
-// all top-level Formatter and Dump functionality.  Each ConfigState instance
-// provides methods equivalent to the top-level functions.
-//
-// The zero value for ConfigState provides no indentation.  You would typically
-// want to set it to a space or a tab.
-//
-// Alternatively, you can use NewDefaultConfig to get a ConfigState instance
-// with default settings.  See the documentation of NewDefaultConfig for default
-// values.
-type ConfigState struct {
-	// Indent specifies the string to use for each indentation level.  The
-	// global config instance that all top-level functions use set this to a
-	// single space by default.  If you would like more indentation, you might
-	// set this to a tab with "\t" or perhaps two spaces with "  ".
-	Indent string
-
-	// MaxDepth controls the maximum number of levels to descend into nested
-	// data structures.  The default, 0, means there is no limit.
-	//
-	// NOTE: Circular data structures are properly detected, so it is not
-	// necessary to set this value unless you specifically want to limit deeply
-	// nested data structures.
-	MaxDepth int
-
-	// DisableMethods specifies whether or not error and Stringer interfaces are
-	// invoked for types that implement them.
-	DisableMethods bool
-
-	// DisablePointerMethods specifies whether or not to check for and invoke
-	// error and Stringer interfaces on types which only accept a pointer
-	// receiver when the current type is not a pointer.
-	//
-	// NOTE: This might be an unsafe action since calling one of these methods
-	// with a pointer receiver could technically mutate the value, however,
-	// in practice, types which choose to satisify an error or Stringer
-	// interface with a pointer receiver should not be mutating their state
-	// inside these interface methods.  As a result, this option relies on
-	// access to the unsafe package, so it will not have any effect when
-	// running in environments without access to the unsafe package such as
-	// Google App Engine or with the "safe" build tag specified.
-	DisablePointerMethods bool
-
-	// DisablePointerAddresses specifies whether to disable the printing of
-	// pointer addresses. This is useful when diffing data structures in tests.
-	DisablePointerAddresses bool
-
-	// DisableCapacities specifies whether to disable the printing of capacities
-	// for arrays, slices, maps and channels. This is useful when diffing
-	// data structures in tests.
-	DisableCapacities bool
-
-	// ContinueOnMethod specifies whether or not recursion should continue once
-	// a custom error or Stringer interface is invoked.  The default, false,
-	// means it will print the results of invoking the custom error or Stringer
-	// interface and return immediately instead of continuing to recurse into
-	// the internals of the data type.
-	//
-	// NOTE: This flag does not have any effect if method invocation is disabled
-	// via the DisableMethods or DisablePointerMethods options.
-	ContinueOnMethod bool
-
-	// SortKeys specifies map keys should be sorted before being printed. Use
-	// this to have a more deterministic, diffable output.  Note that only
-	// native types (bool, int, uint, floats, uintptr and string) and types
-	// that support the error or Stringer interfaces (if methods are
-	// enabled) are supported, with other types sorted according to the
-	// reflect.Value.String() output which guarantees display stability.
-	SortKeys bool
-
-	// SpewKeys specifies that, as a last resort attempt, map keys should
-	// be spewed to strings and sorted by those strings.  This is only
-	// considered if SortKeys is true.
-	SpewKeys bool
-}
-
-// Config is the active configuration of the top-level functions.
-// The configuration can be changed by modifying the contents of spew.Config.
-var Config = ConfigState{Indent: " "}
-
-// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the formatted string as a value that satisfies error.  See NewFormatter
-// for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Errorf(format, c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Errorf(format string, a ...interface{}) (err error) {
-	return fmt.Errorf(format, c.convertArgs(a)...)
-}
-
-// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Fprint(w, c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Fprint(w io.Writer, a ...interface{}) (n int, err error) {
-	return fmt.Fprint(w, c.convertArgs(a)...)
-}
-
-// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Fprintf(w, format, c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
-	return fmt.Fprintf(w, format, c.convertArgs(a)...)
-}
-
-// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
-// passed with a Formatter interface returned by c.NewFormatter.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Fprintln(w, c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
-	return fmt.Fprintln(w, c.convertArgs(a)...)
-}
-
-// Print is a wrapper for fmt.Print that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Print(c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Print(a ...interface{}) (n int, err error) {
-	return fmt.Print(c.convertArgs(a)...)
-}
-
-// Printf is a wrapper for fmt.Printf that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Printf(format, c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Printf(format string, a ...interface{}) (n int, err error) {
-	return fmt.Printf(format, c.convertArgs(a)...)
-}
-
-// Println is a wrapper for fmt.Println that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Println(c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Println(a ...interface{}) (n int, err error) {
-	return fmt.Println(c.convertArgs(a)...)
-}
-
-// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the resulting string.  See NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Sprint(c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Sprint(a ...interface{}) string {
-	return fmt.Sprint(c.convertArgs(a)...)
-}
-
-// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the resulting string.  See NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Sprintf(format, c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Sprintf(format string, a ...interface{}) string {
-	return fmt.Sprintf(format, c.convertArgs(a)...)
-}
-
-// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
-// were passed with a Formatter interface returned by c.NewFormatter.  It
-// returns the resulting string.  See NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Sprintln(c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Sprintln(a ...interface{}) string {
-	return fmt.Sprintln(c.convertArgs(a)...)
-}
-
-/*
-NewFormatter returns a custom formatter that satisfies the fmt.Formatter
-interface.  As a result, it integrates cleanly with standard fmt package
-printing functions.  The formatter is useful for inline printing of smaller data
-types similar to the standard %v format specifier.
-
-The custom formatter only responds to the %v (most compact), %+v (adds pointer
-addresses), %#v (adds types), and %#+v (adds types and pointer addresses) verb
-combinations.  Any other verbs such as %x and %q will be sent to the the
-standard fmt package for formatting.  In addition, the custom formatter ignores
-the width and precision arguments (however they will still work on the format
-specifiers not handled by the custom formatter).
-
-Typically this function shouldn't be called directly.  It is much easier to make
-use of the custom formatter by calling one of the convenience functions such as
-c.Printf, c.Println, or c.Printf.
-*/
-func (c *ConfigState) NewFormatter(v interface{}) fmt.Formatter {
-	return newFormatter(c, v)
-}
-
-// Fdump formats and displays the passed arguments to io.Writer w.  It formats
-// exactly the same as Dump.
-func (c *ConfigState) Fdump(w io.Writer, a ...interface{}) {
-	fdump(c, w, a...)
-}
-
-/*
-Dump displays the passed parameters to standard out with newlines, customizable
-indentation, and additional debug information such as complete types and all
-pointer addresses used to indirect to the final value.  It provides the
-following features over the built-in printing facilities provided by the fmt
-package:
-
-	* Pointers are dereferenced and followed
-	* Circular data structures are detected and handled properly
-	* Custom Stringer/error interfaces are optionally invoked, including
-	  on unexported types
-	* Custom types which only implement the Stringer/error interfaces via
-	  a pointer receiver are optionally invoked when passing non-pointer
-	  variables
-	* Byte arrays and slices are dumped like the hexdump -C command which
-	  includes offsets, byte values in hex, and ASCII output
-
-The configuration options are controlled by modifying the public members
-of c.  See ConfigState for options documentation.
-
-See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
-get the formatted result as a string.
-*/
-func (c *ConfigState) Dump(a ...interface{}) {
-	fdump(c, os.Stdout, a...)
-}
-
-// Sdump returns a string with the passed arguments formatted exactly the same
-// as Dump.
-func (c *ConfigState) Sdump(a ...interface{}) string {
-	var buf bytes.Buffer
-	fdump(c, &buf, a...)
-	return buf.String()
-}
-
-// convertArgs accepts a slice of arguments and returns a slice of the same
-// length with each argument converted to a spew Formatter interface using
-// the ConfigState associated with s.
-func (c *ConfigState) convertArgs(args []interface{}) (formatters []interface{}) {
-	formatters = make([]interface{}, len(args))
-	for index, arg := range args {
-		formatters[index] = newFormatter(c, arg)
-	}
-	return formatters
-}
-
-// NewDefaultConfig returns a ConfigState with the following default settings.
-//
-// 	Indent: " "
-// 	MaxDepth: 0
-// 	DisableMethods: false
-// 	DisablePointerMethods: false
-// 	ContinueOnMethod: false
-// 	SortKeys: false
-func NewDefaultConfig() *ConfigState {
-	return &ConfigState{Indent: " "}
-}

libnetwork/vendor/github.com/davecgh/go-spew/spew/doc.go

@@ -1,211 +0,0 @@
-/*
- * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-/*
-Package spew implements a deep pretty printer for Go data structures to aid in
-debugging.
-
-A quick overview of the additional features spew provides over the built-in
-printing facilities for Go data types are as follows:
-
-	* Pointers are dereferenced and followed
-	* Circular data structures are detected and handled properly
-	* Custom Stringer/error interfaces are optionally invoked, including
-	  on unexported types
-	* Custom types which only implement the Stringer/error interfaces via
-	  a pointer receiver are optionally invoked when passing non-pointer
-	  variables
-	* Byte arrays and slices are dumped like the hexdump -C command which
-	  includes offsets, byte values in hex, and ASCII output (only when using
-	  Dump style)
-
-There are two different approaches spew allows for dumping Go data structures:
-
-	* Dump style which prints with newlines, customizable indentation,
-	  and additional debug information such as types and all pointer addresses
-	  used to indirect to the final value
-	* A custom Formatter interface that integrates cleanly with the standard fmt
-	  package and replaces %v, %+v, %#v, and %#+v to provide inline printing
-	  similar to the default %v while providing the additional functionality
-	  outlined above and passing unsupported format verbs such as %x and %q
-	  along to fmt
-
-Quick Start
-
-This section demonstrates how to quickly get started with spew.  See the
-sections below for further details on formatting and configuration options.
-
-To dump a variable with full newlines, indentation, type, and pointer
-information use Dump, Fdump, or Sdump:
-	spew.Dump(myVar1, myVar2, ...)
-	spew.Fdump(someWriter, myVar1, myVar2, ...)
-	str := spew.Sdump(myVar1, myVar2, ...)
-
-Alternatively, if you would prefer to use format strings with a compacted inline
-printing style, use the convenience wrappers Printf, Fprintf, etc with
-%v (most compact), %+v (adds pointer addresses), %#v (adds types), or
-%#+v (adds types and pointer addresses):
-	spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
-	spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
-	spew.Fprintf(someWriter, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
-	spew.Fprintf(someWriter, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
-
-Configuration Options
-
-Configuration of spew is handled by fields in the ConfigState type.  For
-convenience, all of the top-level functions use a global state available
-via the spew.Config global.
-
-It is also possible to create a ConfigState instance that provides methods
-equivalent to the top-level functions.  This allows concurrent configuration
-options.  See the ConfigState documentation for more details.
-
-The following configuration options are available:
-	* Indent
-		String to use for each indentation level for Dump functions.
-		It is a single space by default.  A popular alternative is "\t".
-
-	* MaxDepth
-		Maximum number of levels to descend into nested data structures.
-		There is no limit by default.
-
-	* DisableMethods
-		Disables invocation of error and Stringer interface methods.
-		Method invocation is enabled by default.
-
-	* DisablePointerMethods
-		Disables invocation of error and Stringer interface methods on types
-		which only accept pointer receivers from non-pointer variables.
-		Pointer method invocation is enabled by default.
-
-	* DisablePointerAddresses
-		DisablePointerAddresses specifies whether to disable the printing of
-		pointer addresses. This is useful when diffing data structures in tests.
-
-	* DisableCapacities
-		DisableCapacities specifies whether to disable the printing of
-		capacities for arrays, slices, maps and channels. This is useful when
-		diffing data structures in tests.
-
-	* ContinueOnMethod
-		Enables recursion into types after invoking error and Stringer interface
-		methods. Recursion after method invocation is disabled by default.
-
-	* SortKeys
-		Specifies map keys should be sorted before being printed. Use
-		this to have a more deterministic, diffable output.  Note that
-		only native types (bool, int, uint, floats, uintptr and string)
-		and types which implement error or Stringer interfaces are
-		supported with other types sorted according to the
-		reflect.Value.String() output which guarantees display
-		stability.  Natural map order is used by default.
-
-	* SpewKeys
-		Specifies that, as a last resort attempt, map keys should be
-		spewed to strings and sorted by those strings.  This is only
-		considered if SortKeys is true.
-
-Dump Usage
-
-Simply call spew.Dump with a list of variables you want to dump:
-
-	spew.Dump(myVar1, myVar2, ...)
-
-You may also call spew.Fdump if you would prefer to output to an arbitrary
-io.Writer.  For example, to dump to standard error:
-
-	spew.Fdump(os.Stderr, myVar1, myVar2, ...)
-
-A third option is to call spew.Sdump to get the formatted output as a string:
-
-	str := spew.Sdump(myVar1, myVar2, ...)
-
-Sample Dump Output
-
-See the Dump example for details on the setup of the types and variables being
-shown here.
-
-	(main.Foo) {
-	 unexportedField: (*main.Bar)(0xf84002e210)({
-	  flag: (main.Flag) flagTwo,
-	  data: (uintptr) <nil>
-	 }),
-	 ExportedField: (map[interface {}]interface {}) (len=1) {
-	  (string) (len=3) "one": (bool) true
-	 }
-	}
-
-Byte (and uint8) arrays and slices are displayed uniquely like the hexdump -C
-command as shown.
-	([]uint8) (len=32 cap=32) {
-	 00000000  11 12 13 14 15 16 17 18  19 1a 1b 1c 1d 1e 1f 20  |............... |
-	 00000010  21 22 23 24 25 26 27 28  29 2a 2b 2c 2d 2e 2f 30  |!"#$%&'()*+,-./0|
-	 00000020  31 32                                             |12|
-	}
-
-Custom Formatter
-
-Spew provides a custom formatter that implements the fmt.Formatter interface
-so that it integrates cleanly with standard fmt package printing functions. The
-formatter is useful for inline printing of smaller data types similar to the
-standard %v format specifier.
-
-The custom formatter only responds to the %v (most compact), %+v (adds pointer
-addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
-combinations.  Any other verbs such as %x and %q will be sent to the the
-standard fmt package for formatting.  In addition, the custom formatter ignores
-the width and precision arguments (however they will still work on the format
-specifiers not handled by the custom formatter).
-
-Custom Formatter Usage
-
-The simplest way to make use of the spew custom formatter is to call one of the
-convenience functions such as spew.Printf, spew.Println, or spew.Printf.  The
-functions have syntax you are most likely already familiar with:
-
-	spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
-	spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
-	spew.Println(myVar, myVar2)
-	spew.Fprintf(os.Stderr, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
-	spew.Fprintf(os.Stderr, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
-
-See the Index for the full list convenience functions.
-
-Sample Formatter Output
-
-Double pointer to a uint8:
-	  %v: <**>5
-	 %+v: <**>(0xf8400420d0->0xf8400420c8)5
-	 %#v: (**uint8)5
-	%#+v: (**uint8)(0xf8400420d0->0xf8400420c8)5
-
-Pointer to circular struct with a uint8 field and a pointer to itself:
-	  %v: <*>{1 <*><shown>}
-	 %+v: <*>(0xf84003e260){ui8:1 c:<*>(0xf84003e260)<shown>}
-	 %#v: (*main.circular){ui8:(uint8)1 c:(*main.circular)<shown>}
-	%#+v: (*main.circular)(0xf84003e260){ui8:(uint8)1 c:(*main.circular)(0xf84003e260)<shown>}
-
-See the Printf example for details on the setup of variables being shown
-here.
-
-Errors
-
-Since it is possible for custom Stringer/error interfaces to panic, spew
-detects them and handles them internally by printing the panic information
-inline with the output.  Since spew is intended to provide deep pretty printing
-capabilities on structures, it intentionally does not return any errors.
-*/
-package spew

libnetwork/vendor/github.com/davecgh/go-spew/spew/dump.go

@@ -1,509 +0,0 @@
-/*
- * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-package spew
-
-import (
-	"bytes"
-	"encoding/hex"
-	"fmt"
-	"io"
-	"os"
-	"reflect"
-	"regexp"
-	"strconv"
-	"strings"
-)
-
-var (
-	// uint8Type is a reflect.Type representing a uint8.  It is used to
-	// convert cgo types to uint8 slices for hexdumping.
-	uint8Type = reflect.TypeOf(uint8(0))
-
-	// cCharRE is a regular expression that matches a cgo char.
-	// It is used to detect character arrays to hexdump them.
-	cCharRE = regexp.MustCompile("^.*\\._Ctype_char$")
-
-	// cUnsignedCharRE is a regular expression that matches a cgo unsigned
-	// char.  It is used to detect unsigned character arrays to hexdump
-	// them.
-	cUnsignedCharRE = regexp.MustCompile("^.*\\._Ctype_unsignedchar$")
-
-	// cUint8tCharRE is a regular expression that matches a cgo uint8_t.
-	// It is used to detect uint8_t arrays to hexdump them.
-	cUint8tCharRE = regexp.MustCompile("^.*\\._Ctype_uint8_t$")
-)
-
-// dumpState contains information about the state of a dump operation.
-type dumpState struct {
-	w                io.Writer
-	depth            int
-	pointers         map[uintptr]int
-	ignoreNextType   bool
-	ignoreNextIndent bool
-	cs               *ConfigState
-}
-
-// indent performs indentation according to the depth level and cs.Indent
-// option.
-func (d *dumpState) indent() {
-	if d.ignoreNextIndent {
-		d.ignoreNextIndent = false
-		return
-	}
-	d.w.Write(bytes.Repeat([]byte(d.cs.Indent), d.depth))
-}
-
-// unpackValue returns values inside of non-nil interfaces when possible.
-// This is useful for data types like structs, arrays, slices, and maps which
-// can contain varying types packed inside an interface.
-func (d *dumpState) unpackValue(v reflect.Value) reflect.Value {
-	if v.Kind() == reflect.Interface && !v.IsNil() {
-		v = v.Elem()
-	}
-	return v
-}
-
-// dumpPtr handles formatting of pointers by indirecting them as necessary.
-func (d *dumpState) dumpPtr(v reflect.Value) {
-	// Remove pointers at or below the current depth from map used to detect
-	// circular refs.
-	for k, depth := range d.pointers {
-		if depth >= d.depth {
-			delete(d.pointers, k)
-		}
-	}
-
-	// Keep list of all dereferenced pointers to show later.
-	pointerChain := make([]uintptr, 0)
-
-	// Figure out how many levels of indirection there are by dereferencing
-	// pointers and unpacking interfaces down the chain while detecting circular
-	// references.
-	nilFound := false
-	cycleFound := false
-	indirects := 0
-	ve := v
-	for ve.Kind() == reflect.Ptr {
-		if ve.IsNil() {
-			nilFound = true
-			break
-		}
-		indirects++
-		addr := ve.Pointer()
-		pointerChain = append(pointerChain, addr)
-		if pd, ok := d.pointers[addr]; ok && pd < d.depth {
-			cycleFound = true
-			indirects--
-			break
-		}
-		d.pointers[addr] = d.depth
-
-		ve = ve.Elem()
-		if ve.Kind() == reflect.Interface {
-			if ve.IsNil() {
-				nilFound = true
-				break
-			}
-			ve = ve.Elem()
-		}
-	}
-
-	// Display type information.
-	d.w.Write(openParenBytes)
-	d.w.Write(bytes.Repeat(asteriskBytes, indirects))
-	d.w.Write([]byte(ve.Type().String()))
-	d.w.Write(closeParenBytes)
-
-	// Display pointer information.
-	if !d.cs.DisablePointerAddresses && len(pointerChain) > 0 {
-		d.w.Write(openParenBytes)
-		for i, addr := range pointerChain {
-			if i > 0 {
-				d.w.Write(pointerChainBytes)
-			}
-			printHexPtr(d.w, addr)
-		}
-		d.w.Write(closeParenBytes)
-	}
-
-	// Display dereferenced value.
-	d.w.Write(openParenBytes)
-	switch {
-	case nilFound == true:
-		d.w.Write(nilAngleBytes)
-
-	case cycleFound == true:
-		d.w.Write(circularBytes)
-
-	default:
-		d.ignoreNextType = true
-		d.dump(ve)
-	}
-	d.w.Write(closeParenBytes)
-}
-
-// dumpSlice handles formatting of arrays and slices.  Byte (uint8 under
-// reflection) arrays and slices are dumped in hexdump -C fashion.
-func (d *dumpState) dumpSlice(v reflect.Value) {
-	// Determine whether this type should be hex dumped or not.  Also,
-	// for types which should be hexdumped, try to use the underlying data
-	// first, then fall back to trying to convert them to a uint8 slice.
-	var buf []uint8
-	doConvert := false
-	doHexDump := false
-	numEntries := v.Len()
-	if numEntries > 0 {
-		vt := v.Index(0).Type()
-		vts := vt.String()
-		switch {
-		// C types that need to be converted.
-		case cCharRE.MatchString(vts):
-			fallthrough
-		case cUnsignedCharRE.MatchString(vts):
-			fallthrough
-		case cUint8tCharRE.MatchString(vts):
-			doConvert = true
-
-		// Try to use existing uint8 slices and fall back to converting
-		// and copying if that fails.
-		case vt.Kind() == reflect.Uint8:
-			// We need an addressable interface to convert the type
-			// to a byte slice.  However, the reflect package won't
-			// give us an interface on certain things like
-			// unexported struct fields in order to enforce
-			// visibility rules.  We use unsafe, when available, to
-			// bypass these restrictions since this package does not
-			// mutate the values.
-			vs := v
-			if !vs.CanInterface() || !vs.CanAddr() {
-				vs = unsafeReflectValue(vs)
-			}
-			if !UnsafeDisabled {
-				vs = vs.Slice(0, numEntries)
-
-				// Use the existing uint8 slice if it can be
-				// type asserted.
-				iface := vs.Interface()
-				if slice, ok := iface.([]uint8); ok {
-					buf = slice
-					doHexDump = true
-					break
-				}
-			}
-
-			// The underlying data needs to be converted if it can't
-			// be type asserted to a uint8 slice.
-			doConvert = true
-		}
-
-		// Copy and convert the underlying type if needed.
-		if doConvert && vt.ConvertibleTo(uint8Type) {
-			// Convert and copy each element into a uint8 byte
-			// slice.
-			buf = make([]uint8, numEntries)
-			for i := 0; i < numEntries; i++ {
-				vv := v.Index(i)
-				buf[i] = uint8(vv.Convert(uint8Type).Uint())
-			}
-			doHexDump = true
-		}
-	}
-
-	// Hexdump the entire slice as needed.
-	if doHexDump {
-		indent := strings.Repeat(d.cs.Indent, d.depth)
-		str := indent + hex.Dump(buf)
-		str = strings.Replace(str, "\n", "\n"+indent, -1)
-		str = strings.TrimRight(str, d.cs.Indent)
-		d.w.Write([]byte(str))
-		return
-	}
-
-	// Recursively call dump for each item.
-	for i := 0; i < numEntries; i++ {
-		d.dump(d.unpackValue(v.Index(i)))
-		if i < (numEntries - 1) {
-			d.w.Write(commaNewlineBytes)
-		} else {
-			d.w.Write(newlineBytes)
-		}
-	}
-}
-
-// dump is the main workhorse for dumping a value.  It uses the passed reflect
-// value to figure out what kind of object we are dealing with and formats it
-// appropriately.  It is a recursive function, however circular data structures
-// are detected and handled properly.
-func (d *dumpState) dump(v reflect.Value) {
-	// Handle invalid reflect values immediately.
-	kind := v.Kind()
-	if kind == reflect.Invalid {
-		d.w.Write(invalidAngleBytes)
-		return
-	}
-
-	// Handle pointers specially.
-	if kind == reflect.Ptr {
-		d.indent()
-		d.dumpPtr(v)
-		return
-	}
-
-	// Print type information unless already handled elsewhere.
-	if !d.ignoreNextType {
-		d.indent()
-		d.w.Write(openParenBytes)
-		d.w.Write([]byte(v.Type().String()))
-		d.w.Write(closeParenBytes)
-		d.w.Write(spaceBytes)
-	}
-	d.ignoreNextType = false
-
-	// Display length and capacity if the built-in len and cap functions
-	// work with the value's kind and the len/cap itself is non-zero.
-	valueLen, valueCap := 0, 0
-	switch v.Kind() {
-	case reflect.Array, reflect.Slice, reflect.Chan:
-		valueLen, valueCap = v.Len(), v.Cap()
-	case reflect.Map, reflect.String:
-		valueLen = v.Len()
-	}
-	if valueLen != 0 || !d.cs.DisableCapacities && valueCap != 0 {
-		d.w.Write(openParenBytes)
-		if valueLen != 0 {
-			d.w.Write(lenEqualsBytes)
-			printInt(d.w, int64(valueLen), 10)
-		}
-		if !d.cs.DisableCapacities && valueCap != 0 {
-			if valueLen != 0 {
-				d.w.Write(spaceBytes)
-			}
-			d.w.Write(capEqualsBytes)
-			printInt(d.w, int64(valueCap), 10)
-		}
-		d.w.Write(closeParenBytes)
-		d.w.Write(spaceBytes)
-	}
-
-	// Call Stringer/error interfaces if they exist and the handle methods flag
-	// is enabled
-	if !d.cs.DisableMethods {
-		if (kind != reflect.Invalid) && (kind != reflect.Interface) {
-			if handled := handleMethods(d.cs, d.w, v); handled {
-				return
-			}
-		}
-	}
-
-	switch kind {
-	case reflect.Invalid:
-		// Do nothing.  We should never get here since invalid has already
-		// been handled above.
-
-	case reflect.Bool:
-		printBool(d.w, v.Bool())
-
-	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
-		printInt(d.w, v.Int(), 10)
-
-	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
-		printUint(d.w, v.Uint(), 10)
-
-	case reflect.Float32:
-		printFloat(d.w, v.Float(), 32)
-
-	case reflect.Float64:
-		printFloat(d.w, v.Float(), 64)
-
-	case reflect.Complex64:
-		printComplex(d.w, v.Complex(), 32)
-
-	case reflect.Complex128:
-		printComplex(d.w, v.Complex(), 64)
-
-	case reflect.Slice:
-		if v.IsNil() {
-			d.w.Write(nilAngleBytes)
-			break
-		}
-		fallthrough
-
-	case reflect.Array:
-		d.w.Write(openBraceNewlineBytes)
-		d.depth++
-		if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
-			d.indent()
-			d.w.Write(maxNewlineBytes)
-		} else {
-			d.dumpSlice(v)
-		}
-		d.depth--
-		d.indent()
-		d.w.Write(closeBraceBytes)
-
-	case reflect.String:
-		d.w.Write([]byte(strconv.Quote(v.String())))
-
-	case reflect.Interface:
-		// The only time we should get here is for nil interfaces due to
-		// unpackValue calls.
-		if v.IsNil() {
-			d.w.Write(nilAngleBytes)
-		}
-
-	case reflect.Ptr:
-		// Do nothing.  We should never get here since pointers have already
-		// been handled above.
-
-	case reflect.Map:
-		// nil maps should be indicated as different than empty maps
-		if v.IsNil() {
-			d.w.Write(nilAngleBytes)
-			break
-		}
-
-		d.w.Write(openBraceNewlineBytes)
-		d.depth++
-		if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
-			d.indent()
-			d.w.Write(maxNewlineBytes)
-		} else {
-			numEntries := v.Len()
-			keys := v.MapKeys()
-			if d.cs.SortKeys {
-				sortValues(keys, d.cs)
-			}
-			for i, key := range keys {
-				d.dump(d.unpackValue(key))
-				d.w.Write(colonSpaceBytes)
-				d.ignoreNextIndent = true
-				d.dump(d.unpackValue(v.MapIndex(key)))
-				if i < (numEntries - 1) {
-					d.w.Write(commaNewlineBytes)
-				} else {
-					d.w.Write(newlineBytes)
-				}
-			}
-		}
-		d.depth--
-		d.indent()
-		d.w.Write(closeBraceBytes)
-
-	case reflect.Struct:
-		d.w.Write(openBraceNewlineBytes)
-		d.depth++
-		if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
-			d.indent()
-			d.w.Write(maxNewlineBytes)
-		} else {
-			vt := v.Type()
-			numFields := v.NumField()
-			for i := 0; i < numFields; i++ {
-				d.indent()
-				vtf := vt.Field(i)
-				d.w.Write([]byte(vtf.Name))
-				d.w.Write(colonSpaceBytes)
-				d.ignoreNextIndent = true
-				d.dump(d.unpackValue(v.Field(i)))
-				if i < (numFields - 1) {
-					d.w.Write(commaNewlineBytes)
-				} else {
-					d.w.Write(newlineBytes)
-				}
-			}
-		}
-		d.depth--
-		d.indent()
-		d.w.Write(closeBraceBytes)
-
-	case reflect.Uintptr:
-		printHexPtr(d.w, uintptr(v.Uint()))
-
-	case reflect.UnsafePointer, reflect.Chan, reflect.Func:
-		printHexPtr(d.w, v.Pointer())
-
-	// There were not any other types at the time this code was written, but
-	// fall back to letting the default fmt package handle it in case any new
-	// types are added.
-	default:
-		if v.CanInterface() {
-			fmt.Fprintf(d.w, "%v", v.Interface())
-		} else {
-			fmt.Fprintf(d.w, "%v", v.String())
-		}
-	}
-}
-
-// fdump is a helper function to consolidate the logic from the various public
-// methods which take varying writers and config states.
-func fdump(cs *ConfigState, w io.Writer, a ...interface{}) {
-	for _, arg := range a {
-		if arg == nil {
-			w.Write(interfaceBytes)
-			w.Write(spaceBytes)
-			w.Write(nilAngleBytes)
-			w.Write(newlineBytes)
-			continue
-		}
-
-		d := dumpState{w: w, cs: cs}
-		d.pointers = make(map[uintptr]int)
-		d.dump(reflect.ValueOf(arg))
-		d.w.Write(newlineBytes)
-	}
-}
-
-// Fdump formats and displays the passed arguments to io.Writer w.  It formats
-// exactly the same as Dump.
-func Fdump(w io.Writer, a ...interface{}) {
-	fdump(&Config, w, a...)
-}
-
-// Sdump returns a string with the passed arguments formatted exactly the same
-// as Dump.
-func Sdump(a ...interface{}) string {
-	var buf bytes.Buffer
-	fdump(&Config, &buf, a...)
-	return buf.String()
-}
-
-/*
-Dump displays the passed parameters to standard out with newlines, customizable
-indentation, and additional debug information such as complete types and all
-pointer addresses used to indirect to the final value.  It provides the
-following features over the built-in printing facilities provided by the fmt
-package:
-
-	* Pointers are dereferenced and followed
-	* Circular data structures are detected and handled properly
-	* Custom Stringer/error interfaces are optionally invoked, including
-	  on unexported types
-	* Custom types which only implement the Stringer/error interfaces via
-	  a pointer receiver are optionally invoked when passing non-pointer
-	  variables
-	* Byte arrays and slices are dumped like the hexdump -C command which
-	  includes offsets, byte values in hex, and ASCII output
-
-The configuration options are controlled by an exported package global,
-spew.Config.  See ConfigState for options documentation.
-
-See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
-get the formatted result as a string.
-*/
-func Dump(a ...interface{}) {
-	fdump(&Config, os.Stdout, a...)
-}

libnetwork/vendor/github.com/davecgh/go-spew/spew/format.go

@@ -1,419 +0,0 @@
-/*
- * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-package spew
-
-import (
-	"bytes"
-	"fmt"
-	"reflect"
-	"strconv"
-	"strings"
-)
-
-// supportedFlags is a list of all the character flags supported by fmt package.
-const supportedFlags = "0-+# "
-
-// formatState implements the fmt.Formatter interface and contains information
-// about the state of a formatting operation.  The NewFormatter function can
-// be used to get a new Formatter which can be used directly as arguments
-// in standard fmt package printing calls.
-type formatState struct {
-	value          interface{}
-	fs             fmt.State
-	depth          int
-	pointers       map[uintptr]int
-	ignoreNextType bool
-	cs             *ConfigState
-}
-
-// buildDefaultFormat recreates the original format string without precision
-// and width information to pass in to fmt.Sprintf in the case of an
-// unrecognized type.  Unless new types are added to the language, this
-// function won't ever be called.
-func (f *formatState) buildDefaultFormat() (format string) {
-	buf := bytes.NewBuffer(percentBytes)
-
-	for _, flag := range supportedFlags {
-		if f.fs.Flag(int(flag)) {
-			buf.WriteRune(flag)
-		}
-	}
-
-	buf.WriteRune('v')
-
-	format = buf.String()
-	return format
-}
-
-// constructOrigFormat recreates the original format string including precision
-// and width information to pass along to the standard fmt package.  This allows
-// automatic deferral of all format strings this package doesn't support.
-func (f *formatState) constructOrigFormat(verb rune) (format string) {
-	buf := bytes.NewBuffer(percentBytes)
-
-	for _, flag := range supportedFlags {
-		if f.fs.Flag(int(flag)) {
-			buf.WriteRune(flag)
-		}
-	}
-
-	if width, ok := f.fs.Width(); ok {
-		buf.WriteString(strconv.Itoa(width))
-	}
-
-	if precision, ok := f.fs.Precision(); ok {
-		buf.Write(precisionBytes)
-		buf.WriteString(strconv.Itoa(precision))
-	}
-
-	buf.WriteRune(verb)
-
-	format = buf.String()
-	return format
-}
-
-// unpackValue returns values inside of non-nil interfaces when possible and
-// ensures that types for values which have been unpacked from an interface
-// are displayed when the show types flag is also set.
-// This is useful for data types like structs, arrays, slices, and maps which
-// can contain varying types packed inside an interface.
-func (f *formatState) unpackValue(v reflect.Value) reflect.Value {
-	if v.Kind() == reflect.Interface {
-		f.ignoreNextType = false
-		if !v.IsNil() {
-			v = v.Elem()
-		}
-	}
-	return v
-}
-
-// formatPtr handles formatting of pointers by indirecting them as necessary.
-func (f *formatState) formatPtr(v reflect.Value) {
-	// Display nil if top level pointer is nil.
-	showTypes := f.fs.Flag('#')
-	if v.IsNil() && (!showTypes || f.ignoreNextType) {
-		f.fs.Write(nilAngleBytes)
-		return
-	}
-
-	// Remove pointers at or below the current depth from map used to detect
-	// circular refs.
-	for k, depth := range f.pointers {
-		if depth >= f.depth {
-			delete(f.pointers, k)
-		}
-	}
-
-	// Keep list of all dereferenced pointers to possibly show later.
-	pointerChain := make([]uintptr, 0)
-
-	// Figure out how many levels of indirection there are by derferencing
-	// pointers and unpacking interfaces down the chain while detecting circular
-	// references.
-	nilFound := false
-	cycleFound := false
-	indirects := 0
-	ve := v
-	for ve.Kind() == reflect.Ptr {
-		if ve.IsNil() {
-			nilFound = true
-			break
-		}
-		indirects++
-		addr := ve.Pointer()
-		pointerChain = append(pointerChain, addr)
-		if pd, ok := f.pointers[addr]; ok && pd < f.depth {
-			cycleFound = true
-			indirects--
-			break
-		}
-		f.pointers[addr] = f.depth
-
-		ve = ve.Elem()
-		if ve.Kind() == reflect.Interface {
-			if ve.IsNil() {
-				nilFound = true
-				break
-			}
-			ve = ve.Elem()
-		}
-	}
-
-	// Display type or indirection level depending on flags.
-	if showTypes && !f.ignoreNextType {
-		f.fs.Write(openParenBytes)
-		f.fs.Write(bytes.Repeat(asteriskBytes, indirects))
-		f.fs.Write([]byte(ve.Type().String()))
-		f.fs.Write(closeParenBytes)
-	} else {
-		if nilFound || cycleFound {
-			indirects += strings.Count(ve.Type().String(), "*")
-		}
-		f.fs.Write(openAngleBytes)
-		f.fs.Write([]byte(strings.Repeat("*", indirects)))
-		f.fs.Write(closeAngleBytes)
-	}
-
-	// Display pointer information depending on flags.
-	if f.fs.Flag('+') && (len(pointerChain) > 0) {
-		f.fs.Write(openParenBytes)
-		for i, addr := range pointerChain {
-			if i > 0 {
-				f.fs.Write(pointerChainBytes)
-			}
-			printHexPtr(f.fs, addr)
-		}
-		f.fs.Write(closeParenBytes)
-	}
-
-	// Display dereferenced value.
-	switch {
-	case nilFound == true:
-		f.fs.Write(nilAngleBytes)
-
-	case cycleFound == true:
-		f.fs.Write(circularShortBytes)
-
-	default:
-		f.ignoreNextType = true
-		f.format(ve)
-	}
-}
-
-// format is the main workhorse for providing the Formatter interface.  It
-// uses the passed reflect value to figure out what kind of object we are
-// dealing with and formats it appropriately.  It is a recursive function,
-// however circular data structures are detected and handled properly.
-func (f *formatState) format(v reflect.Value) {
-	// Handle invalid reflect values immediately.
-	kind := v.Kind()
-	if kind == reflect.Invalid {
-		f.fs.Write(invalidAngleBytes)
-		return
-	}
-
-	// Handle pointers specially.
-	if kind == reflect.Ptr {
-		f.formatPtr(v)
-		return
-	}
-
-	// Print type information unless already handled elsewhere.
-	if !f.ignoreNextType && f.fs.Flag('#') {
-		f.fs.Write(openParenBytes)
-		f.fs.Write([]byte(v.Type().String()))
-		f.fs.Write(closeParenBytes)
-	}
-	f.ignoreNextType = false
-
-	// Call Stringer/error interfaces if they exist and the handle methods
-	// flag is enabled.
-	if !f.cs.DisableMethods {
-		if (kind != reflect.Invalid) && (kind != reflect.Interface) {
-			if handled := handleMethods(f.cs, f.fs, v); handled {
-				return
-			}
-		}
-	}
-
-	switch kind {
-	case reflect.Invalid:
-		// Do nothing.  We should never get here since invalid has already
-		// been handled above.
-
-	case reflect.Bool:
-		printBool(f.fs, v.Bool())
-
-	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
-		printInt(f.fs, v.Int(), 10)
-
-	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
-		printUint(f.fs, v.Uint(), 10)
-
-	case reflect.Float32:
-		printFloat(f.fs, v.Float(), 32)
-
-	case reflect.Float64:
-		printFloat(f.fs, v.Float(), 64)
-
-	case reflect.Complex64:
-		printComplex(f.fs, v.Complex(), 32)
-
-	case reflect.Complex128:
-		printComplex(f.fs, v.Complex(), 64)
-
-	case reflect.Slice:
-		if v.IsNil() {
-			f.fs.Write(nilAngleBytes)
-			break
-		}
-		fallthrough
-
-	case reflect.Array:
-		f.fs.Write(openBracketBytes)
-		f.depth++
-		if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
-			f.fs.Write(maxShortBytes)
-		} else {
-			numEntries := v.Len()
-			for i := 0; i < numEntries; i++ {
-				if i > 0 {
-					f.fs.Write(spaceBytes)
-				}
-				f.ignoreNextType = true
-				f.format(f.unpackValue(v.Index(i)))
-			}
-		}
-		f.depth--
-		f.fs.Write(closeBracketBytes)
-
-	case reflect.String:
-		f.fs.Write([]byte(v.String()))
-
-	case reflect.Interface:
-		// The only time we should get here is for nil interfaces due to
-		// unpackValue calls.
-		if v.IsNil() {
-			f.fs.Write(nilAngleBytes)
-		}
-
-	case reflect.Ptr:
-		// Do nothing.  We should never get here since pointers have already
-		// been handled above.
-
-	case reflect.Map:
-		// nil maps should be indicated as different than empty maps
-		if v.IsNil() {
-			f.fs.Write(nilAngleBytes)
-			break
-		}
-
-		f.fs.Write(openMapBytes)
-		f.depth++
-		if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
-			f.fs.Write(maxShortBytes)
-		} else {
-			keys := v.MapKeys()
-			if f.cs.SortKeys {
-				sortValues(keys, f.cs)
-			}
-			for i, key := range keys {
-				if i > 0 {
-					f.fs.Write(spaceBytes)
-				}
-				f.ignoreNextType = true
-				f.format(f.unpackValue(key))
-				f.fs.Write(colonBytes)
-				f.ignoreNextType = true
-				f.format(f.unpackValue(v.MapIndex(key)))
-			}
-		}
-		f.depth--
-		f.fs.Write(closeMapBytes)
-
-	case reflect.Struct:
-		numFields := v.NumField()
-		f.fs.Write(openBraceBytes)
-		f.depth++
-		if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
-			f.fs.Write(maxShortBytes)
-		} else {
-			vt := v.Type()
-			for i := 0; i < numFields; i++ {
-				if i > 0 {
-					f.fs.Write(spaceBytes)
-				}
-				vtf := vt.Field(i)
-				if f.fs.Flag('+') || f.fs.Flag('#') {
-					f.fs.Write([]byte(vtf.Name))
-					f.fs.Write(colonBytes)
-				}
-				f.format(f.unpackValue(v.Field(i)))
-			}
-		}
-		f.depth--
-		f.fs.Write(closeBraceBytes)
-
-	case reflect.Uintptr:
-		printHexPtr(f.fs, uintptr(v.Uint()))
-
-	case reflect.UnsafePointer, reflect.Chan, reflect.Func:
-		printHexPtr(f.fs, v.Pointer())
-
-	// There were not any other types at the time this code was written, but
-	// fall back to letting the default fmt package handle it if any get added.
-	default:
-		format := f.buildDefaultFormat()
-		if v.CanInterface() {
-			fmt.Fprintf(f.fs, format, v.Interface())
-		} else {
-			fmt.Fprintf(f.fs, format, v.String())
-		}
-	}
-}
-
-// Format satisfies the fmt.Formatter interface. See NewFormatter for usage
-// details.
-func (f *formatState) Format(fs fmt.State, verb rune) {
-	f.fs = fs
-
-	// Use standard formatting for verbs that are not v.
-	if verb != 'v' {
-		format := f.constructOrigFormat(verb)
-		fmt.Fprintf(fs, format, f.value)
-		return
-	}
-
-	if f.value == nil {
-		if fs.Flag('#') {
-			fs.Write(interfaceBytes)
-		}
-		fs.Write(nilAngleBytes)
-		return
-	}
-
-	f.format(reflect.ValueOf(f.value))
-}
-
-// newFormatter is a helper function to consolidate the logic from the various
-// public methods which take varying config states.
-func newFormatter(cs *ConfigState, v interface{}) fmt.Formatter {
-	fs := &formatState{value: v, cs: cs}
-	fs.pointers = make(map[uintptr]int)
-	return fs
-}
-
-/*
-NewFormatter returns a custom formatter that satisfies the fmt.Formatter
-interface.  As a result, it integrates cleanly with standard fmt package
-printing functions.  The formatter is useful for inline printing of smaller data
-types similar to the standard %v format specifier.
-
-The custom formatter only responds to the %v (most compact), %+v (adds pointer
-addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
-combinations.  Any other verbs such as %x and %q will be sent to the the
-standard fmt package for formatting.  In addition, the custom formatter ignores
-the width and precision arguments (however they will still work on the format
-specifiers not handled by the custom formatter).
-
-Typically this function shouldn't be called directly.  It is much easier to make
-use of the custom formatter by calling one of the convenience functions such as
-Printf, Println, or Fprintf.
-*/
-func NewFormatter(v interface{}) fmt.Formatter {
-	return newFormatter(&Config, v)
-}

libnetwork/vendor/github.com/davecgh/go-spew/spew/spew.go

@@ -1,148 +0,0 @@
-/*
- * Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-package spew
-
-import (
-	"fmt"
-	"io"
-)
-
-// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the formatted string as a value that satisfies error.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Errorf(format, spew.NewFormatter(a), spew.NewFormatter(b))
-func Errorf(format string, a ...interface{}) (err error) {
-	return fmt.Errorf(format, convertArgs(a)...)
-}
-
-// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Fprint(w, spew.NewFormatter(a), spew.NewFormatter(b))
-func Fprint(w io.Writer, a ...interface{}) (n int, err error) {
-	return fmt.Fprint(w, convertArgs(a)...)
-}
-
-// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Fprintf(w, format, spew.NewFormatter(a), spew.NewFormatter(b))
-func Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
-	return fmt.Fprintf(w, format, convertArgs(a)...)
-}
-
-// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
-// passed with a default Formatter interface returned by NewFormatter.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Fprintln(w, spew.NewFormatter(a), spew.NewFormatter(b))
-func Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
-	return fmt.Fprintln(w, convertArgs(a)...)
-}
-
-// Print is a wrapper for fmt.Print that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Print(spew.NewFormatter(a), spew.NewFormatter(b))
-func Print(a ...interface{}) (n int, err error) {
-	return fmt.Print(convertArgs(a)...)
-}
-
-// Printf is a wrapper for fmt.Printf that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Printf(format, spew.NewFormatter(a), spew.NewFormatter(b))
-func Printf(format string, a ...interface{}) (n int, err error) {
-	return fmt.Printf(format, convertArgs(a)...)
-}
-
-// Println is a wrapper for fmt.Println that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Println(spew.NewFormatter(a), spew.NewFormatter(b))
-func Println(a ...interface{}) (n int, err error) {
-	return fmt.Println(convertArgs(a)...)
-}
-
-// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the resulting string.  See NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Sprint(spew.NewFormatter(a), spew.NewFormatter(b))
-func Sprint(a ...interface{}) string {
-	return fmt.Sprint(convertArgs(a)...)
-}
-
-// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the resulting string.  See NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Sprintf(format, spew.NewFormatter(a), spew.NewFormatter(b))
-func Sprintf(format string, a ...interface{}) string {
-	return fmt.Sprintf(format, convertArgs(a)...)
-}
-
-// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
-// were passed with a default Formatter interface returned by NewFormatter.  It
-// returns the resulting string.  See NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Sprintln(spew.NewFormatter(a), spew.NewFormatter(b))
-func Sprintln(a ...interface{}) string {
-	return fmt.Sprintln(convertArgs(a)...)
-}
-
-// convertArgs accepts a slice of arguments and returns a slice of the same
-// length with each argument converted to a default spew Formatter interface.
-func convertArgs(args []interface{}) (formatters []interface{}) {
-	formatters = make([]interface{}, len(args))
-	for index, arg := range args {
-		formatters[index] = NewFormatter(arg)
-	}
-	return formatters
-}

libnetwork/vendor/github.com/google/go-cmp/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2017 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

libnetwork/vendor/github.com/google/go-cmp/README.md

@@ -0,0 +1,44 @@
+# Package for equality of Go values
+
+[![GoDoc](https://godoc.org/github.com/google/go-cmp/cmp?status.svg)][godoc]
+[![Build Status](https://travis-ci.org/google/go-cmp.svg?branch=master)][travis]
+
+This package is intended to be a more powerful and safer alternative to
+`reflect.DeepEqual` for comparing whether two values are semantically equal.
+
+The primary features of `cmp` are:
+
+* When the default behavior of equality does not suit the needs of the test,
+  custom equality functions can override the equality operation.
+  For example, an equality function may report floats as equal so long as they
+  are within some tolerance of each other.
+
+* Types that have an `Equal` method may use that method to determine equality.
+  This allows package authors to determine the equality operation for the types
+  that they define.
+
+* If no custom equality functions are used and no `Equal` method is defined,
+  equality is determined by recursively comparing the primitive kinds on both
+  values, much like `reflect.DeepEqual`. Unlike `reflect.DeepEqual`, unexported
+  fields are not compared by default; they result in panics unless suppressed
+  by using an `Ignore` option (see `cmpopts.IgnoreUnexported`) or explicitly
+  compared using the `AllowUnexported` option.
+
+See the [GoDoc documentation][godoc] for more information.
+
+This is not an official Google product.
+
+[godoc]: https://godoc.org/github.com/google/go-cmp/cmp
+[travis]: https://travis-ci.org/google/go-cmp
+
+## Install
+
+```
+go get -u github.com/google/go-cmp/cmp
+```
+
+## License
+
+BSD - See [LICENSE][license] file
+
+[license]: https://github.com/google/go-cmp/blob/master/LICENSE

libnetwork/vendor/github.com/google/go-cmp/cmp/compare.go

@@ -0,0 +1,553 @@
+// Copyright 2017, The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE.md file.
+
+// Package cmp determines equality of values.
+//
+// This package is intended to be a more powerful and safer alternative to
+// reflect.DeepEqual for comparing whether two values are semantically equal.
+//
+// The primary features of cmp are:
+//
+// • When the default behavior of equality does not suit the needs of the test,
+// custom equality functions can override the equality operation.
+// For example, an equality function may report floats as equal so long as they
+// are within some tolerance of each other.
+//
+// • Types that have an Equal method may use that method to determine equality.
+// This allows package authors to determine the equality operation for the types
+// that they define.
+//
+// • If no custom equality functions are used and no Equal method is defined,
+// equality is determined by recursively comparing the primitive kinds on both
+// values, much like reflect.DeepEqual. Unlike reflect.DeepEqual, unexported
+// fields are not compared by default; they result in panics unless suppressed
+// by using an Ignore option (see cmpopts.IgnoreUnexported) or explicitly compared
+// using the AllowUnexported option.
+package cmp
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/google/go-cmp/cmp/internal/diff"
+	"github.com/google/go-cmp/cmp/internal/function"
+	"github.com/google/go-cmp/cmp/internal/value"
+)
+
+// BUG(dsnet): Maps with keys containing NaN values cannot be properly compared due to
+// the reflection package's inability to retrieve such entries. Equal will panic
+// anytime it comes across a NaN key, but this behavior may change.
+//
+// See https://golang.org/issue/11104 for more details.
+
+var nothing = reflect.Value{}
+
+// Equal reports whether x and y are equal by recursively applying the
+// following rules in the given order to x and y and all of their sub-values:
+//
+// • If two values are not of the same type, then they are never equal
+// and the overall result is false.
+//
+// • Let S be the set of all Ignore, Transformer, and Comparer options that
+// remain after applying all path filters, value filters, and type filters.
+// If at least one Ignore exists in S, then the comparison is ignored.
+// If the number of Transformer and Comparer options in S is greater than one,
+// then Equal panics because it is ambiguous which option to use.
+// If S contains a single Transformer, then use that to transform the current
+// values and recursively call Equal on the output values.
+// If S contains a single Comparer, then use that to compare the current values.
+// Otherwise, evaluation proceeds to the next rule.
+//
+// • If the values have an Equal method of the form "(T) Equal(T) bool" or
+// "(T) Equal(I) bool" where T is assignable to I, then use the result of
+// x.Equal(y) even if x or y is nil.
+// Otherwise, no such method exists and evaluation proceeds to the next rule.
+//
+// • Lastly, try to compare x and y based on their basic kinds.
+// Simple kinds like booleans, integers, floats, complex numbers, strings, and
+// channels are compared using the equivalent of the == operator in Go.
+// Functions are only equal if they are both nil, otherwise they are unequal.
+// Pointers are equal if the underlying values they point to are also equal.
+// Interfaces are equal if their underlying concrete values are also equal.
+//
+// Structs are equal if all of their fields are equal. If a struct contains
+// unexported fields, Equal panics unless the AllowUnexported option is used or
+// an Ignore option (e.g., cmpopts.IgnoreUnexported) ignores that field.
+//
+// Arrays, slices, and maps are equal if they are both nil or both non-nil
+// with the same length and the elements at each index or key are equal.
+// Note that a non-nil empty slice and a nil slice are not equal.
+// To equate empty slices and maps, consider using cmpopts.EquateEmpty.
+// Map keys are equal according to the == operator.
+// To use custom comparisons for map keys, consider using cmpopts.SortMaps.
+func Equal(x, y interface{}, opts ...Option) bool {
+	s := newState(opts)
+	s.compareAny(reflect.ValueOf(x), reflect.ValueOf(y))
+	return s.result.Equal()
+}
+
+// Diff returns a human-readable report of the differences between two values.
+// It returns an empty string if and only if Equal returns true for the same
+// input values and options. The output string will use the "-" symbol to
+// indicate elements removed from x, and the "+" symbol to indicate elements
+// added to y.
+//
+// Do not depend on this output being stable.
+func Diff(x, y interface{}, opts ...Option) string {
+	r := new(defaultReporter)
+	opts = Options{Options(opts), r}
+	eq := Equal(x, y, opts...)
+	d := r.String()
+	if (d == "") != eq {
+		panic("inconsistent difference and equality results")
+	}
+	return d
+}
+
+type state struct {
+	// These fields represent the "comparison state".
+	// Calling statelessCompare must not result in observable changes to these.
+	result   diff.Result // The current result of comparison
+	curPath  Path        // The current path in the value tree
+	reporter reporter    // Optional reporter used for difference formatting
+
+	// dynChecker triggers pseudo-random checks for option correctness.
+	// It is safe for statelessCompare to mutate this value.
+	dynChecker dynChecker
+
+	// These fields, once set by processOption, will not change.
+	exporters map[reflect.Type]bool // Set of structs with unexported field visibility
+	opts      Options               // List of all fundamental and filter options
+}
+
+func newState(opts []Option) *state {
+	s := new(state)
+	for _, opt := range opts {
+		s.processOption(opt)
+	}
+	return s
+}
+
+func (s *state) processOption(opt Option) {
+	switch opt := opt.(type) {
+	case nil:
+	case Options:
+		for _, o := range opt {
+			s.processOption(o)
+		}
+	case coreOption:
+		type filtered interface {
+			isFiltered() bool
+		}
+		if fopt, ok := opt.(filtered); ok && !fopt.isFiltered() {
+			panic(fmt.Sprintf("cannot use an unfiltered option: %v", opt))
+		}
+		s.opts = append(s.opts, opt)
+	case visibleStructs:
+		if s.exporters == nil {
+			s.exporters = make(map[reflect.Type]bool)
+		}
+		for t := range opt {
+			s.exporters[t] = true
+		}
+	case reporter:
+		if s.reporter != nil {
+			panic("difference reporter already registered")
+		}
+		s.reporter = opt
+	default:
+		panic(fmt.Sprintf("unknown option %T", opt))
+	}
+}
+
+// statelessCompare compares two values and returns the result.
+// This function is stateless in that it does not alter the current result,
+// or output to any registered reporters.
+func (s *state) statelessCompare(vx, vy reflect.Value) diff.Result {
+	// We do not save and restore the curPath because all of the compareX
+	// methods should properly push and pop from the path.
+	// It is an implementation bug if the contents of curPath differs from
+	// when calling this function to when returning from it.
+
+	oldResult, oldReporter := s.result, s.reporter
+	s.result = diff.Result{} // Reset result
+	s.reporter = nil         // Remove reporter to avoid spurious printouts
+	s.compareAny(vx, vy)
+	res := s.result
+	s.result, s.reporter = oldResult, oldReporter
+	return res
+}
+
+func (s *state) compareAny(vx, vy reflect.Value) {
+	// TODO: Support cyclic data structures.
+
+	// Rule 0: Differing types are never equal.
+	if !vx.IsValid() || !vy.IsValid() {
+		s.report(vx.IsValid() == vy.IsValid(), vx, vy)
+		return
+	}
+	if vx.Type() != vy.Type() {
+		s.report(false, vx, vy) // Possible for path to be empty
+		return
+	}
+	t := vx.Type()
+	if len(s.curPath) == 0 {
+		s.curPath.push(&pathStep{typ: t})
+		defer s.curPath.pop()
+	}
+	vx, vy = s.tryExporting(vx, vy)
+
+	// Rule 1: Check whether an option applies on this node in the value tree.
+	if s.tryOptions(vx, vy, t) {
+		return
+	}
+
+	// Rule 2: Check whether the type has a valid Equal method.
+	if s.tryMethod(vx, vy, t) {
+		return
+	}
+
+	// Rule 3: Recursively descend into each value's underlying kind.
+	switch t.Kind() {
+	case reflect.Bool:
+		s.report(vx.Bool() == vy.Bool(), vx, vy)
+		return
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		s.report(vx.Int() == vy.Int(), vx, vy)
+		return
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		s.report(vx.Uint() == vy.Uint(), vx, vy)
+		return
+	case reflect.Float32, reflect.Float64:
+		s.report(vx.Float() == vy.Float(), vx, vy)
+		return
+	case reflect.Complex64, reflect.Complex128:
+		s.report(vx.Complex() == vy.Complex(), vx, vy)
+		return
+	case reflect.String:
+		s.report(vx.String() == vy.String(), vx, vy)
+		return
+	case reflect.Chan, reflect.UnsafePointer:
+		s.report(vx.Pointer() == vy.Pointer(), vx, vy)
+		return
+	case reflect.Func:
+		s.report(vx.IsNil() && vy.IsNil(), vx, vy)
+		return
+	case reflect.Ptr:
+		if vx.IsNil() || vy.IsNil() {
+			s.report(vx.IsNil() && vy.IsNil(), vx, vy)
+			return
+		}
+		s.curPath.push(&indirect{pathStep{t.Elem()}})
+		defer s.curPath.pop()
+		s.compareAny(vx.Elem(), vy.Elem())
+		return
+	case reflect.Interface:
+		if vx.IsNil() || vy.IsNil() {
+			s.report(vx.IsNil() && vy.IsNil(), vx, vy)
+			return
+		}
+		if vx.Elem().Type() != vy.Elem().Type() {
+			s.report(false, vx.Elem(), vy.Elem())
+			return
+		}
+		s.curPath.push(&typeAssertion{pathStep{vx.Elem().Type()}})
+		defer s.curPath.pop()
+		s.compareAny(vx.Elem(), vy.Elem())
+		return
+	case reflect.Slice:
+		if vx.IsNil() || vy.IsNil() {
+			s.report(vx.IsNil() && vy.IsNil(), vx, vy)
+			return
+		}
+		fallthrough
+	case reflect.Array:
+		s.compareArray(vx, vy, t)
+		return
+	case reflect.Map:
+		s.compareMap(vx, vy, t)
+		return
+	case reflect.Struct:
+		s.compareStruct(vx, vy, t)
+		return
+	default:
+		panic(fmt.Sprintf("%v kind not handled", t.Kind()))
+	}
+}
+
+func (s *state) tryExporting(vx, vy reflect.Value) (reflect.Value, reflect.Value) {
+	if sf, ok := s.curPath[len(s.curPath)-1].(*structField); ok && sf.unexported {
+		if sf.force {
+			// Use unsafe pointer arithmetic to get read-write access to an
+			// unexported field in the struct.
+			vx = unsafeRetrieveField(sf.pvx, sf.field)
+			vy = unsafeRetrieveField(sf.pvy, sf.field)
+		} else {
+			// We are not allowed to export the value, so invalidate them
+			// so that tryOptions can panic later if not explicitly ignored.
+			vx = nothing
+			vy = nothing
+		}
+	}
+	return vx, vy
+}
+
+func (s *state) tryOptions(vx, vy reflect.Value, t reflect.Type) bool {
+	// If there were no FilterValues, we will not detect invalid inputs,
+	// so manually check for them and append invalid if necessary.
+	// We still evaluate the options since an ignore can override invalid.
+	opts := s.opts
+	if !vx.IsValid() || !vy.IsValid() {
+		opts = Options{opts, invalid{}}
+	}
+
+	// Evaluate all filters and apply the remaining options.
+	if opt := opts.filter(s, vx, vy, t); opt != nil {
+		opt.apply(s, vx, vy)
+		return true
+	}
+	return false
+}
+
+func (s *state) tryMethod(vx, vy reflect.Value, t reflect.Type) bool {
+	// Check if this type even has an Equal method.
+	m, ok := t.MethodByName("Equal")
+	if !ok || !function.IsType(m.Type, function.EqualAssignable) {
+		return false
+	}
+
+	eq := s.callTTBFunc(m.Func, vx, vy)
+	s.report(eq, vx, vy)
+	return true
+}
+
+func (s *state) callTRFunc(f, v reflect.Value) reflect.Value {
+	v = sanitizeValue(v, f.Type().In(0))
+	if !s.dynChecker.Next() {
+		return f.Call([]reflect.Value{v})[0]
+	}
+
+	// Run the function twice and ensure that we get the same results back.
+	// We run in goroutines so that the race detector (if enabled) can detect
+	// unsafe mutations to the input.
+	c := make(chan reflect.Value)
+	go detectRaces(c, f, v)
+	want := f.Call([]reflect.Value{v})[0]
+	if got := <-c; !s.statelessCompare(got, want).Equal() {
+		// To avoid false-positives with non-reflexive equality operations,
+		// we sanity check whether a value is equal to itself.
+		if !s.statelessCompare(want, want).Equal() {
+			return want
+		}
+		fn := getFuncName(f.Pointer())
+		panic(fmt.Sprintf("non-deterministic function detected: %s", fn))
+	}
+	return want
+}
+
+func (s *state) callTTBFunc(f, x, y reflect.Value) bool {
+	x = sanitizeValue(x, f.Type().In(0))
+	y = sanitizeValue(y, f.Type().In(1))
+	if !s.dynChecker.Next() {
+		return f.Call([]reflect.Value{x, y})[0].Bool()
+	}
+
+	// Swapping the input arguments is sufficient to check that
+	// f is symmetric and deterministic.
+	// We run in goroutines so that the race detector (if enabled) can detect
+	// unsafe mutations to the input.
+	c := make(chan reflect.Value)
+	go detectRaces(c, f, y, x)
+	want := f.Call([]reflect.Value{x, y})[0].Bool()
+	if got := <-c; !got.IsValid() || got.Bool() != want {
+		fn := getFuncName(f.Pointer())
+		panic(fmt.Sprintf("non-deterministic or non-symmetric function detected: %s", fn))
+	}
+	return want
+}
+
+func detectRaces(c chan<- reflect.Value, f reflect.Value, vs ...reflect.Value) {
+	var ret reflect.Value
+	defer func() {
+		recover() // Ignore panics, let the other call to f panic instead
+		c <- ret
+	}()
+	ret = f.Call(vs)[0]
+}
+
+// sanitizeValue converts nil interfaces of type T to those of type R,
+// assuming that T is assignable to R.
+// Otherwise, it returns the input value as is.
+func sanitizeValue(v reflect.Value, t reflect.Type) reflect.Value {
+	// TODO(dsnet): Remove this hacky workaround.
+	// See https://golang.org/issue/22143
+	if v.Kind() == reflect.Interface && v.IsNil() && v.Type() != t {
+		return reflect.New(t).Elem()
+	}
+	return v
+}
+
+func (s *state) compareArray(vx, vy reflect.Value, t reflect.Type) {
+	step := &sliceIndex{pathStep{t.Elem()}, 0, 0}
+	s.curPath.push(step)
+
+	// Compute an edit-script for slices vx and vy.
+	es := diff.Difference(vx.Len(), vy.Len(), func(ix, iy int) diff.Result {
+		step.xkey, step.ykey = ix, iy
+		return s.statelessCompare(vx.Index(ix), vy.Index(iy))
+	})
+
+	// Report the entire slice as is if the arrays are of primitive kind,
+	// and the arrays are different enough.
+	isPrimitive := false
+	switch t.Elem().Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
+		reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr,
+		reflect.Bool, reflect.Float32, reflect.Float64, reflect.Complex64, reflect.Complex128:
+		isPrimitive = true
+	}
+	if isPrimitive && es.Dist() > (vx.Len()+vy.Len())/4 {
+		s.curPath.pop() // Pop first since we are reporting the whole slice
+		s.report(false, vx, vy)
+		return
+	}
+
+	// Replay the edit-script.
+	var ix, iy int
+	for _, e := range es {
+		switch e {
+		case diff.UniqueX:
+			step.xkey, step.ykey = ix, -1
+			s.report(false, vx.Index(ix), nothing)
+			ix++
+		case diff.UniqueY:
+			step.xkey, step.ykey = -1, iy
+			s.report(false, nothing, vy.Index(iy))
+			iy++
+		default:
+			step.xkey, step.ykey = ix, iy
+			if e == diff.Identity {
+				s.report(true, vx.Index(ix), vy.Index(iy))
+			} else {
+				s.compareAny(vx.Index(ix), vy.Index(iy))
+			}
+			ix++
+			iy++
+		}
+	}
+	s.curPath.pop()
+	return
+}
+
+func (s *state) compareMap(vx, vy reflect.Value, t reflect.Type) {
+	if vx.IsNil() || vy.IsNil() {
+		s.report(vx.IsNil() && vy.IsNil(), vx, vy)
+		return
+	}
+
+	// We combine and sort the two map keys so that we can perform the
+	// comparisons in a deterministic order.
+	step := &mapIndex{pathStep: pathStep{t.Elem()}}
+	s.curPath.push(step)
+	defer s.curPath.pop()
+	for _, k := range value.SortKeys(append(vx.MapKeys(), vy.MapKeys()...)) {
+		step.key = k
+		vvx := vx.MapIndex(k)
+		vvy := vy.MapIndex(k)
+		switch {
+		case vvx.IsValid() && vvy.IsValid():
+			s.compareAny(vvx, vvy)
+		case vvx.IsValid() && !vvy.IsValid():
+			s.report(false, vvx, nothing)
+		case !vvx.IsValid() && vvy.IsValid():
+			s.report(false, nothing, vvy)
+		default:
+			// It is possible for both vvx and vvy to be invalid if the
+			// key contained a NaN value in it. There is no way in
+			// reflection to be able to retrieve these values.
+			// See https://golang.org/issue/11104
+			panic(fmt.Sprintf("%#v has map key with NaNs", s.curPath))
+		}
+	}
+}
+
+func (s *state) compareStruct(vx, vy reflect.Value, t reflect.Type) {
+	var vax, vay reflect.Value // Addressable versions of vx and vy
+
+	step := &structField{}
+	s.curPath.push(step)
+	defer s.curPath.pop()
+	for i := 0; i < t.NumField(); i++ {
+		vvx := vx.Field(i)
+		vvy := vy.Field(i)
+		step.typ = t.Field(i).Type
+		step.name = t.Field(i).Name
+		step.idx = i
+		step.unexported = !isExported(step.name)
+		if step.unexported {
+			// Defer checking of unexported fields until later to give an
+			// Ignore a chance to ignore the field.
+			if !vax.IsValid() || !vay.IsValid() {
+				// For unsafeRetrieveField to work, the parent struct must
+				// be addressable. Create a new copy of the values if
+				// necessary to make them addressable.
+				vax = makeAddressable(vx)
+				vay = makeAddressable(vy)
+			}
+			step.force = s.exporters[t]
+			step.pvx = vax
+			step.pvy = vay
+			step.field = t.Field(i)
+		}
+		s.compareAny(vvx, vvy)
+	}
+}
+
+// report records the result of a single comparison.
+// It also calls Report if any reporter is registered.
+func (s *state) report(eq bool, vx, vy reflect.Value) {
+	if eq {
+		s.result.NSame++
+	} else {
+		s.result.NDiff++
+	}
+	if s.reporter != nil {
+		s.reporter.Report(vx, vy, eq, s.curPath)
+	}
+}
+
+// dynChecker tracks the state needed to periodically perform checks that
+// user provided functions are symmetric and deterministic.
+// The zero value is safe for immediate use.
+type dynChecker struct{ curr, next int }
+
+// Next increments the state and reports whether a check should be performed.
+//
+// Checks occur every Nth function call, where N is a triangular number:
+//	0 1 3 6 10 15 21 28 36 45 55 66 78 91 105 120 136 153 171 190 ...
+// See https://en.wikipedia.org/wiki/Triangular_number
+//
+// This sequence ensures that the cost of checks drops significantly as
+// the number of functions calls grows larger.
+func (dc *dynChecker) Next() bool {
+	ok := dc.curr == dc.next
+	if ok {
+		dc.curr = 0
+		dc.next++
+	}
+	dc.curr++
+	return ok
+}
+
+// makeAddressable returns a value that is always addressable.
+// It returns the input verbatim if it is already addressable,
+// otherwise it creates a new value and returns an addressable copy.
+func makeAddressable(v reflect.Value) reflect.Value {
+	if v.CanAddr() {
+		return v
+	}
+	vc := reflect.New(v.Type()).Elem()
+	vc.Set(v)
+	return vc
+}

libnetwork/vendor/github.com/google/go-cmp/cmp/internal/diff/debug_disable.go

@@ -0,0 +1,17 @@
+// Copyright 2017, The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE.md file.
+
+// +build !debug
+
+package diff
+
+var debug debugger
+
+type debugger struct{}
+
+func (debugger) Begin(_, _ int, f EqualFunc, _, _ *EditScript) EqualFunc {
+	return f
+}
+func (debugger) Update() {}
+func (debugger) Finish() {}

libnetwork/vendor/github.com/google/go-cmp/cmp/internal/diff/debug_enable.go

@@ -0,0 +1,122 @@
+// Copyright 2017, The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE.md file.
+
+// +build debug
+
+package diff
+
+import (
+	"fmt"
+	"strings"
+	"sync"
+	"time"
+)
+
+// The algorithm can be seen running in real-time by enabling debugging:
+//	go test -tags=debug -v
+//
+// Example output:
+//	=== RUN   TestDifference/#34
+//	┌───────────────────────────────┐
+//	│ \ · · · · · · · · · · · · · · │
+//	│ · # · · · · · · · · · · · · · │
+//	│ · \ · · · · · · · · · · · · · │
+//	│ · · \ · · · · · · · · · · · · │
+//	│ · · · X # · · · · · · · · · · │
+//	│ · · · # \ · · · · · · · · · · │
+//	│ · · · · · # # · · · · · · · · │
+//	│ · · · · · # \ · · · · · · · · │
+//	│ · · · · · · · \ · · · · · · · │
+//	│ · · · · · · · · \ · · · · · · │
+//	│ · · · · · · · · · \ · · · · · │
+//	│ · · · · · · · · · · \ · · # · │
+//	│ · · · · · · · · · · · \ # # · │
+//	│ · · · · · · · · · · · # # # · │
+//	│ · · · · · · · · · · # # # # · │
+//	│ · · · · · · · · · # # # # # · │
+//	│ · · · · · · · · · · · · · · \ │
+//	└───────────────────────────────┘
+//	[.Y..M.XY......YXYXY.|]
+//
+// The grid represents the edit-graph where the horizontal axis represents
+// list X and the vertical axis represents list Y. The start of the two lists
+// is the top-left, while the ends are the bottom-right. The '·' represents
+// an unexplored node in the graph. The '\' indicates that the two symbols
+// from list X and Y are equal. The 'X' indicates that two symbols are similar
+// (but not exactly equal) to each other. The '#' indicates that the two symbols
+// are different (and not similar). The algorithm traverses this graph trying to
+// make the paths starting in the top-left and the bottom-right connect.
+//
+// The series of '.', 'X', 'Y', and 'M' characters at the bottom represents
+// the currently established path from the forward and reverse searches,
+// separated by a '|' character.
+
+const (
+	updateDelay  = 100 * time.Millisecond
+	finishDelay  = 500 * time.Millisecond
+	ansiTerminal = true // ANSI escape codes used to move terminal cursor
+)
+
+var debug debugger
+
+type debugger struct {
+	sync.Mutex
+	p1, p2           EditScript
+	fwdPath, revPath *EditScript
+	grid             []byte
+	lines            int
+}
+
+func (dbg *debugger) Begin(nx, ny int, f EqualFunc, p1, p2 *EditScript) EqualFunc {
+	dbg.Lock()
+	dbg.fwdPath, dbg.revPath = p1, p2
+	top := "┌─" + strings.Repeat("──", nx) + "┐\n"
+	row := "│ " + strings.Repeat("· ", nx) + "│\n"
+	btm := "└─" + strings.Repeat("──", nx) + "┘\n"
+	dbg.grid = []byte(top + strings.Repeat(row, ny) + btm)
+	dbg.lines = strings.Count(dbg.String(), "\n")
+	fmt.Print(dbg)
+
+	// Wrap the EqualFunc so that we can intercept each result.
+	return func(ix, iy int) (r Result) {
+		cell := dbg.grid[len(top)+iy*len(row):][len("│ ")+len("· ")*ix:][:len("·")]
+		for i := range cell {
+			cell[i] = 0 // Zero out the multiple bytes of UTF-8 middle-dot
+		}
+		switch r = f(ix, iy); {
+		case r.Equal():
+			cell[0] = '\\'
+		case r.Similar():
+			cell[0] = 'X'
+		default:
+			cell[0] = '#'
+		}
+		return
+	}
+}
+
+func (dbg *debugger) Update() {
+	dbg.print(updateDelay)
+}
+
+func (dbg *debugger) Finish() {
+	dbg.print(finishDelay)
+	dbg.Unlock()
+}
+
+func (dbg *debugger) String() string {
+	dbg.p1, dbg.p2 = *dbg.fwdPath, dbg.p2[:0]
+	for i := len(*dbg.revPath) - 1; i >= 0; i-- {
+		dbg.p2 = append(dbg.p2, (*dbg.revPath)[i])
+	}
+	return fmt.Sprintf("%s[%v|%v]\n\n", dbg.grid, dbg.p1, dbg.p2)
+}
+
+func (dbg *debugger) print(d time.Duration) {
+	if ansiTerminal {
+		fmt.Printf("\x1b[%dA", dbg.lines) // Reset terminal cursor
+	}
+	fmt.Print(dbg)
+	time.Sleep(d)
+}

libnetwork/vendor/github.com/google/go-cmp/cmp/internal/diff/diff.go

@@ -0,0 +1,363 @@
+// Copyright 2017, The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE.md file.
+
+// Package diff implements an algorithm for producing edit-scripts.
+// The edit-script is a sequence of operations needed to transform one list
+// of symbols into another (or vice-versa). The edits allowed are insertions,
+// deletions, and modifications. The summation of all edits is called the
+// Levenshtein distance as this problem is well-known in computer science.
+//
+// This package prioritizes performance over accuracy. That is, the run time
+// is more important than obtaining a minimal Levenshtein distance.
+package diff
+
+// EditType represents a single operation within an edit-script.
+type EditType uint8
+
+const (
+	// Identity indicates that a symbol pair is identical in both list X and Y.
+	Identity EditType = iota
+	// UniqueX indicates that a symbol only exists in X and not Y.
+	UniqueX
+	// UniqueY indicates that a symbol only exists in Y and not X.
+	UniqueY
+	// Modified indicates that a symbol pair is a modification of each other.
+	Modified
+)
+
+// EditScript represents the series of differences between two lists.
+type EditScript []EditType
+
+// String returns a human-readable string representing the edit-script where
+// Identity, UniqueX, UniqueY, and Modified are represented by the
+// '.', 'X', 'Y', and 'M' characters, respectively.
+func (es EditScript) String() string {
+	b := make([]byte, len(es))
+	for i, e := range es {
+		switch e {
+		case Identity:
+			b[i] = '.'
+		case UniqueX:
+			b[i] = 'X'
+		case UniqueY:
+			b[i] = 'Y'
+		case Modified:
+			b[i] = 'M'
+		default:
+			panic("invalid edit-type")
+		}
+	}
+	return string(b)
+}
+
+// stats returns a histogram of the number of each type of edit operation.
+func (es EditScript) stats() (s struct{ NI, NX, NY, NM int }) {
+	for _, e := range es {
+		switch e {
+		case Identity:
+			s.NI++
+		case UniqueX:
+			s.NX++
+		case UniqueY:
+			s.NY++
+		case Modified:
+			s.NM++
+		default:
+			panic("invalid edit-type")
+		}
+	}
+	return
+}
+
+// Dist is the Levenshtein distance and is guaranteed to be 0 if and only if
+// lists X and Y are equal.
+func (es EditScript) Dist() int { return len(es) - es.stats().NI }
+
+// LenX is the length of the X list.
+func (es EditScript) LenX() int { return len(es) - es.stats().NY }
+
+// LenY is the length of the Y list.
+func (es EditScript) LenY() int { return len(es) - es.stats().NX }
+
+// EqualFunc reports whether the symbols at indexes ix and iy are equal.
+// When called by Difference, the index is guaranteed to be within nx and ny.
+type EqualFunc func(ix int, iy int) Result
+
+// Result is the result of comparison.
+// NSame is the number of sub-elements that are equal.
+// NDiff is the number of sub-elements that are not equal.
+type Result struct{ NSame, NDiff int }
+
+// Equal indicates whether the symbols are equal. Two symbols are equal
+// if and only if NDiff == 0. If Equal, then they are also Similar.
+func (r Result) Equal() bool { return r.NDiff == 0 }
+
+// Similar indicates whether two symbols are similar and may be represented
+// by using the Modified type. As a special case, we consider binary comparisons
+// (i.e., those that return Result{1, 0} or Result{0, 1}) to be similar.
+//
+// The exact ratio of NSame to NDiff to determine similarity may change.
+func (r Result) Similar() bool {
+	// Use NSame+1 to offset NSame so that binary comparisons are similar.
+	return r.NSame+1 >= r.NDiff
+}
+
+// Difference reports whether two lists of lengths nx and ny are equal
+// given the definition of equality provided as f.
+//
+// This function returns an edit-script, which is a sequence of operations
+// needed to convert one list into the other. The following invariants for
+// the edit-script are maintained:
+//	• eq == (es.Dist()==0)
+//	• nx == es.LenX()
+//	• ny == es.LenY()
+//
+// This algorithm is not guaranteed to be an optimal solution (i.e., one that
+// produces an edit-script with a minimal Levenshtein distance). This algorithm
+// favors performance over optimality. The exact output is not guaranteed to
+// be stable and may change over time.
+func Difference(nx, ny int, f EqualFunc) (es EditScript) {
+	// This algorithm is based on traversing what is known as an "edit-graph".
+	// See Figure 1 from "An O(ND) Difference Algorithm and Its Variations"
+	// by Eugene W. Myers. Since D can be as large as N itself, this is
+	// effectively O(N^2). Unlike the algorithm from that paper, we are not
+	// interested in the optimal path, but at least some "decent" path.
+	//
+	// For example, let X and Y be lists of symbols:
+	//	X = [A B C A B B A]
+	//	Y = [C B A B A C]
+	//
+	// The edit-graph can be drawn as the following:
+	//	   A B C A B B A
+	//	  ┌─────────────┐
+	//	C │_|_|\|_|_|_|_│ 0
+	//	B │_|\|_|_|\|\|_│ 1
+	//	A │\|_|_|\|_|_|\│ 2
+	//	B │_|\|_|_|\|\|_│ 3
+	//	A │\|_|_|\|_|_|\│ 4
+	//	C │ | |\| | | | │ 5
+	//	  └─────────────┘ 6
+	//	   0 1 2 3 4 5 6 7
+	//
+	// List X is written along the horizontal axis, while list Y is written
+	// along the vertical axis. At any point on this grid, if the symbol in
+	// list X matches the corresponding symbol in list Y, then a '\' is drawn.
+	// The goal of any minimal edit-script algorithm is to find a path from the
+	// top-left corner to the bottom-right corner, while traveling through the
+	// fewest horizontal or vertical edges.
+	// A horizontal edge is equivalent to inserting a symbol from list X.
+	// A vertical edge is equivalent to inserting a symbol from list Y.
+	// A diagonal edge is equivalent to a matching symbol between both X and Y.
+
+	// Invariants:
+	//	• 0 ≤ fwdPath.X ≤ (fwdFrontier.X, revFrontier.X) ≤ revPath.X ≤ nx
+	//	• 0 ≤ fwdPath.Y ≤ (fwdFrontier.Y, revFrontier.Y) ≤ revPath.Y ≤ ny
+	//
+	// In general:
+	//	• fwdFrontier.X < revFrontier.X
+	//	• fwdFrontier.Y < revFrontier.Y
+	// Unless, it is time for the algorithm to terminate.
+	fwdPath := path{+1, point{0, 0}, make(EditScript, 0, (nx+ny)/2)}
+	revPath := path{-1, point{nx, ny}, make(EditScript, 0)}
+	fwdFrontier := fwdPath.point // Forward search frontier
+	revFrontier := revPath.point // Reverse search frontier
+
+	// Search budget bounds the cost of searching for better paths.
+	// The longest sequence of non-matching symbols that can be tolerated is
+	// approximately the square-root of the search budget.
+	searchBudget := 4 * (nx + ny) // O(n)
+
+	// The algorithm below is a greedy, meet-in-the-middle algorithm for
+	// computing sub-optimal edit-scripts between two lists.
+	//
+	// The algorithm is approximately as follows:
+	//	• Searching for differences switches back-and-forth between
+	//	a search that starts at the beginning (the top-left corner), and
+	//	a search that starts at the end (the bottom-right corner). The goal of
+	//	the search is connect with the search from the opposite corner.
+	//	• As we search, we build a path in a greedy manner, where the first
+	//	match seen is added to the path (this is sub-optimal, but provides a
+	//	decent result in practice). When matches are found, we try the next pair
+	//	of symbols in the lists and follow all matches as far as possible.
+	//	• When searching for matches, we search along a diagonal going through
+	//	through the "frontier" point. If no matches are found, we advance the
+	//	frontier towards the opposite corner.
+	//	• This algorithm terminates when either the X coordinates or the
+	//	Y coordinates of the forward and reverse frontier points ever intersect.
+	//
+	// This algorithm is correct even if searching only in the forward direction
+	// or in the reverse direction. We do both because it is commonly observed
+	// that two lists commonly differ because elements were added to the front
+	// or end of the other list.
+	//
+	// Running the tests with the "debug" build tag prints a visualization of
+	// the algorithm running in real-time. This is educational for understanding
+	// how the algorithm works. See debug_enable.go.
+	f = debug.Begin(nx, ny, f, &fwdPath.es, &revPath.es)
+	for {
+		// Forward search from the beginning.
+		if fwdFrontier.X >= revFrontier.X || fwdFrontier.Y >= revFrontier.Y || searchBudget == 0 {
+			break
+		}
+		for stop1, stop2, i := false, false, 0; !(stop1 && stop2) && searchBudget > 0; i++ {
+			// Search in a diagonal pattern for a match.
+			z := zigzag(i)
+			p := point{fwdFrontier.X + z, fwdFrontier.Y - z}
+			switch {
+			case p.X >= revPath.X || p.Y < fwdPath.Y:
+				stop1 = true // Hit top-right corner
+			case p.Y >= revPath.Y || p.X < fwdPath.X:
+				stop2 = true // Hit bottom-left corner
+			case f(p.X, p.Y).Equal():
+				// Match found, so connect the path to this point.
+				fwdPath.connect(p, f)
+				fwdPath.append(Identity)
+				// Follow sequence of matches as far as possible.
+				for fwdPath.X < revPath.X && fwdPath.Y < revPath.Y {
+					if !f(fwdPath.X, fwdPath.Y).Equal() {
+						break
+					}
+					fwdPath.append(Identity)
+				}
+				fwdFrontier = fwdPath.point
+				stop1, stop2 = true, true
+			default:
+				searchBudget-- // Match not found
+			}
+			debug.Update()
+		}
+		// Advance the frontier towards reverse point.
+		if revPath.X-fwdFrontier.X >= revPath.Y-fwdFrontier.Y {
+			fwdFrontier.X++
+		} else {
+			fwdFrontier.Y++
+		}
+
+		// Reverse search from the end.
+		if fwdFrontier.X >= revFrontier.X || fwdFrontier.Y >= revFrontier.Y || searchBudget == 0 {
+			break
+		}
+		for stop1, stop2, i := false, false, 0; !(stop1 && stop2) && searchBudget > 0; i++ {
+			// Search in a diagonal pattern for a match.
+			z := zigzag(i)
+			p := point{revFrontier.X - z, revFrontier.Y + z}
+			switch {
+			case fwdPath.X >= p.X || revPath.Y < p.Y:
+				stop1 = true // Hit bottom-left corner
+			case fwdPath.Y >= p.Y || revPath.X < p.X:
+				stop2 = true // Hit top-right corner
+			case f(p.X-1, p.Y-1).Equal():
+				// Match found, so connect the path to this point.
+				revPath.connect(p, f)
+				revPath.append(Identity)
+				// Follow sequence of matches as far as possible.
+				for fwdPath.X < revPath.X && fwdPath.Y < revPath.Y {
+					if !f(revPath.X-1, revPath.Y-1).Equal() {
+						break
+					}
+					revPath.append(Identity)
+				}
+				revFrontier = revPath.point
+				stop1, stop2 = true, true
+			default:
+				searchBudget-- // Match not found
+			}
+			debug.Update()
+		}
+		// Advance the frontier towards forward point.
+		if revFrontier.X-fwdPath.X >= revFrontier.Y-fwdPath.Y {
+			revFrontier.X--
+		} else {
+			revFrontier.Y--
+		}
+	}
+
+	// Join the forward and reverse paths and then append the reverse path.
+	fwdPath.connect(revPath.point, f)
+	for i := len(revPath.es) - 1; i >= 0; i-- {
+		t := revPath.es[i]
+		revPath.es = revPath.es[:i]
+		fwdPath.append(t)
+	}
+	debug.Finish()
+	return fwdPath.es
+}
+
+type path struct {
+	dir   int // +1 if forward, -1 if reverse
+	point     // Leading point of the EditScript path
+	es    EditScript
+}
+
+// connect appends any necessary Identity, Modified, UniqueX, or UniqueY types
+// to the edit-script to connect p.point to dst.
+func (p *path) connect(dst point, f EqualFunc) {
+	if p.dir > 0 {
+		// Connect in forward direction.
+		for dst.X > p.X && dst.Y > p.Y {
+			switch r := f(p.X, p.Y); {
+			case r.Equal():
+				p.append(Identity)
+			case r.Similar():
+				p.append(Modified)
+			case dst.X-p.X >= dst.Y-p.Y:
+				p.append(UniqueX)
+			default:
+				p.append(UniqueY)
+			}
+		}
+		for dst.X > p.X {
+			p.append(UniqueX)
+		}
+		for dst.Y > p.Y {
+			p.append(UniqueY)
+		}
+	} else {
+		// Connect in reverse direction.
+		for p.X > dst.X && p.Y > dst.Y {
+			switch r := f(p.X-1, p.Y-1); {
+			case r.Equal():
+				p.append(Identity)
+			case r.Similar():
+				p.append(Modified)
+			case p.Y-dst.Y >= p.X-dst.X:
+				p.append(UniqueY)
+			default:
+				p.append(UniqueX)
+			}
+		}
+		for p.X > dst.X {
+			p.append(UniqueX)
+		}
+		for p.Y > dst.Y {
+			p.append(UniqueY)
+		}
+	}
+}
+
+func (p *path) append(t EditType) {
+	p.es = append(p.es, t)
+	switch t {
+	case Identity, Modified:
+		p.add(p.dir, p.dir)
+	case UniqueX:
+		p.add(p.dir, 0)
+	case UniqueY:
+		p.add(0, p.dir)
+	}
+	debug.Update()
+}
+
+type point struct{ X, Y int }
+
+func (p *point) add(dx, dy int) { p.X += dx; p.Y += dy }
+
+// zigzag maps a consecutive sequence of integers to a zig-zag sequence.
+//	[0 1 2 3 4 5 ...] => [0 -1 +1 -2 +2 ...]
+func zigzag(x int) int {
+	if x&1 != 0 {
+		x = ^x
+	}
+	return x >> 1
+}

libnetwork/vendor/github.com/google/go-cmp/cmp/internal/function/func.go

@@ -0,0 +1,49 @@
+// Copyright 2017, The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE.md file.
+
+// Package function identifies function types.
+package function
+
+import "reflect"
+
+type funcType int
+
+const (
+	_ funcType = iota
+
+	ttbFunc // func(T, T) bool
+	tibFunc // func(T, I) bool
+	trFunc  // func(T) R
+
+	Equal           = ttbFunc // func(T, T) bool
+	EqualAssignable = tibFunc // func(T, I) bool; encapsulates func(T, T) bool
+	Transformer     = trFunc  // func(T) R
+	ValueFilter     = ttbFunc // func(T, T) bool
+	Less            = ttbFunc // func(T, T) bool
+)
+
+var boolType = reflect.TypeOf(true)
+
+// IsType reports whether the reflect.Type is of the specified function type.
+func IsType(t reflect.Type, ft funcType) bool {
+	if t == nil || t.Kind() != reflect.Func || t.IsVariadic() {
+		return false
+	}
+	ni, no := t.NumIn(), t.NumOut()
+	switch ft {
+	case ttbFunc: // func(T, T) bool
+		if ni == 2 && no == 1 && t.In(0) == t.In(1) && t.Out(0) == boolType {
+			return true
+		}
+	case tibFunc: // func(T, I) bool
+		if ni == 2 && no == 1 && t.In(0).AssignableTo(t.In(1)) && t.Out(0) == boolType {
+			return true
+		}
+	case trFunc: // func(T) R
+		if ni == 1 && no == 1 {
+			return true
+		}
+	}
+	return false
+}

libnetwork/vendor/github.com/google/go-cmp/cmp/internal/value/format.go

@@ -0,0 +1,277 @@
+// Copyright 2017, The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE.md file.
+
+// Package value provides functionality for reflect.Value types.
+package value
+
+import (
+	"fmt"
+	"reflect"
+	"strconv"
+	"strings"
+	"unicode"
+)
+
+var stringerIface = reflect.TypeOf((*fmt.Stringer)(nil)).Elem()
+
+// Format formats the value v as a string.
+//
+// This is similar to fmt.Sprintf("%+v", v) except this:
+//	* Prints the type unless it can be elided
+//	* Avoids printing struct fields that are zero
+//	* Prints a nil-slice as being nil, not empty
+//	* Prints map entries in deterministic order
+func Format(v reflect.Value, conf FormatConfig) string {
+	conf.printType = true
+	conf.followPointers = true
+	conf.realPointers = true
+	return formatAny(v, conf, nil)
+}
+
+type FormatConfig struct {
+	UseStringer        bool // Should the String method be used if available?
+	printType          bool // Should we print the type before the value?
+	PrintPrimitiveType bool // Should we print the type of primitives?
+	followPointers     bool // Should we recursively follow pointers?
+	realPointers       bool // Should we print the real address of pointers?
+}
+
+func formatAny(v reflect.Value, conf FormatConfig, visited map[uintptr]bool) string {
+	// TODO: Should this be a multi-line printout in certain situations?
+
+	if !v.IsValid() {
+		return "<non-existent>"
+	}
+	if conf.UseStringer && v.Type().Implements(stringerIface) && v.CanInterface() {
+		if (v.Kind() == reflect.Ptr || v.Kind() == reflect.Interface) && v.IsNil() {
+			return "<nil>"
+		}
+
+		const stringerPrefix = "s" // Indicates that the String method was used
+		s := v.Interface().(fmt.Stringer).String()
+		return stringerPrefix + formatString(s)
+	}
+
+	switch v.Kind() {
+	case reflect.Bool:
+		return formatPrimitive(v.Type(), v.Bool(), conf)
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return formatPrimitive(v.Type(), v.Int(), conf)
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		if v.Type().PkgPath() == "" || v.Kind() == reflect.Uintptr {
+			// Unnamed uints are usually bytes or words, so use hexadecimal.
+			return formatPrimitive(v.Type(), formatHex(v.Uint()), conf)
+		}
+		return formatPrimitive(v.Type(), v.Uint(), conf)
+	case reflect.Float32, reflect.Float64:
+		return formatPrimitive(v.Type(), v.Float(), conf)
+	case reflect.Complex64, reflect.Complex128:
+		return formatPrimitive(v.Type(), v.Complex(), conf)
+	case reflect.String:
+		return formatPrimitive(v.Type(), formatString(v.String()), conf)
+	case reflect.UnsafePointer, reflect.Chan, reflect.Func:
+		return formatPointer(v, conf)
+	case reflect.Ptr:
+		if v.IsNil() {
+			if conf.printType {
+				return fmt.Sprintf("(%v)(nil)", v.Type())
+			}
+			return "<nil>"
+		}
+		if visited[v.Pointer()] || !conf.followPointers {
+			return formatPointer(v, conf)
+		}
+		visited = insertPointer(visited, v.Pointer())
+		return "&" + formatAny(v.Elem(), conf, visited)
+	case reflect.Interface:
+		if v.IsNil() {
+			if conf.printType {
+				return fmt.Sprintf("%v(nil)", v.Type())
+			}
+			return "<nil>"
+		}
+		return formatAny(v.Elem(), conf, visited)
+	case reflect.Slice:
+		if v.IsNil() {
+			if conf.printType {
+				return fmt.Sprintf("%v(nil)", v.Type())
+			}
+			return "<nil>"
+		}
+		if visited[v.Pointer()] {
+			return formatPointer(v, conf)
+		}
+		visited = insertPointer(visited, v.Pointer())
+		fallthrough
+	case reflect.Array:
+		var ss []string
+		subConf := conf
+		subConf.printType = v.Type().Elem().Kind() == reflect.Interface
+		for i := 0; i < v.Len(); i++ {
+			s := formatAny(v.Index(i), subConf, visited)
+			ss = append(ss, s)
+		}
+		s := fmt.Sprintf("{%s}", strings.Join(ss, ", "))
+		if conf.printType {
+			return v.Type().String() + s
+		}
+		return s
+	case reflect.Map:
+		if v.IsNil() {
+			if conf.printType {
+				return fmt.Sprintf("%v(nil)", v.Type())
+			}
+			return "<nil>"
+		}
+		if visited[v.Pointer()] {
+			return formatPointer(v, conf)
+		}
+		visited = insertPointer(visited, v.Pointer())
+
+		var ss []string
+		keyConf, valConf := conf, conf
+		keyConf.printType = v.Type().Key().Kind() == reflect.Interface
+		keyConf.followPointers = false
+		valConf.printType = v.Type().Elem().Kind() == reflect.Interface
+		for _, k := range SortKeys(v.MapKeys()) {
+			sk := formatAny(k, keyConf, visited)
+			sv := formatAny(v.MapIndex(k), valConf, visited)
+			ss = append(ss, fmt.Sprintf("%s: %s", sk, sv))
+		}
+		s := fmt.Sprintf("{%s}", strings.Join(ss, ", "))
+		if conf.printType {
+			return v.Type().String() + s
+		}
+		return s
+	case reflect.Struct:
+		var ss []string
+		subConf := conf
+		subConf.printType = true
+		for i := 0; i < v.NumField(); i++ {
+			vv := v.Field(i)
+			if isZero(vv) {
+				continue // Elide zero value fields
+			}
+			name := v.Type().Field(i).Name
+			subConf.UseStringer = conf.UseStringer
+			s := formatAny(vv, subConf, visited)
+			ss = append(ss, fmt.Sprintf("%s: %s", name, s))
+		}
+		s := fmt.Sprintf("{%s}", strings.Join(ss, ", "))
+		if conf.printType {
+			return v.Type().String() + s
+		}
+		return s
+	default:
+		panic(fmt.Sprintf("%v kind not handled", v.Kind()))
+	}
+}
+
+func formatString(s string) string {
+	// Use quoted string if it the same length as a raw string literal.
+	// Otherwise, attempt to use the raw string form.
+	qs := strconv.Quote(s)
+	if len(qs) == 1+len(s)+1 {
+		return qs
+	}
+
+	// Disallow newlines to ensure output is a single line.
+	// Only allow printable runes for readability purposes.
+	rawInvalid := func(r rune) bool {
+		return r == '`' || r == '\n' || !unicode.IsPrint(r)
+	}
+	if strings.IndexFunc(s, rawInvalid) < 0 {
+		return "`" + s + "`"
+	}
+	return qs
+}
+
+func formatPrimitive(t reflect.Type, v interface{}, conf FormatConfig) string {
+	if conf.printType && (conf.PrintPrimitiveType || t.PkgPath() != "") {
+		return fmt.Sprintf("%v(%v)", t, v)
+	}
+	return fmt.Sprintf("%v", v)
+}
+
+func formatPointer(v reflect.Value, conf FormatConfig) string {
+	p := v.Pointer()
+	if !conf.realPointers {
+		p = 0 // For deterministic printing purposes
+	}
+	s := formatHex(uint64(p))
+	if conf.printType {
+		return fmt.Sprintf("(%v)(%s)", v.Type(), s)
+	}
+	return s
+}
+
+func formatHex(u uint64) string {
+	var f string
+	switch {
+	case u <= 0xff:
+		f = "0x%02x"
+	case u <= 0xffff:
+		f = "0x%04x"
+	case u <= 0xffffff:
+		f = "0x%06x"
+	case u <= 0xffffffff:
+		f = "0x%08x"
+	case u <= 0xffffffffff:
+		f = "0x%010x"
+	case u <= 0xffffffffffff:
+		f = "0x%012x"
+	case u <= 0xffffffffffffff:
+		f = "0x%014x"
+	case u <= 0xffffffffffffffff:
+		f = "0x%016x"
+	}
+	return fmt.Sprintf(f, u)
+}
+
+// insertPointer insert p into m, allocating m if necessary.
+func insertPointer(m map[uintptr]bool, p uintptr) map[uintptr]bool {
+	if m == nil {
+		m = make(map[uintptr]bool)
+	}
+	m[p] = true
+	return m
+}
+
+// isZero reports whether v is the zero value.
+// This does not rely on Interface and so can be used on unexported fields.
+func isZero(v reflect.Value) bool {
+	switch v.Kind() {
+	case reflect.Bool:
+		return v.Bool() == false
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return v.Int() == 0
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return v.Uint() == 0
+	case reflect.Float32, reflect.Float64:
+		return v.Float() == 0
+	case reflect.Complex64, reflect.Complex128:
+		return v.Complex() == 0
+	case reflect.String:
+		return v.String() == ""
+	case reflect.UnsafePointer:
+		return v.Pointer() == 0
+	case reflect.Chan, reflect.Func, reflect.Interface, reflect.Ptr, reflect.Map, reflect.Slice:
+		return v.IsNil()
+	case reflect.Array:
+		for i := 0; i < v.Len(); i++ {
+			if !isZero(v.Index(i)) {
+				return false
+			}
+		}
+		return true
+	case reflect.Struct:
+		for i := 0; i < v.NumField(); i++ {
+			if !isZero(v.Field(i)) {
+				return false
+			}
+		}
+		return true
+	}
+	return false
+}

libnetwork/vendor/github.com/google/go-cmp/cmp/internal/value/sort.go

@@ -0,0 +1,111 @@
+// Copyright 2017, The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE.md file.
+
+package value
+
+import (
+	"fmt"
+	"math"
+	"reflect"
+	"sort"
+)
+
+// SortKeys sorts a list of map keys, deduplicating keys if necessary.
+// The type of each value must be comparable.
+func SortKeys(vs []reflect.Value) []reflect.Value {
+	if len(vs) == 0 {
+		return vs
+	}
+
+	// Sort the map keys.
+	sort.Sort(valueSorter(vs))
+
+	// Deduplicate keys (fails for NaNs).
+	vs2 := vs[:1]
+	for _, v := range vs[1:] {
+		if isLess(vs2[len(vs2)-1], v) {
+			vs2 = append(vs2, v)
+		}
+	}
+	return vs2
+}
+
+// TODO: Use sort.Slice once Google AppEngine is on Go1.8 or above.
+type valueSorter []reflect.Value
+
+func (vs valueSorter) Len() int           { return len(vs) }
+func (vs valueSorter) Less(i, j int) bool { return isLess(vs[i], vs[j]) }
+func (vs valueSorter) Swap(i, j int)      { vs[i], vs[j] = vs[j], vs[i] }
+
+// isLess is a generic function for sorting arbitrary map keys.
+// The inputs must be of the same type and must be comparable.
+func isLess(x, y reflect.Value) bool {
+	switch x.Type().Kind() {
+	case reflect.Bool:
+		return !x.Bool() && y.Bool()
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return x.Int() < y.Int()
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return x.Uint() < y.Uint()
+	case reflect.Float32, reflect.Float64:
+		fx, fy := x.Float(), y.Float()
+		return fx < fy || math.IsNaN(fx) && !math.IsNaN(fy)
+	case reflect.Complex64, reflect.Complex128:
+		cx, cy := x.Complex(), y.Complex()
+		rx, ix, ry, iy := real(cx), imag(cx), real(cy), imag(cy)
+		if rx == ry || (math.IsNaN(rx) && math.IsNaN(ry)) {
+			return ix < iy || math.IsNaN(ix) && !math.IsNaN(iy)
+		}
+		return rx < ry || math.IsNaN(rx) && !math.IsNaN(ry)
+	case reflect.Ptr, reflect.UnsafePointer, reflect.Chan:
+		return x.Pointer() < y.Pointer()
+	case reflect.String:
+		return x.String() < y.String()
+	case reflect.Array:
+		for i := 0; i < x.Len(); i++ {
+			if isLess(x.Index(i), y.Index(i)) {
+				return true
+			}
+			if isLess(y.Index(i), x.Index(i)) {
+				return false
+			}
+		}
+		return false
+	case reflect.Struct:
+		for i := 0; i < x.NumField(); i++ {
+			if isLess(x.Field(i), y.Field(i)) {
+				return true
+			}
+			if isLess(y.Field(i), x.Field(i)) {
+				return false
+			}
+		}
+		return false
+	case reflect.Interface:
+		vx, vy := x.Elem(), y.Elem()
+		if !vx.IsValid() || !vy.IsValid() {
+			return !vx.IsValid() && vy.IsValid()
+		}
+		tx, ty := vx.Type(), vy.Type()
+		if tx == ty {
+			return isLess(x.Elem(), y.Elem())
+		}
+		if tx.Kind() != ty.Kind() {
+			return vx.Kind() < vy.Kind()
+		}
+		if tx.String() != ty.String() {
+			return tx.String() < ty.String()
+		}
+		if tx.PkgPath() != ty.PkgPath() {
+			return tx.PkgPath() < ty.PkgPath()
+		}
+		// This can happen in rare situations, so we fallback to just comparing
+		// the unique pointer for a reflect.Type. This guarantees deterministic
+		// ordering within a program, but it is obviously not stable.
+		return reflect.ValueOf(vx.Type()).Pointer() < reflect.ValueOf(vy.Type()).Pointer()
+	default:
+		// Must be Func, Map, or Slice; which are not comparable.
+		panic(fmt.Sprintf("%T is not comparable", x.Type()))
+	}
+}

libnetwork/vendor/github.com/google/go-cmp/cmp/options.go

@@ -0,0 +1,453 @@
+// Copyright 2017, The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE.md file.
+
+package cmp
+
+import (
+	"fmt"
+	"reflect"
+	"runtime"
+	"strings"
+
+	"github.com/google/go-cmp/cmp/internal/function"
+)
+
+// Option configures for specific behavior of Equal and Diff. In particular,
+// the fundamental Option functions (Ignore, Transformer, and Comparer),
+// configure how equality is determined.
+//
+// The fundamental options may be composed with filters (FilterPath and
+// FilterValues) to control the scope over which they are applied.
+//
+// The cmp/cmpopts package provides helper functions for creating options that
+// may be used with Equal and Diff.
+type Option interface {
+	// filter applies all filters and returns the option that remains.
+	// Each option may only read s.curPath and call s.callTTBFunc.
+	//
+	// An Options is returned only if multiple comparers or transformers
+	// can apply simultaneously and will only contain values of those types
+	// or sub-Options containing values of those types.
+	filter(s *state, vx, vy reflect.Value, t reflect.Type) applicableOption
+}
+
+// applicableOption represents the following types:
+//	Fundamental: ignore | invalid | *comparer | *transformer
+//	Grouping:    Options
+type applicableOption interface {
+	Option
+
+	// apply executes the option, which may mutate s or panic.
+	apply(s *state, vx, vy reflect.Value)
+}
+
+// coreOption represents the following types:
+//	Fundamental: ignore | invalid | *comparer | *transformer
+//	Filters:     *pathFilter | *valuesFilter
+type coreOption interface {
+	Option
+	isCore()
+}
+
+type core struct{}
+
+func (core) isCore() {}
+
+// Options is a list of Option values that also satisfies the Option interface.
+// Helper comparison packages may return an Options value when packing multiple
+// Option values into a single Option. When this package processes an Options,
+// it will be implicitly expanded into a flat list.
+//
+// Applying a filter on an Options is equivalent to applying that same filter
+// on all individual options held within.
+type Options []Option
+
+func (opts Options) filter(s *state, vx, vy reflect.Value, t reflect.Type) (out applicableOption) {
+	for _, opt := range opts {
+		switch opt := opt.filter(s, vx, vy, t); opt.(type) {
+		case ignore:
+			return ignore{} // Only ignore can short-circuit evaluation
+		case invalid:
+			out = invalid{} // Takes precedence over comparer or transformer
+		case *comparer, *transformer, Options:
+			switch out.(type) {
+			case nil:
+				out = opt
+			case invalid:
+				// Keep invalid
+			case *comparer, *transformer, Options:
+				out = Options{out, opt} // Conflicting comparers or transformers
+			}
+		}
+	}
+	return out
+}
+
+func (opts Options) apply(s *state, _, _ reflect.Value) {
+	const warning = "ambiguous set of applicable options"
+	const help = "consider using filters to ensure at most one Comparer or Transformer may apply"
+	var ss []string
+	for _, opt := range flattenOptions(nil, opts) {
+		ss = append(ss, fmt.Sprint(opt))
+	}
+	set := strings.Join(ss, "\n\t")
+	panic(fmt.Sprintf("%s at %#v:\n\t%s\n%s", warning, s.curPath, set, help))
+}
+
+func (opts Options) String() string {
+	var ss []string
+	for _, opt := range opts {
+		ss = append(ss, fmt.Sprint(opt))
+	}
+	return fmt.Sprintf("Options{%s}", strings.Join(ss, ", "))
+}
+
+// FilterPath returns a new Option where opt is only evaluated if filter f
+// returns true for the current Path in the value tree.
+//
+// The option passed in may be an Ignore, Transformer, Comparer, Options, or
+// a previously filtered Option.
+func FilterPath(f func(Path) bool, opt Option) Option {
+	if f == nil {
+		panic("invalid path filter function")
+	}
+	if opt := normalizeOption(opt); opt != nil {
+		return &pathFilter{fnc: f, opt: opt}
+	}
+	return nil
+}
+
+type pathFilter struct {
+	core
+	fnc func(Path) bool
+	opt Option
+}
+
+func (f pathFilter) filter(s *state, vx, vy reflect.Value, t reflect.Type) applicableOption {
+	if f.fnc(s.curPath) {
+		return f.opt.filter(s, vx, vy, t)
+	}
+	return nil
+}
+
+func (f pathFilter) String() string {
+	fn := getFuncName(reflect.ValueOf(f.fnc).Pointer())
+	return fmt.Sprintf("FilterPath(%s, %v)", fn, f.opt)
+}
+
+// FilterValues returns a new Option where opt is only evaluated if filter f,
+// which is a function of the form "func(T, T) bool", returns true for the
+// current pair of values being compared. If the type of the values is not
+// assignable to T, then this filter implicitly returns false.
+//
+// The filter function must be
+// symmetric (i.e., agnostic to the order of the inputs) and
+// deterministic (i.e., produces the same result when given the same inputs).
+// If T is an interface, it is possible that f is called with two values with
+// different concrete types that both implement T.
+//
+// The option passed in may be an Ignore, Transformer, Comparer, Options, or
+// a previously filtered Option.
+func FilterValues(f interface{}, opt Option) Option {
+	v := reflect.ValueOf(f)
+	if !function.IsType(v.Type(), function.ValueFilter) || v.IsNil() {
+		panic(fmt.Sprintf("invalid values filter function: %T", f))
+	}
+	if opt := normalizeOption(opt); opt != nil {
+		vf := &valuesFilter{fnc: v, opt: opt}
+		if ti := v.Type().In(0); ti.Kind() != reflect.Interface || ti.NumMethod() > 0 {
+			vf.typ = ti
+		}
+		return vf
+	}
+	return nil
+}
+
+type valuesFilter struct {
+	core
+	typ reflect.Type  // T
+	fnc reflect.Value // func(T, T) bool
+	opt Option
+}
+
+func (f valuesFilter) filter(s *state, vx, vy reflect.Value, t reflect.Type) applicableOption {
+	if !vx.IsValid() || !vy.IsValid() {
+		return invalid{}
+	}
+	if (f.typ == nil || t.AssignableTo(f.typ)) && s.callTTBFunc(f.fnc, vx, vy) {
+		return f.opt.filter(s, vx, vy, t)
+	}
+	return nil
+}
+
+func (f valuesFilter) String() string {
+	fn := getFuncName(f.fnc.Pointer())
+	return fmt.Sprintf("FilterValues(%s, %v)", fn, f.opt)
+}
+
+// Ignore is an Option that causes all comparisons to be ignored.
+// This value is intended to be combined with FilterPath or FilterValues.
+// It is an error to pass an unfiltered Ignore option to Equal.
+func Ignore() Option { return ignore{} }
+
+type ignore struct{ core }
+
+func (ignore) isFiltered() bool                                                     { return false }
+func (ignore) filter(_ *state, _, _ reflect.Value, _ reflect.Type) applicableOption { return ignore{} }
+func (ignore) apply(_ *state, _, _ reflect.Value)                                   { return }
+func (ignore) String() string                                                       { return "Ignore()" }
+
+// invalid is a sentinel Option type to indicate that some options could not
+// be evaluated due to unexported fields.
+type invalid struct{ core }
+
+func (invalid) filter(_ *state, _, _ reflect.Value, _ reflect.Type) applicableOption { return invalid{} }
+func (invalid) apply(s *state, _, _ reflect.Value) {
+	const help = "consider using AllowUnexported or cmpopts.IgnoreUnexported"
+	panic(fmt.Sprintf("cannot handle unexported field: %#v\n%s", s.curPath, help))
+}
+
+// Transformer returns an Option that applies a transformation function that
+// converts values of a certain type into that of another.
+//
+// The transformer f must be a function "func(T) R" that converts values of
+// type T to those of type R and is implicitly filtered to input values
+// assignable to T. The transformer must not mutate T in any way.
+//
+// To help prevent some cases of infinite recursive cycles applying the
+// same transform to the output of itself (e.g., in the case where the
+// input and output types are the same), an implicit filter is added such that
+// a transformer is applicable only if that exact transformer is not already
+// in the tail of the Path since the last non-Transform step.
+//
+// The name is a user provided label that is used as the Transform.Name in the
+// transformation PathStep. If empty, an arbitrary name is used.
+func Transformer(name string, f interface{}) Option {
+	v := reflect.ValueOf(f)
+	if !function.IsType(v.Type(), function.Transformer) || v.IsNil() {
+		panic(fmt.Sprintf("invalid transformer function: %T", f))
+	}
+	if name == "" {
+		name = "λ" // Lambda-symbol as place-holder for anonymous transformer
+	}
+	if !isValid(name) {
+		panic(fmt.Sprintf("invalid name: %q", name))
+	}
+	tr := &transformer{name: name, fnc: reflect.ValueOf(f)}
+	if ti := v.Type().In(0); ti.Kind() != reflect.Interface || ti.NumMethod() > 0 {
+		tr.typ = ti
+	}
+	return tr
+}
+
+type transformer struct {
+	core
+	name string
+	typ  reflect.Type  // T
+	fnc  reflect.Value // func(T) R
+}
+
+func (tr *transformer) isFiltered() bool { return tr.typ != nil }
+
+func (tr *transformer) filter(s *state, _, _ reflect.Value, t reflect.Type) applicableOption {
+	for i := len(s.curPath) - 1; i >= 0; i-- {
+		if t, ok := s.curPath[i].(*transform); !ok {
+			break // Hit most recent non-Transform step
+		} else if tr == t.trans {
+			return nil // Cannot directly use same Transform
+		}
+	}
+	if tr.typ == nil || t.AssignableTo(tr.typ) {
+		return tr
+	}
+	return nil
+}
+
+func (tr *transformer) apply(s *state, vx, vy reflect.Value) {
+	// Update path before calling the Transformer so that dynamic checks
+	// will use the updated path.
+	s.curPath.push(&transform{pathStep{tr.fnc.Type().Out(0)}, tr})
+	defer s.curPath.pop()
+
+	vx = s.callTRFunc(tr.fnc, vx)
+	vy = s.callTRFunc(tr.fnc, vy)
+	s.compareAny(vx, vy)
+}
+
+func (tr transformer) String() string {
+	return fmt.Sprintf("Transformer(%s, %s)", tr.name, getFuncName(tr.fnc.Pointer()))
+}
+
+// Comparer returns an Option that determines whether two values are equal
+// to each other.
+//
+// The comparer f must be a function "func(T, T) bool" and is implicitly
+// filtered to input values assignable to T. If T is an interface, it is
+// possible that f is called with two values of different concrete types that
+// both implement T.
+//
+// The equality function must be:
+//	• Symmetric: equal(x, y) == equal(y, x)
+//	• Deterministic: equal(x, y) == equal(x, y)
+//	• Pure: equal(x, y) does not modify x or y
+func Comparer(f interface{}) Option {
+	v := reflect.ValueOf(f)
+	if !function.IsType(v.Type(), function.Equal) || v.IsNil() {
+		panic(fmt.Sprintf("invalid comparer function: %T", f))
+	}
+	cm := &comparer{fnc: v}
+	if ti := v.Type().In(0); ti.Kind() != reflect.Interface || ti.NumMethod() > 0 {
+		cm.typ = ti
+	}
+	return cm
+}
+
+type comparer struct {
+	core
+	typ reflect.Type  // T
+	fnc reflect.Value // func(T, T) bool
+}
+
+func (cm *comparer) isFiltered() bool { return cm.typ != nil }
+
+func (cm *comparer) filter(_ *state, _, _ reflect.Value, t reflect.Type) applicableOption {
+	if cm.typ == nil || t.AssignableTo(cm.typ) {
+		return cm
+	}
+	return nil
+}
+
+func (cm *comparer) apply(s *state, vx, vy reflect.Value) {
+	eq := s.callTTBFunc(cm.fnc, vx, vy)
+	s.report(eq, vx, vy)
+}
+
+func (cm comparer) String() string {
+	return fmt.Sprintf("Comparer(%s)", getFuncName(cm.fnc.Pointer()))
+}
+
+// AllowUnexported returns an Option that forcibly allows operations on
+// unexported fields in certain structs, which are specified by passing in a
+// value of each struct type.
+//
+// Users of this option must understand that comparing on unexported fields
+// from external packages is not safe since changes in the internal
+// implementation of some external package may cause the result of Equal
+// to unexpectedly change. However, it may be valid to use this option on types
+// defined in an internal package where the semantic meaning of an unexported
+// field is in the control of the user.
+//
+// For some cases, a custom Comparer should be used instead that defines
+// equality as a function of the public API of a type rather than the underlying
+// unexported implementation.
+//
+// For example, the reflect.Type documentation defines equality to be determined
+// by the == operator on the interface (essentially performing a shallow pointer
+// comparison) and most attempts to compare *regexp.Regexp types are interested
+// in only checking that the regular expression strings are equal.
+// Both of these are accomplished using Comparers:
+//
+//	Comparer(func(x, y reflect.Type) bool { return x == y })
+//	Comparer(func(x, y *regexp.Regexp) bool { return x.String() == y.String() })
+//
+// In other cases, the cmpopts.IgnoreUnexported option can be used to ignore
+// all unexported fields on specified struct types.
+func AllowUnexported(types ...interface{}) Option {
+	if !supportAllowUnexported {
+		panic("AllowUnexported is not supported on purego builds, Google App Engine Standard, or GopherJS")
+	}
+	m := make(map[reflect.Type]bool)
+	for _, typ := range types {
+		t := reflect.TypeOf(typ)
+		if t.Kind() != reflect.Struct {
+			panic(fmt.Sprintf("invalid struct type: %T", typ))
+		}
+		m[t] = true
+	}
+	return visibleStructs(m)
+}
+
+type visibleStructs map[reflect.Type]bool
+
+func (visibleStructs) filter(_ *state, _, _ reflect.Value, _ reflect.Type) applicableOption {
+	panic("not implemented")
+}
+
+// reporter is an Option that configures how differences are reported.
+type reporter interface {
+	// TODO: Not exported yet.
+	//
+	// Perhaps add PushStep and PopStep and change Report to only accept
+	// a PathStep instead of the full-path? Adding a PushStep and PopStep makes
+	// it clear that we are traversing the value tree in a depth-first-search
+	// manner, which has an effect on how values are printed.
+
+	Option
+
+	// Report is called for every comparison made and will be provided with
+	// the two values being compared, the equality result, and the
+	// current path in the value tree. It is possible for x or y to be an
+	// invalid reflect.Value if one of the values is non-existent;
+	// which is possible with maps and slices.
+	Report(x, y reflect.Value, eq bool, p Path)
+}
+
+// normalizeOption normalizes the input options such that all Options groups
+// are flattened and groups with a single element are reduced to that element.
+// Only coreOptions and Options containing coreOptions are allowed.
+func normalizeOption(src Option) Option {
+	switch opts := flattenOptions(nil, Options{src}); len(opts) {
+	case 0:
+		return nil
+	case 1:
+		return opts[0]
+	default:
+		return opts
+	}
+}
+
+// flattenOptions copies all options in src to dst as a flat list.
+// Only coreOptions and Options containing coreOptions are allowed.
+func flattenOptions(dst, src Options) Options {
+	for _, opt := range src {
+		switch opt := opt.(type) {
+		case nil:
+			continue
+		case Options:
+			dst = flattenOptions(dst, opt)
+		case coreOption:
+			dst = append(dst, opt)
+		default:
+			panic(fmt.Sprintf("invalid option type: %T", opt))
+		}
+	}
+	return dst
+}
+
+// getFuncName returns a short function name from the pointer.
+// The string parsing logic works up until Go1.9.
+func getFuncName(p uintptr) string {
+	fnc := runtime.FuncForPC(p)
+	if fnc == nil {
+		return "<unknown>"
+	}
+	name := fnc.Name() // E.g., "long/path/name/mypkg.(mytype).(long/path/name/mypkg.myfunc)-fm"
+	if strings.HasSuffix(name, ")-fm") || strings.HasSuffix(name, ")·fm") {
+		// Strip the package name from method name.
+		name = strings.TrimSuffix(name, ")-fm")
+		name = strings.TrimSuffix(name, ")·fm")
+		if i := strings.LastIndexByte(name, '('); i >= 0 {
+			methodName := name[i+1:] // E.g., "long/path/name/mypkg.myfunc"
+			if j := strings.LastIndexByte(methodName, '.'); j >= 0 {
+				methodName = methodName[j+1:] // E.g., "myfunc"
+			}
+			name = name[:i] + methodName // E.g., "long/path/name/mypkg.(mytype)." + "myfunc"
+		}
+	}
+	if i := strings.LastIndexByte(name, '/'); i >= 0 {
+		// Strip the package name.
+		name = name[i+1:] // E.g., "mypkg.(mytype).myfunc"
+	}
+	return name
+}

libnetwork/vendor/github.com/google/go-cmp/cmp/path.go

@@ -0,0 +1,309 @@
+// Copyright 2017, The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE.md file.
+
+package cmp
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+	"unicode"
+	"unicode/utf8"
+)
+
+type (
+	// Path is a list of PathSteps describing the sequence of operations to get
+	// from some root type to the current position in the value tree.
+	// The first Path element is always an operation-less PathStep that exists
+	// simply to identify the initial type.
+	//
+	// When traversing structs with embedded structs, the embedded struct will
+	// always be accessed as a field before traversing the fields of the
+	// embedded struct themselves. That is, an exported field from the
+	// embedded struct will never be accessed directly from the parent struct.
+	Path []PathStep
+
+	// PathStep is a union-type for specific operations to traverse
+	// a value's tree structure. Users of this package never need to implement
+	// these types as values of this type will be returned by this package.
+	PathStep interface {
+		String() string
+		Type() reflect.Type // Resulting type after performing the path step
+		isPathStep()
+	}
+
+	// SliceIndex is an index operation on a slice or array at some index Key.
+	SliceIndex interface {
+		PathStep
+		Key() int // May return -1 if in a split state
+
+		// SplitKeys returns the indexes for indexing into slices in the
+		// x and y values, respectively. These indexes may differ due to the
+		// insertion or removal of an element in one of the slices, causing
+		// all of the indexes to be shifted. If an index is -1, then that
+		// indicates that the element does not exist in the associated slice.
+		//
+		// Key is guaranteed to return -1 if and only if the indexes returned
+		// by SplitKeys are not the same. SplitKeys will never return -1 for
+		// both indexes.
+		SplitKeys() (x int, y int)
+
+		isSliceIndex()
+	}
+	// MapIndex is an index operation on a map at some index Key.
+	MapIndex interface {
+		PathStep
+		Key() reflect.Value
+		isMapIndex()
+	}
+	// TypeAssertion represents a type assertion on an interface.
+	TypeAssertion interface {
+		PathStep
+		isTypeAssertion()
+	}
+	// StructField represents a struct field access on a field called Name.
+	StructField interface {
+		PathStep
+		Name() string
+		Index() int
+		isStructField()
+	}
+	// Indirect represents pointer indirection on the parent type.
+	Indirect interface {
+		PathStep
+		isIndirect()
+	}
+	// Transform is a transformation from the parent type to the current type.
+	Transform interface {
+		PathStep
+		Name() string
+		Func() reflect.Value
+
+		// Option returns the originally constructed Transformer option.
+		// The == operator can be used to detect the exact option used.
+		Option() Option
+
+		isTransform()
+	}
+)
+
+func (pa *Path) push(s PathStep) {
+	*pa = append(*pa, s)
+}
+
+func (pa *Path) pop() {
+	*pa = (*pa)[:len(*pa)-1]
+}
+
+// Last returns the last PathStep in the Path.
+// If the path is empty, this returns a non-nil PathStep that reports a nil Type.
+func (pa Path) Last() PathStep {
+	return pa.Index(-1)
+}
+
+// Index returns the ith step in the Path and supports negative indexing.
+// A negative index starts counting from the tail of the Path such that -1
+// refers to the last step, -2 refers to the second-to-last step, and so on.
+// If index is invalid, this returns a non-nil PathStep that reports a nil Type.
+func (pa Path) Index(i int) PathStep {
+	if i < 0 {
+		i = len(pa) + i
+	}
+	if i < 0 || i >= len(pa) {
+		return pathStep{}
+	}
+	return pa[i]
+}
+
+// String returns the simplified path to a node.
+// The simplified path only contains struct field accesses.
+//
+// For example:
+//	MyMap.MySlices.MyField
+func (pa Path) String() string {
+	var ss []string
+	for _, s := range pa {
+		if _, ok := s.(*structField); ok {
+			ss = append(ss, s.String())
+		}
+	}
+	return strings.TrimPrefix(strings.Join(ss, ""), ".")
+}
+
+// GoString returns the path to a specific node using Go syntax.
+//
+// For example:
+//	(*root.MyMap["key"].(*mypkg.MyStruct).MySlices)[2][3].MyField
+func (pa Path) GoString() string {
+	var ssPre, ssPost []string
+	var numIndirect int
+	for i, s := range pa {
+		var nextStep PathStep
+		if i+1 < len(pa) {
+			nextStep = pa[i+1]
+		}
+		switch s := s.(type) {
+		case *indirect:
+			numIndirect++
+			pPre, pPost := "(", ")"
+			switch nextStep.(type) {
+			case *indirect:
+				continue // Next step is indirection, so let them batch up
+			case *structField:
+				numIndirect-- // Automatic indirection on struct fields
+			case nil:
+				pPre, pPost = "", "" // Last step; no need for parenthesis
+			}
+			if numIndirect > 0 {
+				ssPre = append(ssPre, pPre+strings.Repeat("*", numIndirect))
+				ssPost = append(ssPost, pPost)
+			}
+			numIndirect = 0
+			continue
+		case *transform:
+			ssPre = append(ssPre, s.trans.name+"(")
+			ssPost = append(ssPost, ")")
+			continue
+		case *typeAssertion:
+			// As a special-case, elide type assertions on anonymous types
+			// since they are typically generated dynamically and can be very
+			// verbose. For example, some transforms return interface{} because
+			// of Go's lack of generics, but typically take in and return the
+			// exact same concrete type.
+			if s.Type().PkgPath() == "" {
+				continue
+			}
+		}
+		ssPost = append(ssPost, s.String())
+	}
+	for i, j := 0, len(ssPre)-1; i < j; i, j = i+1, j-1 {
+		ssPre[i], ssPre[j] = ssPre[j], ssPre[i]
+	}
+	return strings.Join(ssPre, "") + strings.Join(ssPost, "")
+}
+
+type (
+	pathStep struct {
+		typ reflect.Type
+	}
+
+	sliceIndex struct {
+		pathStep
+		xkey, ykey int
+	}
+	mapIndex struct {
+		pathStep
+		key reflect.Value
+	}
+	typeAssertion struct {
+		pathStep
+	}
+	structField struct {
+		pathStep
+		name string
+		idx  int
+
+		// These fields are used for forcibly accessing an unexported field.
+		// pvx, pvy, and field are only valid if unexported is true.
+		unexported bool
+		force      bool                // Forcibly allow visibility
+		pvx, pvy   reflect.Value       // Parent values
+		field      reflect.StructField // Field information
+	}
+	indirect struct {
+		pathStep
+	}
+	transform struct {
+		pathStep
+		trans *transformer
+	}
+)
+
+func (ps pathStep) Type() reflect.Type { return ps.typ }
+func (ps pathStep) String() string {
+	if ps.typ == nil {
+		return "<nil>"
+	}
+	s := ps.typ.String()
+	if s == "" || strings.ContainsAny(s, "{}\n") {
+		return "root" // Type too simple or complex to print
+	}
+	return fmt.Sprintf("{%s}", s)
+}
+
+func (si sliceIndex) String() string {
+	switch {
+	case si.xkey == si.ykey:
+		return fmt.Sprintf("[%d]", si.xkey)
+	case si.ykey == -1:
+		// [5->?] means "I don't know where X[5] went"
+		return fmt.Sprintf("[%d->?]", si.xkey)
+	case si.xkey == -1:
+		// [?->3] means "I don't know where Y[3] came from"
+		return fmt.Sprintf("[?->%d]", si.ykey)
+	default:
+		// [5->3] means "X[5] moved to Y[3]"
+		return fmt.Sprintf("[%d->%d]", si.xkey, si.ykey)
+	}
+}
+func (mi mapIndex) String() string      { return fmt.Sprintf("[%#v]", mi.key) }
+func (ta typeAssertion) String() string { return fmt.Sprintf(".(%v)", ta.typ) }
+func (sf structField) String() string   { return fmt.Sprintf(".%s", sf.name) }
+func (in indirect) String() string      { return "*" }
+func (tf transform) String() string     { return fmt.Sprintf("%s()", tf.trans.name) }
+
+func (si sliceIndex) Key() int {
+	if si.xkey != si.ykey {
+		return -1
+	}
+	return si.xkey
+}
+func (si sliceIndex) SplitKeys() (x, y int) { return si.xkey, si.ykey }
+func (mi mapIndex) Key() reflect.Value      { return mi.key }
+func (sf structField) Name() string         { return sf.name }
+func (sf structField) Index() int           { return sf.idx }
+func (tf transform) Name() string           { return tf.trans.name }
+func (tf transform) Func() reflect.Value    { return tf.trans.fnc }
+func (tf transform) Option() Option         { return tf.trans }
+
+func (pathStep) isPathStep()           {}
+func (sliceIndex) isSliceIndex()       {}
+func (mapIndex) isMapIndex()           {}
+func (typeAssertion) isTypeAssertion() {}
+func (structField) isStructField()     {}
+func (indirect) isIndirect()           {}
+func (transform) isTransform()         {}
+
+var (
+	_ SliceIndex    = sliceIndex{}
+	_ MapIndex      = mapIndex{}
+	_ TypeAssertion = typeAssertion{}
+	_ StructField   = structField{}
+	_ Indirect      = indirect{}
+	_ Transform     = transform{}
+
+	_ PathStep = sliceIndex{}
+	_ PathStep = mapIndex{}
+	_ PathStep = typeAssertion{}
+	_ PathStep = structField{}
+	_ PathStep = indirect{}
+	_ PathStep = transform{}
+)
+
+// isExported reports whether the identifier is exported.
+func isExported(id string) bool {
+	r, _ := utf8.DecodeRuneInString(id)
+	return unicode.IsUpper(r)
+}
+
+// isValid reports whether the identifier is valid.
+// Empty and underscore-only strings are not valid.
+func isValid(id string) bool {
+	ok := id != "" && id != "_"
+	for j, c := range id {
+		ok = ok && (j > 0 || !unicode.IsDigit(c))
+		ok = ok && (c == '_' || unicode.IsLetter(c) || unicode.IsDigit(c))
+	}
+	return ok
+}

libnetwork/vendor/github.com/google/go-cmp/cmp/reporter.go

@@ -0,0 +1,53 @@
+// Copyright 2017, The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE.md file.
+
+package cmp
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+
+	"github.com/google/go-cmp/cmp/internal/value"
+)
+
+type defaultReporter struct {
+	Option
+	diffs  []string // List of differences, possibly truncated
+	ndiffs int      // Total number of differences
+	nbytes int      // Number of bytes in diffs
+	nlines int      // Number of lines in diffs
+}
+
+var _ reporter = (*defaultReporter)(nil)
+
+func (r *defaultReporter) Report(x, y reflect.Value, eq bool, p Path) {
+	if eq {
+		return // Ignore equal results
+	}
+	const maxBytes = 4096
+	const maxLines = 256
+	r.ndiffs++
+	if r.nbytes < maxBytes && r.nlines < maxLines {
+		sx := value.Format(x, value.FormatConfig{UseStringer: true})
+		sy := value.Format(y, value.FormatConfig{UseStringer: true})
+		if sx == sy {
+			// Unhelpful output, so use more exact formatting.
+			sx = value.Format(x, value.FormatConfig{PrintPrimitiveType: true})
+			sy = value.Format(y, value.FormatConfig{PrintPrimitiveType: true})
+		}
+		s := fmt.Sprintf("%#v:\n\t-: %s\n\t+: %s\n", p, sx, sy)
+		r.diffs = append(r.diffs, s)
+		r.nbytes += len(s)
+		r.nlines += strings.Count(s, "\n")
+	}
+}
+
+func (r *defaultReporter) String() string {
+	s := strings.Join(r.diffs, "")
+	if r.ndiffs == len(r.diffs) {
+		return s
+	}
+	return fmt.Sprintf("%s... %d more differences ...", s, r.ndiffs-len(r.diffs))
+}

libnetwork/vendor/github.com/google/go-cmp/cmp/unsafe_panic.go

@@ -0,0 +1,15 @@
+// Copyright 2017, The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE.md file.
+
+// +build purego appengine js
+
+package cmp
+
+import "reflect"
+
+const supportAllowUnexported = false
+
+func unsafeRetrieveField(reflect.Value, reflect.StructField) reflect.Value {
+	panic("unsafeRetrieveField is not implemented")
+}

libnetwork/vendor/github.com/google/go-cmp/cmp/unsafe_reflect.go

@@ -0,0 +1,23 @@
+// Copyright 2017, The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE.md file.
+
+// +build !purego,!appengine,!js
+
+package cmp
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+const supportAllowUnexported = true
+
+// unsafeRetrieveField uses unsafe to forcibly retrieve any field from a struct
+// such that the value has read-write permissions.
+//
+// The parent struct, v, must be addressable, while f must be a StructField
+// describing the field to retrieve.
+func unsafeRetrieveField(v reflect.Value, f reflect.StructField) reflect.Value {
+	return reflect.NewAt(f.Type, unsafe.Pointer(v.UnsafeAddr()+f.Offset)).Elem()
+}

libnetwork/vendor/github.com/pmezard/go-difflib/README.md

@@ -1,50 +0,0 @@
-go-difflib
-==========
-
-[![Build Status](https://travis-ci.org/pmezard/go-difflib.png?branch=master)](https://travis-ci.org/pmezard/go-difflib)
-[![GoDoc](https://godoc.org/github.com/pmezard/go-difflib/difflib?status.svg)](https://godoc.org/github.com/pmezard/go-difflib/difflib)
-
-Go-difflib is a partial port of python 3 difflib package. Its main goal
-was to make unified and context diff available in pure Go, mostly for
-testing purposes.
-
-The following class and functions (and related tests) have be ported:
-
-* `SequenceMatcher`
-* `unified_diff()`
-* `context_diff()`
-
-## Installation
-
-```bash
-$ go get github.com/pmezard/go-difflib/difflib
-```
-
-### Quick Start
-
-Diffs are configured with Unified (or ContextDiff) structures, and can
-be output to an io.Writer or returned as a string.
-
-```Go
-diff := UnifiedDiff{
-    A:        difflib.SplitLines("foo\nbar\n"),
-    B:        difflib.SplitLines("foo\nbaz\n"),
-    FromFile: "Original",
-    ToFile:   "Current",
-    Context:  3,
-}
-text, _ := GetUnifiedDiffString(diff)
-fmt.Printf(text)
-```
-
-would output:
-
-```
---- Original
-+++ Current
-@@ -1,3 +1,3 @@
- foo
--bar
-+baz
-```
-

libnetwork/vendor/github.com/stretchr/testify/LICENSE

@@ -1,22 +0,0 @@
-Copyright (c) 2012 - 2013 Mat Ryer and Tyler Bunnell
-
-Please consider promoting this project if you find it useful.
-
-Permission is hereby granted, free of charge, to any person 
-obtaining a copy of this software and associated documentation 
-files (the "Software"), to deal in the Software without restriction, 
-including without limitation the rights to use, copy, modify, merge, 
-publish, distribute, sublicense, and/or sell copies of the Software, 
-and to permit persons to whom the Software is furnished to do so, 
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 
-OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
-IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
-DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT 
-OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
-OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

libnetwork/vendor/github.com/stretchr/testify/README.md

@@ -1,331 +0,0 @@
-Testify - Thou Shalt Write Tests
-================================
-
-[![Build Status](https://travis-ci.org/stretchr/testify.svg)](https://travis-ci.org/stretchr/testify) [![Go Report Card](https://goreportcard.com/badge/github.com/stretchr/testify)](https://goreportcard.com/report/github.com/stretchr/testify) [![GoDoc](https://godoc.org/github.com/stretchr/testify?status.svg)](https://godoc.org/github.com/stretchr/testify)
-
-Go code (golang) set of packages that provide many tools for testifying that your code will behave as you intend.
-
-Features include:
-
-  * [Easy assertions](#assert-package)
-  * [Mocking](#mock-package)
-  * [Testing suite interfaces and functions](#suite-package)
-
-Get started:
-
-  * Install testify with [one line of code](#installation), or [update it with another](#staying-up-to-date)
-  * For an introduction to writing test code in Go, see http://golang.org/doc/code.html#Testing
-  * Check out the API Documentation http://godoc.org/github.com/stretchr/testify
-  * To make your testing life easier, check out our other project, [gorc](http://github.com/stretchr/gorc)
-  * A little about [Test-Driven Development (TDD)](http://en.wikipedia.org/wiki/Test-driven_development)
-
-
-
-[`assert`](http://godoc.org/github.com/stretchr/testify/assert "API documentation") package
--------------------------------------------------------------------------------------------
-
-The `assert` package provides some helpful methods that allow you to write better test code in Go.
-
-  * Prints friendly, easy to read failure descriptions
-  * Allows for very readable code
-  * Optionally annotate each assertion with a message
-
-See it in action:
-
-```go
-package yours
-
-import (
-  "testing"
-  "github.com/stretchr/testify/assert"
-)
-
-func TestSomething(t *testing.T) {
-
-  // assert equality
-  assert.Equal(t, 123, 123, "they should be equal")
-
-  // assert inequality
-  assert.NotEqual(t, 123, 456, "they should not be equal")
-
-  // assert for nil (good for errors)
-  assert.Nil(t, object)
-
-  // assert for not nil (good when you expect something)
-  if assert.NotNil(t, object) {
-
-    // now we know that object isn't nil, we are safe to make
-    // further assertions without causing any errors
-    assert.Equal(t, "Something", object.Value)
-
-  }
-
-}
-```
-
-  * Every assert func takes the `testing.T` object as the first argument.  This is how it writes the errors out through the normal `go test` capabilities.
-  * Every assert func returns a bool indicating whether the assertion was successful or not, this is useful for if you want to go on making further assertions under certain conditions.
-
-if you assert many times, use the below:
-
-```go
-package yours
-
-import (
-  "testing"
-  "github.com/stretchr/testify/assert"
-)
-
-func TestSomething(t *testing.T) {
-  assert := assert.New(t)
-
-  // assert equality
-  assert.Equal(123, 123, "they should be equal")
-
-  // assert inequality
-  assert.NotEqual(123, 456, "they should not be equal")
-
-  // assert for nil (good for errors)
-  assert.Nil(object)
-
-  // assert for not nil (good when you expect something)
-  if assert.NotNil(object) {
-
-    // now we know that object isn't nil, we are safe to make
-    // further assertions without causing any errors
-    assert.Equal("Something", object.Value)
-  }
-}
-```
-
-[`require`](http://godoc.org/github.com/stretchr/testify/require "API documentation") package
----------------------------------------------------------------------------------------------
-
-The `require` package provides same global functions as the `assert` package, but instead of returning a boolean result they terminate current test.
-
-See [t.FailNow](http://golang.org/pkg/testing/#T.FailNow) for details.
-
-[`mock`](http://godoc.org/github.com/stretchr/testify/mock "API documentation") package
-----------------------------------------------------------------------------------------
-
-The `mock` package provides a mechanism for easily writing mock objects that can be used in place of real objects when writing test code.
-
-An example test function that tests a piece of code that relies on an external object `testObj`, can setup expectations (testify) and assert that they indeed happened:
-
-```go
-package yours
-
-import (
-  "testing"
-  "github.com/stretchr/testify/mock"
-)
-
-/*
-  Test objects
-*/
-
-// MyMockedObject is a mocked object that implements an interface
-// that describes an object that the code I am testing relies on.
-type MyMockedObject struct{
-  mock.Mock
-}
-
-// DoSomething is a method on MyMockedObject that implements some interface
-// and just records the activity, and returns what the Mock object tells it to.
-//
-// In the real object, this method would do something useful, but since this
-// is a mocked object - we're just going to stub it out.
-//
-// NOTE: This method is not being tested here, code that uses this object is.
-func (m *MyMockedObject) DoSomething(number int) (bool, error) {
-
-  args := m.Called(number)
-  return args.Bool(0), args.Error(1)
-
-}
-
-/*
-  Actual test functions
-*/
-
-// TestSomething is an example of how to use our test object to
-// make assertions about some target code we are testing.
-func TestSomething(t *testing.T) {
-
-  // create an instance of our test object
-  testObj := new(MyMockedObject)
-
-  // setup expectations
-  testObj.On("DoSomething", 123).Return(true, nil)
-
-  // call the code we are testing
-  targetFuncThatDoesSomethingWithObj(testObj)
-
-  // assert that the expectations were met
-  testObj.AssertExpectations(t)
-
-
-}
-
-// TestSomethingElse is a second example of how to use our test object to
-// make assertions about some target code we are testing.
-// This time using a placeholder. Placeholders might be used when the
-// data being passed in is normally dynamically generated and cannot be
-// predicted beforehand (eg. containing hashes that are time sensitive)
-func TestSomethingElse(t *testing.T) {
-
-  // create an instance of our test object
-  testObj := new(MyMockedObject)
-
-  // setup expectations with a placeholder in the argument list
-  testObj.On("DoSomething", mock.Anything).Return(true, nil)
-
-  // call the code we are testing
-  targetFuncThatDoesSomethingWithObj(testObj)
-
-  // assert that the expectations were met
-  testObj.AssertExpectations(t)
-
-
-}
-```
-
-For more information on how to write mock code, check out the [API documentation for the `mock` package](http://godoc.org/github.com/stretchr/testify/mock).
-
-You can use the [mockery tool](http://github.com/vektra/mockery) to autogenerate the mock code against an interface as well, making using mocks much quicker.
-
-[`suite`](http://godoc.org/github.com/stretchr/testify/suite "API documentation") package
------------------------------------------------------------------------------------------
-
-The `suite` package provides functionality that you might be used to from more common object oriented languages.  With it, you can build a testing suite as a struct, build setup/teardown methods and testing methods on your struct, and run them with 'go test' as per normal.
-
-An example suite is shown below:
-
-```go
-// Basic imports
-import (
-    "testing"
-    "github.com/stretchr/testify/assert"
-    "github.com/stretchr/testify/suite"
-)
-
-// Define the suite, and absorb the built-in basic suite
-// functionality from testify - including a T() method which
-// returns the current testing context
-type ExampleTestSuite struct {
-    suite.Suite
-    VariableThatShouldStartAtFive int
-}
-
-// Make sure that VariableThatShouldStartAtFive is set to five
-// before each test
-func (suite *ExampleTestSuite) SetupTest() {
-    suite.VariableThatShouldStartAtFive = 5
-}
-
-// All methods that begin with "Test" are run as tests within a
-// suite.
-func (suite *ExampleTestSuite) TestExample() {
-    assert.Equal(suite.T(), 5, suite.VariableThatShouldStartAtFive)
-}
-
-// In order for 'go test' to run this suite, we need to create
-// a normal test function and pass our suite to suite.Run
-func TestExampleTestSuite(t *testing.T) {
-    suite.Run(t, new(ExampleTestSuite))
-}
-```
-
-For a more complete example, using all of the functionality provided by the suite package, look at our [example testing suite](https://github.com/stretchr/testify/blob/master/suite/suite_test.go)
-
-For more information on writing suites, check out the [API documentation for the `suite` package](http://godoc.org/github.com/stretchr/testify/suite).
-
-`Suite` object has assertion methods:
-
-```go
-// Basic imports
-import (
-    "testing"
-    "github.com/stretchr/testify/suite"
-)
-
-// Define the suite, and absorb the built-in basic suite
-// functionality from testify - including assertion methods.
-type ExampleTestSuite struct {
-    suite.Suite
-    VariableThatShouldStartAtFive int
-}
-
-// Make sure that VariableThatShouldStartAtFive is set to five
-// before each test
-func (suite *ExampleTestSuite) SetupTest() {
-    suite.VariableThatShouldStartAtFive = 5
-}
-
-// All methods that begin with "Test" are run as tests within a
-// suite.
-func (suite *ExampleTestSuite) TestExample() {
-    suite.Equal(suite.VariableThatShouldStartAtFive, 5)
-}
-
-// In order for 'go test' to run this suite, we need to create
-// a normal test function and pass our suite to suite.Run
-func TestExampleTestSuite(t *testing.T) {
-    suite.Run(t, new(ExampleTestSuite))
-}
-```
-
-------
-
-Installation
-============
-
-To install Testify, use `go get`:
-
-    go get github.com/stretchr/testify
-
-This will then make the following packages available to you:
-
-    github.com/stretchr/testify/assert
-    github.com/stretchr/testify/mock
-    github.com/stretchr/testify/http
-
-Import the `testify/assert` package into your code using this template:
-
-```go
-package yours
-
-import (
-  "testing"
-  "github.com/stretchr/testify/assert"
-)
-
-func TestSomething(t *testing.T) {
-
-  assert.True(t, true, "True is true!")
-
-}
-```
-
-------
-
-Staying up to date
-==================
-
-To update Testify to the latest version, use `go get -u github.com/stretchr/testify`.
-
-------
-
-Supported go versions
-==================
-
-We support the three major Go versions, which are 1.8, 1.9 and 1.10 at the moment.
-
-------
-
-Contributing
-============
-
-Please feel free to submit issues, fork the repository and send pull requests!
-
-When submitting an issue, we ask that you please include a complete test function that demonstrates the issue.  Extra credit for those using Testify to write the test code that demonstrates it.

libnetwork/vendor/github.com/stretchr/testify/assert/assertion_format.go

@@ -1,484 +0,0 @@
-/*
-* CODE GENERATED AUTOMATICALLY WITH github.com/stretchr/testify/_codegen
-* THIS FILE MUST NOT BE EDITED BY HAND
- */
-
-package assert
-
-import (
-	http "net/http"
-	url "net/url"
-	time "time"
-)
-
-// Conditionf uses a Comparison to assert a complex condition.
-func Conditionf(t TestingT, comp Comparison, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return Condition(t, comp, append([]interface{}{msg}, args...)...)
-}
-
-// Containsf asserts that the specified string, list(array, slice...) or map contains the
-// specified substring or element.
-//
-//    assert.Containsf(t, "Hello World", "World", "error message %s", "formatted")
-//    assert.Containsf(t, ["Hello", "World"], "World", "error message %s", "formatted")
-//    assert.Containsf(t, {"Hello": "World"}, "Hello", "error message %s", "formatted")
-func Containsf(t TestingT, s interface{}, contains interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return Contains(t, s, contains, append([]interface{}{msg}, args...)...)
-}
-
-// DirExistsf checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
-func DirExistsf(t TestingT, path string, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return DirExists(t, path, append([]interface{}{msg}, args...)...)
-}
-
-// ElementsMatchf asserts that the specified listA(array, slice...) is equal to specified
-// listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
-// the number of appearances of each of them in both lists should match.
-//
-// assert.ElementsMatchf(t, [1, 3, 2, 3], [1, 3, 3, 2], "error message %s", "formatted")
-func ElementsMatchf(t TestingT, listA interface{}, listB interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return ElementsMatch(t, listA, listB, append([]interface{}{msg}, args...)...)
-}
-
-// Emptyf asserts that the specified object is empty.  I.e. nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  assert.Emptyf(t, obj, "error message %s", "formatted")
-func Emptyf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return Empty(t, object, append([]interface{}{msg}, args...)...)
-}
-
-// Equalf asserts that two objects are equal.
-//
-//    assert.Equalf(t, 123, 123, "error message %s", "formatted")
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses). Function equality
-// cannot be determined and will always fail.
-func Equalf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return Equal(t, expected, actual, append([]interface{}{msg}, args...)...)
-}
-
-// EqualErrorf asserts that a function returned an error (i.e. not `nil`)
-// and that it is equal to the provided error.
-//
-//   actualObj, err := SomeFunction()
-//   assert.EqualErrorf(t, err,  expectedErrorString, "error message %s", "formatted")
-func EqualErrorf(t TestingT, theError error, errString string, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return EqualError(t, theError, errString, append([]interface{}{msg}, args...)...)
-}
-
-// EqualValuesf asserts that two objects are equal or convertable to the same types
-// and equal.
-//
-//    assert.EqualValuesf(t, uint32(123, "error message %s", "formatted"), int32(123))
-func EqualValuesf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return EqualValues(t, expected, actual, append([]interface{}{msg}, args...)...)
-}
-
-// Errorf asserts that a function returned an error (i.e. not `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if assert.Errorf(t, err, "error message %s", "formatted") {
-// 	   assert.Equal(t, expectedErrorf, err)
-//   }
-func Errorf(t TestingT, err error, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return Error(t, err, append([]interface{}{msg}, args...)...)
-}
-
-// Exactlyf asserts that two objects are equal in value and type.
-//
-//    assert.Exactlyf(t, int32(123, "error message %s", "formatted"), int64(123))
-func Exactlyf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return Exactly(t, expected, actual, append([]interface{}{msg}, args...)...)
-}
-
-// Failf reports a failure through
-func Failf(t TestingT, failureMessage string, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return Fail(t, failureMessage, append([]interface{}{msg}, args...)...)
-}
-
-// FailNowf fails test
-func FailNowf(t TestingT, failureMessage string, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return FailNow(t, failureMessage, append([]interface{}{msg}, args...)...)
-}
-
-// Falsef asserts that the specified value is false.
-//
-//    assert.Falsef(t, myBool, "error message %s", "formatted")
-func Falsef(t TestingT, value bool, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return False(t, value, append([]interface{}{msg}, args...)...)
-}
-
-// FileExistsf checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
-func FileExistsf(t TestingT, path string, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return FileExists(t, path, append([]interface{}{msg}, args...)...)
-}
-
-// HTTPBodyContainsf asserts that a specified handler returns a
-// body that contains a string.
-//
-//  assert.HTTPBodyContainsf(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPBodyContainsf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return HTTPBodyContains(t, handler, method, url, values, str, append([]interface{}{msg}, args...)...)
-}
-
-// HTTPBodyNotContainsf asserts that a specified handler returns a
-// body that does not contain a string.
-//
-//  assert.HTTPBodyNotContainsf(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPBodyNotContainsf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return HTTPBodyNotContains(t, handler, method, url, values, str, append([]interface{}{msg}, args...)...)
-}
-
-// HTTPErrorf asserts that a specified handler returns an error status code.
-//
-//  assert.HTTPErrorf(t, myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
-func HTTPErrorf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return HTTPError(t, handler, method, url, values, append([]interface{}{msg}, args...)...)
-}
-
-// HTTPRedirectf asserts that a specified handler returns a redirect status code.
-//
-//  assert.HTTPRedirectf(t, myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
-func HTTPRedirectf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return HTTPRedirect(t, handler, method, url, values, append([]interface{}{msg}, args...)...)
-}
-
-// HTTPSuccessf asserts that a specified handler returns a success status code.
-//
-//  assert.HTTPSuccessf(t, myHandler, "POST", "http://www.google.com", nil, "error message %s", "formatted")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPSuccessf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return HTTPSuccess(t, handler, method, url, values, append([]interface{}{msg}, args...)...)
-}
-
-// Implementsf asserts that an object is implemented by the specified interface.
-//
-//    assert.Implementsf(t, (*MyInterface, "error message %s", "formatted")(nil), new(MyObject))
-func Implementsf(t TestingT, interfaceObject interface{}, object interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return Implements(t, interfaceObject, object, append([]interface{}{msg}, args...)...)
-}
-
-// InDeltaf asserts that the two numerals are within delta of each other.
-//
-// 	 assert.InDeltaf(t, math.Pi, (22 / 7.0, "error message %s", "formatted"), 0.01)
-func InDeltaf(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return InDelta(t, expected, actual, delta, append([]interface{}{msg}, args...)...)
-}
-
-// InDeltaMapValuesf is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
-func InDeltaMapValuesf(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return InDeltaMapValues(t, expected, actual, delta, append([]interface{}{msg}, args...)...)
-}
-
-// InDeltaSlicef is the same as InDelta, except it compares two slices.
-func InDeltaSlicef(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return InDeltaSlice(t, expected, actual, delta, append([]interface{}{msg}, args...)...)
-}
-
-// InEpsilonf asserts that expected and actual have a relative error less than epsilon
-func InEpsilonf(t TestingT, expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return InEpsilon(t, expected, actual, epsilon, append([]interface{}{msg}, args...)...)
-}
-
-// InEpsilonSlicef is the same as InEpsilon, except it compares each value from two slices.
-func InEpsilonSlicef(t TestingT, expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return InEpsilonSlice(t, expected, actual, epsilon, append([]interface{}{msg}, args...)...)
-}
-
-// IsTypef asserts that the specified objects are of the same type.
-func IsTypef(t TestingT, expectedType interface{}, object interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return IsType(t, expectedType, object, append([]interface{}{msg}, args...)...)
-}
-
-// JSONEqf asserts that two JSON strings are equivalent.
-//
-//  assert.JSONEqf(t, `{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`, "error message %s", "formatted")
-func JSONEqf(t TestingT, expected string, actual string, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return JSONEq(t, expected, actual, append([]interface{}{msg}, args...)...)
-}
-
-// Lenf asserts that the specified object has specific length.
-// Lenf also fails if the object has a type that len() not accept.
-//
-//    assert.Lenf(t, mySlice, 3, "error message %s", "formatted")
-func Lenf(t TestingT, object interface{}, length int, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return Len(t, object, length, append([]interface{}{msg}, args...)...)
-}
-
-// Nilf asserts that the specified object is nil.
-//
-//    assert.Nilf(t, err, "error message %s", "formatted")
-func Nilf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return Nil(t, object, append([]interface{}{msg}, args...)...)
-}
-
-// NoErrorf asserts that a function returned no error (i.e. `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if assert.NoErrorf(t, err, "error message %s", "formatted") {
-// 	   assert.Equal(t, expectedObj, actualObj)
-//   }
-func NoErrorf(t TestingT, err error, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return NoError(t, err, append([]interface{}{msg}, args...)...)
-}
-
-// NotContainsf asserts that the specified string, list(array, slice...) or map does NOT contain the
-// specified substring or element.
-//
-//    assert.NotContainsf(t, "Hello World", "Earth", "error message %s", "formatted")
-//    assert.NotContainsf(t, ["Hello", "World"], "Earth", "error message %s", "formatted")
-//    assert.NotContainsf(t, {"Hello": "World"}, "Earth", "error message %s", "formatted")
-func NotContainsf(t TestingT, s interface{}, contains interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotContains(t, s, contains, append([]interface{}{msg}, args...)...)
-}
-
-// NotEmptyf asserts that the specified object is NOT empty.  I.e. not nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  if assert.NotEmptyf(t, obj, "error message %s", "formatted") {
-//    assert.Equal(t, "two", obj[1])
-//  }
-func NotEmptyf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotEmpty(t, object, append([]interface{}{msg}, args...)...)
-}
-
-// NotEqualf asserts that the specified values are NOT equal.
-//
-//    assert.NotEqualf(t, obj1, obj2, "error message %s", "formatted")
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses).
-func NotEqualf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotEqual(t, expected, actual, append([]interface{}{msg}, args...)...)
-}
-
-// NotNilf asserts that the specified object is not nil.
-//
-//    assert.NotNilf(t, err, "error message %s", "formatted")
-func NotNilf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotNil(t, object, append([]interface{}{msg}, args...)...)
-}
-
-// NotPanicsf asserts that the code inside the specified PanicTestFunc does NOT panic.
-//
-//   assert.NotPanicsf(t, func(){ RemainCalm() }, "error message %s", "formatted")
-func NotPanicsf(t TestingT, f PanicTestFunc, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotPanics(t, f, append([]interface{}{msg}, args...)...)
-}
-
-// NotRegexpf asserts that a specified regexp does not match a string.
-//
-//  assert.NotRegexpf(t, regexp.MustCompile("starts", "error message %s", "formatted"), "it's starting")
-//  assert.NotRegexpf(t, "^start", "it's not starting", "error message %s", "formatted")
-func NotRegexpf(t TestingT, rx interface{}, str interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotRegexp(t, rx, str, append([]interface{}{msg}, args...)...)
-}
-
-// NotSubsetf asserts that the specified list(array, slice...) contains not all
-// elements given in the specified subset(array, slice...).
-//
-//    assert.NotSubsetf(t, [1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]", "error message %s", "formatted")
-func NotSubsetf(t TestingT, list interface{}, subset interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotSubset(t, list, subset, append([]interface{}{msg}, args...)...)
-}
-
-// NotZerof asserts that i is not the zero value for its type.
-func NotZerof(t TestingT, i interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotZero(t, i, append([]interface{}{msg}, args...)...)
-}
-
-// Panicsf asserts that the code inside the specified PanicTestFunc panics.
-//
-//   assert.Panicsf(t, func(){ GoCrazy() }, "error message %s", "formatted")
-func Panicsf(t TestingT, f PanicTestFunc, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return Panics(t, f, append([]interface{}{msg}, args...)...)
-}
-
-// PanicsWithValuef asserts that the code inside the specified PanicTestFunc panics, and that
-// the recovered panic value equals the expected panic value.
-//
-//   assert.PanicsWithValuef(t, "crazy error", func(){ GoCrazy() }, "error message %s", "formatted")
-func PanicsWithValuef(t TestingT, expected interface{}, f PanicTestFunc, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return PanicsWithValue(t, expected, f, append([]interface{}{msg}, args...)...)
-}
-
-// Regexpf asserts that a specified regexp matches a string.
-//
-//  assert.Regexpf(t, regexp.MustCompile("start", "error message %s", "formatted"), "it's starting")
-//  assert.Regexpf(t, "start...$", "it's not starting", "error message %s", "formatted")
-func Regexpf(t TestingT, rx interface{}, str interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return Regexp(t, rx, str, append([]interface{}{msg}, args...)...)
-}
-
-// Subsetf asserts that the specified list(array, slice...) contains all
-// elements given in the specified subset(array, slice...).
-//
-//    assert.Subsetf(t, [1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]", "error message %s", "formatted")
-func Subsetf(t TestingT, list interface{}, subset interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return Subset(t, list, subset, append([]interface{}{msg}, args...)...)
-}
-
-// Truef asserts that the specified value is true.
-//
-//    assert.Truef(t, myBool, "error message %s", "formatted")
-func Truef(t TestingT, value bool, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return True(t, value, append([]interface{}{msg}, args...)...)
-}
-
-// WithinDurationf asserts that the two times are within duration delta of each other.
-//
-//   assert.WithinDurationf(t, time.Now(), time.Now(), 10*time.Second, "error message %s", "formatted")
-func WithinDurationf(t TestingT, expected time.Time, actual time.Time, delta time.Duration, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return WithinDuration(t, expected, actual, delta, append([]interface{}{msg}, args...)...)
-}
-
-// Zerof asserts that i is the zero value for its type.
-func Zerof(t TestingT, i interface{}, msg string, args ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	return Zero(t, i, append([]interface{}{msg}, args...)...)
-}

libnetwork/vendor/github.com/stretchr/testify/assert/assertion_forward.go

@@ -1,956 +0,0 @@
-/*
-* CODE GENERATED AUTOMATICALLY WITH github.com/stretchr/testify/_codegen
-* THIS FILE MUST NOT BE EDITED BY HAND
- */
-
-package assert
-
-import (
-	http "net/http"
-	url "net/url"
-	time "time"
-)
-
-// Condition uses a Comparison to assert a complex condition.
-func (a *Assertions) Condition(comp Comparison, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Condition(a.t, comp, msgAndArgs...)
-}
-
-// Conditionf uses a Comparison to assert a complex condition.
-func (a *Assertions) Conditionf(comp Comparison, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Conditionf(a.t, comp, msg, args...)
-}
-
-// Contains asserts that the specified string, list(array, slice...) or map contains the
-// specified substring or element.
-//
-//    a.Contains("Hello World", "World")
-//    a.Contains(["Hello", "World"], "World")
-//    a.Contains({"Hello": "World"}, "Hello")
-func (a *Assertions) Contains(s interface{}, contains interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Contains(a.t, s, contains, msgAndArgs...)
-}
-
-// Containsf asserts that the specified string, list(array, slice...) or map contains the
-// specified substring or element.
-//
-//    a.Containsf("Hello World", "World", "error message %s", "formatted")
-//    a.Containsf(["Hello", "World"], "World", "error message %s", "formatted")
-//    a.Containsf({"Hello": "World"}, "Hello", "error message %s", "formatted")
-func (a *Assertions) Containsf(s interface{}, contains interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Containsf(a.t, s, contains, msg, args...)
-}
-
-// DirExists checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
-func (a *Assertions) DirExists(path string, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return DirExists(a.t, path, msgAndArgs...)
-}
-
-// DirExistsf checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
-func (a *Assertions) DirExistsf(path string, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return DirExistsf(a.t, path, msg, args...)
-}
-
-// ElementsMatch asserts that the specified listA(array, slice...) is equal to specified
-// listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
-// the number of appearances of each of them in both lists should match.
-//
-// a.ElementsMatch([1, 3, 2, 3], [1, 3, 3, 2])
-func (a *Assertions) ElementsMatch(listA interface{}, listB interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return ElementsMatch(a.t, listA, listB, msgAndArgs...)
-}
-
-// ElementsMatchf asserts that the specified listA(array, slice...) is equal to specified
-// listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
-// the number of appearances of each of them in both lists should match.
-//
-// a.ElementsMatchf([1, 3, 2, 3], [1, 3, 3, 2], "error message %s", "formatted")
-func (a *Assertions) ElementsMatchf(listA interface{}, listB interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return ElementsMatchf(a.t, listA, listB, msg, args...)
-}
-
-// Empty asserts that the specified object is empty.  I.e. nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  a.Empty(obj)
-func (a *Assertions) Empty(object interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Empty(a.t, object, msgAndArgs...)
-}
-
-// Emptyf asserts that the specified object is empty.  I.e. nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  a.Emptyf(obj, "error message %s", "formatted")
-func (a *Assertions) Emptyf(object interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Emptyf(a.t, object, msg, args...)
-}
-
-// Equal asserts that two objects are equal.
-//
-//    a.Equal(123, 123)
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses). Function equality
-// cannot be determined and will always fail.
-func (a *Assertions) Equal(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Equal(a.t, expected, actual, msgAndArgs...)
-}
-
-// EqualError asserts that a function returned an error (i.e. not `nil`)
-// and that it is equal to the provided error.
-//
-//   actualObj, err := SomeFunction()
-//   a.EqualError(err,  expectedErrorString)
-func (a *Assertions) EqualError(theError error, errString string, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return EqualError(a.t, theError, errString, msgAndArgs...)
-}
-
-// EqualErrorf asserts that a function returned an error (i.e. not `nil`)
-// and that it is equal to the provided error.
-//
-//   actualObj, err := SomeFunction()
-//   a.EqualErrorf(err,  expectedErrorString, "error message %s", "formatted")
-func (a *Assertions) EqualErrorf(theError error, errString string, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return EqualErrorf(a.t, theError, errString, msg, args...)
-}
-
-// EqualValues asserts that two objects are equal or convertable to the same types
-// and equal.
-//
-//    a.EqualValues(uint32(123), int32(123))
-func (a *Assertions) EqualValues(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return EqualValues(a.t, expected, actual, msgAndArgs...)
-}
-
-// EqualValuesf asserts that two objects are equal or convertable to the same types
-// and equal.
-//
-//    a.EqualValuesf(uint32(123, "error message %s", "formatted"), int32(123))
-func (a *Assertions) EqualValuesf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return EqualValuesf(a.t, expected, actual, msg, args...)
-}
-
-// Equalf asserts that two objects are equal.
-//
-//    a.Equalf(123, 123, "error message %s", "formatted")
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses). Function equality
-// cannot be determined and will always fail.
-func (a *Assertions) Equalf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Equalf(a.t, expected, actual, msg, args...)
-}
-
-// Error asserts that a function returned an error (i.e. not `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if a.Error(err) {
-// 	   assert.Equal(t, expectedError, err)
-//   }
-func (a *Assertions) Error(err error, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Error(a.t, err, msgAndArgs...)
-}
-
-// Errorf asserts that a function returned an error (i.e. not `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if a.Errorf(err, "error message %s", "formatted") {
-// 	   assert.Equal(t, expectedErrorf, err)
-//   }
-func (a *Assertions) Errorf(err error, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Errorf(a.t, err, msg, args...)
-}
-
-// Exactly asserts that two objects are equal in value and type.
-//
-//    a.Exactly(int32(123), int64(123))
-func (a *Assertions) Exactly(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Exactly(a.t, expected, actual, msgAndArgs...)
-}
-
-// Exactlyf asserts that two objects are equal in value and type.
-//
-//    a.Exactlyf(int32(123, "error message %s", "formatted"), int64(123))
-func (a *Assertions) Exactlyf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Exactlyf(a.t, expected, actual, msg, args...)
-}
-
-// Fail reports a failure through
-func (a *Assertions) Fail(failureMessage string, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Fail(a.t, failureMessage, msgAndArgs...)
-}
-
-// FailNow fails test
-func (a *Assertions) FailNow(failureMessage string, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return FailNow(a.t, failureMessage, msgAndArgs...)
-}
-
-// FailNowf fails test
-func (a *Assertions) FailNowf(failureMessage string, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return FailNowf(a.t, failureMessage, msg, args...)
-}
-
-// Failf reports a failure through
-func (a *Assertions) Failf(failureMessage string, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Failf(a.t, failureMessage, msg, args...)
-}
-
-// False asserts that the specified value is false.
-//
-//    a.False(myBool)
-func (a *Assertions) False(value bool, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return False(a.t, value, msgAndArgs...)
-}
-
-// Falsef asserts that the specified value is false.
-//
-//    a.Falsef(myBool, "error message %s", "formatted")
-func (a *Assertions) Falsef(value bool, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Falsef(a.t, value, msg, args...)
-}
-
-// FileExists checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
-func (a *Assertions) FileExists(path string, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return FileExists(a.t, path, msgAndArgs...)
-}
-
-// FileExistsf checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
-func (a *Assertions) FileExistsf(path string, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return FileExistsf(a.t, path, msg, args...)
-}
-
-// HTTPBodyContains asserts that a specified handler returns a
-// body that contains a string.
-//
-//  a.HTTPBodyContains(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPBodyContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return HTTPBodyContains(a.t, handler, method, url, values, str, msgAndArgs...)
-}
-
-// HTTPBodyContainsf asserts that a specified handler returns a
-// body that contains a string.
-//
-//  a.HTTPBodyContainsf(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPBodyContainsf(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return HTTPBodyContainsf(a.t, handler, method, url, values, str, msg, args...)
-}
-
-// HTTPBodyNotContains asserts that a specified handler returns a
-// body that does not contain a string.
-//
-//  a.HTTPBodyNotContains(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPBodyNotContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return HTTPBodyNotContains(a.t, handler, method, url, values, str, msgAndArgs...)
-}
-
-// HTTPBodyNotContainsf asserts that a specified handler returns a
-// body that does not contain a string.
-//
-//  a.HTTPBodyNotContainsf(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPBodyNotContainsf(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return HTTPBodyNotContainsf(a.t, handler, method, url, values, str, msg, args...)
-}
-
-// HTTPError asserts that a specified handler returns an error status code.
-//
-//  a.HTTPError(myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPError(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return HTTPError(a.t, handler, method, url, values, msgAndArgs...)
-}
-
-// HTTPErrorf asserts that a specified handler returns an error status code.
-//
-//  a.HTTPErrorf(myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
-func (a *Assertions) HTTPErrorf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return HTTPErrorf(a.t, handler, method, url, values, msg, args...)
-}
-
-// HTTPRedirect asserts that a specified handler returns a redirect status code.
-//
-//  a.HTTPRedirect(myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPRedirect(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return HTTPRedirect(a.t, handler, method, url, values, msgAndArgs...)
-}
-
-// HTTPRedirectf asserts that a specified handler returns a redirect status code.
-//
-//  a.HTTPRedirectf(myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
-func (a *Assertions) HTTPRedirectf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return HTTPRedirectf(a.t, handler, method, url, values, msg, args...)
-}
-
-// HTTPSuccess asserts that a specified handler returns a success status code.
-//
-//  a.HTTPSuccess(myHandler, "POST", "http://www.google.com", nil)
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPSuccess(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return HTTPSuccess(a.t, handler, method, url, values, msgAndArgs...)
-}
-
-// HTTPSuccessf asserts that a specified handler returns a success status code.
-//
-//  a.HTTPSuccessf(myHandler, "POST", "http://www.google.com", nil, "error message %s", "formatted")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPSuccessf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return HTTPSuccessf(a.t, handler, method, url, values, msg, args...)
-}
-
-// Implements asserts that an object is implemented by the specified interface.
-//
-//    a.Implements((*MyInterface)(nil), new(MyObject))
-func (a *Assertions) Implements(interfaceObject interface{}, object interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Implements(a.t, interfaceObject, object, msgAndArgs...)
-}
-
-// Implementsf asserts that an object is implemented by the specified interface.
-//
-//    a.Implementsf((*MyInterface, "error message %s", "formatted")(nil), new(MyObject))
-func (a *Assertions) Implementsf(interfaceObject interface{}, object interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Implementsf(a.t, interfaceObject, object, msg, args...)
-}
-
-// InDelta asserts that the two numerals are within delta of each other.
-//
-// 	 a.InDelta(math.Pi, (22 / 7.0), 0.01)
-func (a *Assertions) InDelta(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return InDelta(a.t, expected, actual, delta, msgAndArgs...)
-}
-
-// InDeltaMapValues is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
-func (a *Assertions) InDeltaMapValues(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return InDeltaMapValues(a.t, expected, actual, delta, msgAndArgs...)
-}
-
-// InDeltaMapValuesf is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
-func (a *Assertions) InDeltaMapValuesf(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return InDeltaMapValuesf(a.t, expected, actual, delta, msg, args...)
-}
-
-// InDeltaSlice is the same as InDelta, except it compares two slices.
-func (a *Assertions) InDeltaSlice(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return InDeltaSlice(a.t, expected, actual, delta, msgAndArgs...)
-}
-
-// InDeltaSlicef is the same as InDelta, except it compares two slices.
-func (a *Assertions) InDeltaSlicef(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return InDeltaSlicef(a.t, expected, actual, delta, msg, args...)
-}
-
-// InDeltaf asserts that the two numerals are within delta of each other.
-//
-// 	 a.InDeltaf(math.Pi, (22 / 7.0, "error message %s", "formatted"), 0.01)
-func (a *Assertions) InDeltaf(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return InDeltaf(a.t, expected, actual, delta, msg, args...)
-}
-
-// InEpsilon asserts that expected and actual have a relative error less than epsilon
-func (a *Assertions) InEpsilon(expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return InEpsilon(a.t, expected, actual, epsilon, msgAndArgs...)
-}
-
-// InEpsilonSlice is the same as InEpsilon, except it compares each value from two slices.
-func (a *Assertions) InEpsilonSlice(expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return InEpsilonSlice(a.t, expected, actual, epsilon, msgAndArgs...)
-}
-
-// InEpsilonSlicef is the same as InEpsilon, except it compares each value from two slices.
-func (a *Assertions) InEpsilonSlicef(expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return InEpsilonSlicef(a.t, expected, actual, epsilon, msg, args...)
-}
-
-// InEpsilonf asserts that expected and actual have a relative error less than epsilon
-func (a *Assertions) InEpsilonf(expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return InEpsilonf(a.t, expected, actual, epsilon, msg, args...)
-}
-
-// IsType asserts that the specified objects are of the same type.
-func (a *Assertions) IsType(expectedType interface{}, object interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return IsType(a.t, expectedType, object, msgAndArgs...)
-}
-
-// IsTypef asserts that the specified objects are of the same type.
-func (a *Assertions) IsTypef(expectedType interface{}, object interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return IsTypef(a.t, expectedType, object, msg, args...)
-}
-
-// JSONEq asserts that two JSON strings are equivalent.
-//
-//  a.JSONEq(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`)
-func (a *Assertions) JSONEq(expected string, actual string, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return JSONEq(a.t, expected, actual, msgAndArgs...)
-}
-
-// JSONEqf asserts that two JSON strings are equivalent.
-//
-//  a.JSONEqf(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`, "error message %s", "formatted")
-func (a *Assertions) JSONEqf(expected string, actual string, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return JSONEqf(a.t, expected, actual, msg, args...)
-}
-
-// Len asserts that the specified object has specific length.
-// Len also fails if the object has a type that len() not accept.
-//
-//    a.Len(mySlice, 3)
-func (a *Assertions) Len(object interface{}, length int, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Len(a.t, object, length, msgAndArgs...)
-}
-
-// Lenf asserts that the specified object has specific length.
-// Lenf also fails if the object has a type that len() not accept.
-//
-//    a.Lenf(mySlice, 3, "error message %s", "formatted")
-func (a *Assertions) Lenf(object interface{}, length int, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Lenf(a.t, object, length, msg, args...)
-}
-
-// Nil asserts that the specified object is nil.
-//
-//    a.Nil(err)
-func (a *Assertions) Nil(object interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Nil(a.t, object, msgAndArgs...)
-}
-
-// Nilf asserts that the specified object is nil.
-//
-//    a.Nilf(err, "error message %s", "formatted")
-func (a *Assertions) Nilf(object interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Nilf(a.t, object, msg, args...)
-}
-
-// NoError asserts that a function returned no error (i.e. `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if a.NoError(err) {
-// 	   assert.Equal(t, expectedObj, actualObj)
-//   }
-func (a *Assertions) NoError(err error, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NoError(a.t, err, msgAndArgs...)
-}
-
-// NoErrorf asserts that a function returned no error (i.e. `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if a.NoErrorf(err, "error message %s", "formatted") {
-// 	   assert.Equal(t, expectedObj, actualObj)
-//   }
-func (a *Assertions) NoErrorf(err error, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NoErrorf(a.t, err, msg, args...)
-}
-
-// NotContains asserts that the specified string, list(array, slice...) or map does NOT contain the
-// specified substring or element.
-//
-//    a.NotContains("Hello World", "Earth")
-//    a.NotContains(["Hello", "World"], "Earth")
-//    a.NotContains({"Hello": "World"}, "Earth")
-func (a *Assertions) NotContains(s interface{}, contains interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotContains(a.t, s, contains, msgAndArgs...)
-}
-
-// NotContainsf asserts that the specified string, list(array, slice...) or map does NOT contain the
-// specified substring or element.
-//
-//    a.NotContainsf("Hello World", "Earth", "error message %s", "formatted")
-//    a.NotContainsf(["Hello", "World"], "Earth", "error message %s", "formatted")
-//    a.NotContainsf({"Hello": "World"}, "Earth", "error message %s", "formatted")
-func (a *Assertions) NotContainsf(s interface{}, contains interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotContainsf(a.t, s, contains, msg, args...)
-}
-
-// NotEmpty asserts that the specified object is NOT empty.  I.e. not nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  if a.NotEmpty(obj) {
-//    assert.Equal(t, "two", obj[1])
-//  }
-func (a *Assertions) NotEmpty(object interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotEmpty(a.t, object, msgAndArgs...)
-}
-
-// NotEmptyf asserts that the specified object is NOT empty.  I.e. not nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  if a.NotEmptyf(obj, "error message %s", "formatted") {
-//    assert.Equal(t, "two", obj[1])
-//  }
-func (a *Assertions) NotEmptyf(object interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotEmptyf(a.t, object, msg, args...)
-}
-
-// NotEqual asserts that the specified values are NOT equal.
-//
-//    a.NotEqual(obj1, obj2)
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses).
-func (a *Assertions) NotEqual(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotEqual(a.t, expected, actual, msgAndArgs...)
-}
-
-// NotEqualf asserts that the specified values are NOT equal.
-//
-//    a.NotEqualf(obj1, obj2, "error message %s", "formatted")
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses).
-func (a *Assertions) NotEqualf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotEqualf(a.t, expected, actual, msg, args...)
-}
-
-// NotNil asserts that the specified object is not nil.
-//
-//    a.NotNil(err)
-func (a *Assertions) NotNil(object interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotNil(a.t, object, msgAndArgs...)
-}
-
-// NotNilf asserts that the specified object is not nil.
-//
-//    a.NotNilf(err, "error message %s", "formatted")
-func (a *Assertions) NotNilf(object interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotNilf(a.t, object, msg, args...)
-}
-
-// NotPanics asserts that the code inside the specified PanicTestFunc does NOT panic.
-//
-//   a.NotPanics(func(){ RemainCalm() })
-func (a *Assertions) NotPanics(f PanicTestFunc, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotPanics(a.t, f, msgAndArgs...)
-}
-
-// NotPanicsf asserts that the code inside the specified PanicTestFunc does NOT panic.
-//
-//   a.NotPanicsf(func(){ RemainCalm() }, "error message %s", "formatted")
-func (a *Assertions) NotPanicsf(f PanicTestFunc, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotPanicsf(a.t, f, msg, args...)
-}
-
-// NotRegexp asserts that a specified regexp does not match a string.
-//
-//  a.NotRegexp(regexp.MustCompile("starts"), "it's starting")
-//  a.NotRegexp("^start", "it's not starting")
-func (a *Assertions) NotRegexp(rx interface{}, str interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotRegexp(a.t, rx, str, msgAndArgs...)
-}
-
-// NotRegexpf asserts that a specified regexp does not match a string.
-//
-//  a.NotRegexpf(regexp.MustCompile("starts", "error message %s", "formatted"), "it's starting")
-//  a.NotRegexpf("^start", "it's not starting", "error message %s", "formatted")
-func (a *Assertions) NotRegexpf(rx interface{}, str interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotRegexpf(a.t, rx, str, msg, args...)
-}
-
-// NotSubset asserts that the specified list(array, slice...) contains not all
-// elements given in the specified subset(array, slice...).
-//
-//    a.NotSubset([1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]")
-func (a *Assertions) NotSubset(list interface{}, subset interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotSubset(a.t, list, subset, msgAndArgs...)
-}
-
-// NotSubsetf asserts that the specified list(array, slice...) contains not all
-// elements given in the specified subset(array, slice...).
-//
-//    a.NotSubsetf([1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]", "error message %s", "formatted")
-func (a *Assertions) NotSubsetf(list interface{}, subset interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotSubsetf(a.t, list, subset, msg, args...)
-}
-
-// NotZero asserts that i is not the zero value for its type.
-func (a *Assertions) NotZero(i interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotZero(a.t, i, msgAndArgs...)
-}
-
-// NotZerof asserts that i is not the zero value for its type.
-func (a *Assertions) NotZerof(i interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return NotZerof(a.t, i, msg, args...)
-}
-
-// Panics asserts that the code inside the specified PanicTestFunc panics.
-//
-//   a.Panics(func(){ GoCrazy() })
-func (a *Assertions) Panics(f PanicTestFunc, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Panics(a.t, f, msgAndArgs...)
-}
-
-// PanicsWithValue asserts that the code inside the specified PanicTestFunc panics, and that
-// the recovered panic value equals the expected panic value.
-//
-//   a.PanicsWithValue("crazy error", func(){ GoCrazy() })
-func (a *Assertions) PanicsWithValue(expected interface{}, f PanicTestFunc, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return PanicsWithValue(a.t, expected, f, msgAndArgs...)
-}
-
-// PanicsWithValuef asserts that the code inside the specified PanicTestFunc panics, and that
-// the recovered panic value equals the expected panic value.
-//
-//   a.PanicsWithValuef("crazy error", func(){ GoCrazy() }, "error message %s", "formatted")
-func (a *Assertions) PanicsWithValuef(expected interface{}, f PanicTestFunc, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return PanicsWithValuef(a.t, expected, f, msg, args...)
-}
-
-// Panicsf asserts that the code inside the specified PanicTestFunc panics.
-//
-//   a.Panicsf(func(){ GoCrazy() }, "error message %s", "formatted")
-func (a *Assertions) Panicsf(f PanicTestFunc, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Panicsf(a.t, f, msg, args...)
-}
-
-// Regexp asserts that a specified regexp matches a string.
-//
-//  a.Regexp(regexp.MustCompile("start"), "it's starting")
-//  a.Regexp("start...$", "it's not starting")
-func (a *Assertions) Regexp(rx interface{}, str interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Regexp(a.t, rx, str, msgAndArgs...)
-}
-
-// Regexpf asserts that a specified regexp matches a string.
-//
-//  a.Regexpf(regexp.MustCompile("start", "error message %s", "formatted"), "it's starting")
-//  a.Regexpf("start...$", "it's not starting", "error message %s", "formatted")
-func (a *Assertions) Regexpf(rx interface{}, str interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Regexpf(a.t, rx, str, msg, args...)
-}
-
-// Subset asserts that the specified list(array, slice...) contains all
-// elements given in the specified subset(array, slice...).
-//
-//    a.Subset([1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]")
-func (a *Assertions) Subset(list interface{}, subset interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Subset(a.t, list, subset, msgAndArgs...)
-}
-
-// Subsetf asserts that the specified list(array, slice...) contains all
-// elements given in the specified subset(array, slice...).
-//
-//    a.Subsetf([1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]", "error message %s", "formatted")
-func (a *Assertions) Subsetf(list interface{}, subset interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Subsetf(a.t, list, subset, msg, args...)
-}
-
-// True asserts that the specified value is true.
-//
-//    a.True(myBool)
-func (a *Assertions) True(value bool, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return True(a.t, value, msgAndArgs...)
-}
-
-// Truef asserts that the specified value is true.
-//
-//    a.Truef(myBool, "error message %s", "formatted")
-func (a *Assertions) Truef(value bool, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Truef(a.t, value, msg, args...)
-}
-
-// WithinDuration asserts that the two times are within duration delta of each other.
-//
-//   a.WithinDuration(time.Now(), time.Now(), 10*time.Second)
-func (a *Assertions) WithinDuration(expected time.Time, actual time.Time, delta time.Duration, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return WithinDuration(a.t, expected, actual, delta, msgAndArgs...)
-}
-
-// WithinDurationf asserts that the two times are within duration delta of each other.
-//
-//   a.WithinDurationf(time.Now(), time.Now(), 10*time.Second, "error message %s", "formatted")
-func (a *Assertions) WithinDurationf(expected time.Time, actual time.Time, delta time.Duration, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return WithinDurationf(a.t, expected, actual, delta, msg, args...)
-}
-
-// Zero asserts that i is the zero value for its type.
-func (a *Assertions) Zero(i interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Zero(a.t, i, msgAndArgs...)
-}
-
-// Zerof asserts that i is the zero value for its type.
-func (a *Assertions) Zerof(i interface{}, msg string, args ...interface{}) bool {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	return Zerof(a.t, i, msg, args...)
-}

libnetwork/vendor/github.com/stretchr/testify/assert/assertions.go

@@ -1,1394 +0,0 @@
-package assert
-
-import (
-	"bufio"
-	"bytes"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"math"
-	"os"
-	"reflect"
-	"regexp"
-	"runtime"
-	"strings"
-	"time"
-	"unicode"
-	"unicode/utf8"
-
-	"github.com/davecgh/go-spew/spew"
-	"github.com/pmezard/go-difflib/difflib"
-)
-
-//go:generate go run ../_codegen/main.go -output-package=assert -template=assertion_format.go.tmpl
-
-// TestingT is an interface wrapper around *testing.T
-type TestingT interface {
-	Errorf(format string, args ...interface{})
-}
-
-// ComparisonAssertionFunc is a common function prototype when comparing two values.  Can be useful
-// for table driven tests.
-type ComparisonAssertionFunc func(TestingT, interface{}, interface{}, ...interface{}) bool
-
-// ValueAssertionFunc is a common function prototype when validating a single value.  Can be useful
-// for table driven tests.
-type ValueAssertionFunc func(TestingT, interface{}, ...interface{}) bool
-
-// BoolAssertionFunc is a common function prototype when validating a bool value.  Can be useful
-// for table driven tests.
-type BoolAssertionFunc func(TestingT, bool, ...interface{}) bool
-
-// ValuesAssertionFunc is a common function prototype when validating an error value.  Can be useful
-// for table driven tests.
-type ErrorAssertionFunc func(TestingT, error, ...interface{}) bool
-
-// Comparison a custom function that returns true on success and false on failure
-type Comparison func() (success bool)
-
-/*
-	Helper functions
-*/
-
-// ObjectsAreEqual determines if two objects are considered equal.
-//
-// This function does no assertion of any kind.
-func ObjectsAreEqual(expected, actual interface{}) bool {
-	if expected == nil || actual == nil {
-		return expected == actual
-	}
-
-	exp, ok := expected.([]byte)
-	if !ok {
-		return reflect.DeepEqual(expected, actual)
-	}
-
-	act, ok := actual.([]byte)
-	if !ok {
-		return false
-	}
-	if exp == nil || act == nil {
-		return exp == nil && act == nil
-	}
-	return bytes.Equal(exp, act)
-}
-
-// ObjectsAreEqualValues gets whether two objects are equal, or if their
-// values are equal.
-func ObjectsAreEqualValues(expected, actual interface{}) bool {
-	if ObjectsAreEqual(expected, actual) {
-		return true
-	}
-
-	actualType := reflect.TypeOf(actual)
-	if actualType == nil {
-		return false
-	}
-	expectedValue := reflect.ValueOf(expected)
-	if expectedValue.IsValid() && expectedValue.Type().ConvertibleTo(actualType) {
-		// Attempt comparison after type conversion
-		return reflect.DeepEqual(expectedValue.Convert(actualType).Interface(), actual)
-	}
-
-	return false
-}
-
-/* CallerInfo is necessary because the assert functions use the testing object
-internally, causing it to print the file:line of the assert method, rather than where
-the problem actually occurred in calling code.*/
-
-// CallerInfo returns an array of strings containing the file and line number
-// of each stack frame leading from the current test to the assert call that
-// failed.
-func CallerInfo() []string {
-
-	pc := uintptr(0)
-	file := ""
-	line := 0
-	ok := false
-	name := ""
-
-	callers := []string{}
-	for i := 0; ; i++ {
-		pc, file, line, ok = runtime.Caller(i)
-		if !ok {
-			// The breaks below failed to terminate the loop, and we ran off the
-			// end of the call stack.
-			break
-		}
-
-		// This is a huge edge case, but it will panic if this is the case, see #180
-		if file == "<autogenerated>" {
-			break
-		}
-
-		f := runtime.FuncForPC(pc)
-		if f == nil {
-			break
-		}
-		name = f.Name()
-
-		// testing.tRunner is the standard library function that calls
-		// tests. Subtests are called directly by tRunner, without going through
-		// the Test/Benchmark/Example function that contains the t.Run calls, so
-		// with subtests we should break when we hit tRunner, without adding it
-		// to the list of callers.
-		if name == "testing.tRunner" {
-			break
-		}
-
-		parts := strings.Split(file, "/")
-		file = parts[len(parts)-1]
-		if len(parts) > 1 {
-			dir := parts[len(parts)-2]
-			if (dir != "assert" && dir != "mock" && dir != "require") || file == "mock_test.go" {
-				callers = append(callers, fmt.Sprintf("%s:%d", file, line))
-			}
-		}
-
-		// Drop the package
-		segments := strings.Split(name, ".")
-		name = segments[len(segments)-1]
-		if isTest(name, "Test") ||
-			isTest(name, "Benchmark") ||
-			isTest(name, "Example") {
-			break
-		}
-	}
-
-	return callers
-}
-
-// Stolen from the `go test` tool.
-// isTest tells whether name looks like a test (or benchmark, according to prefix).
-// It is a Test (say) if there is a character after Test that is not a lower-case letter.
-// We don't want TesticularCancer.
-func isTest(name, prefix string) bool {
-	if !strings.HasPrefix(name, prefix) {
-		return false
-	}
-	if len(name) == len(prefix) { // "Test" is ok
-		return true
-	}
-	rune, _ := utf8.DecodeRuneInString(name[len(prefix):])
-	return !unicode.IsLower(rune)
-}
-
-func messageFromMsgAndArgs(msgAndArgs ...interface{}) string {
-	if len(msgAndArgs) == 0 || msgAndArgs == nil {
-		return ""
-	}
-	if len(msgAndArgs) == 1 {
-		return msgAndArgs[0].(string)
-	}
-	if len(msgAndArgs) > 1 {
-		return fmt.Sprintf(msgAndArgs[0].(string), msgAndArgs[1:]...)
-	}
-	return ""
-}
-
-// Aligns the provided message so that all lines after the first line start at the same location as the first line.
-// Assumes that the first line starts at the correct location (after carriage return, tab, label, spacer and tab).
-// The longestLabelLen parameter specifies the length of the longest label in the output (required becaues this is the
-// basis on which the alignment occurs).
-func indentMessageLines(message string, longestLabelLen int) string {
-	outBuf := new(bytes.Buffer)
-
-	for i, scanner := 0, bufio.NewScanner(strings.NewReader(message)); scanner.Scan(); i++ {
-		// no need to align first line because it starts at the correct location (after the label)
-		if i != 0 {
-			// append alignLen+1 spaces to align with "{{longestLabel}}:" before adding tab
-			outBuf.WriteString("\n\t" + strings.Repeat(" ", longestLabelLen+1) + "\t")
-		}
-		outBuf.WriteString(scanner.Text())
-	}
-
-	return outBuf.String()
-}
-
-type failNower interface {
-	FailNow()
-}
-
-// FailNow fails test
-func FailNow(t TestingT, failureMessage string, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	Fail(t, failureMessage, msgAndArgs...)
-
-	// We cannot extend TestingT with FailNow() and
-	// maintain backwards compatibility, so we fallback
-	// to panicking when FailNow is not available in
-	// TestingT.
-	// See issue #263
-
-	if t, ok := t.(failNower); ok {
-		t.FailNow()
-	} else {
-		panic("test failed and t is missing `FailNow()`")
-	}
-	return false
-}
-
-// Fail reports a failure through
-func Fail(t TestingT, failureMessage string, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	content := []labeledContent{
-		{"Error Trace", strings.Join(CallerInfo(), "\n\t\t\t")},
-		{"Error", failureMessage},
-	}
-
-	// Add test name if the Go version supports it
-	if n, ok := t.(interface {
-		Name() string
-	}); ok {
-		content = append(content, labeledContent{"Test", n.Name()})
-	}
-
-	message := messageFromMsgAndArgs(msgAndArgs...)
-	if len(message) > 0 {
-		content = append(content, labeledContent{"Messages", message})
-	}
-
-	t.Errorf("\n%s", ""+labeledOutput(content...))
-
-	return false
-}
-
-type labeledContent struct {
-	label   string
-	content string
-}
-
-// labeledOutput returns a string consisting of the provided labeledContent. Each labeled output is appended in the following manner:
-//
-//   \t{{label}}:{{align_spaces}}\t{{content}}\n
-//
-// The initial carriage return is required to undo/erase any padding added by testing.T.Errorf. The "\t{{label}}:" is for the label.
-// If a label is shorter than the longest label provided, padding spaces are added to make all the labels match in length. Once this
-// alignment is achieved, "\t{{content}}\n" is added for the output.
-//
-// If the content of the labeledOutput contains line breaks, the subsequent lines are aligned so that they start at the same location as the first line.
-func labeledOutput(content ...labeledContent) string {
-	longestLabel := 0
-	for _, v := range content {
-		if len(v.label) > longestLabel {
-			longestLabel = len(v.label)
-		}
-	}
-	var output string
-	for _, v := range content {
-		output += "\t" + v.label + ":" + strings.Repeat(" ", longestLabel-len(v.label)) + "\t" + indentMessageLines(v.content, longestLabel) + "\n"
-	}
-	return output
-}
-
-// Implements asserts that an object is implemented by the specified interface.
-//
-//    assert.Implements(t, (*MyInterface)(nil), new(MyObject))
-func Implements(t TestingT, interfaceObject interface{}, object interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	interfaceType := reflect.TypeOf(interfaceObject).Elem()
-
-	if object == nil {
-		return Fail(t, fmt.Sprintf("Cannot check if nil implements %v", interfaceType), msgAndArgs...)
-	}
-	if !reflect.TypeOf(object).Implements(interfaceType) {
-		return Fail(t, fmt.Sprintf("%T must implement %v", object, interfaceType), msgAndArgs...)
-	}
-
-	return true
-}
-
-// IsType asserts that the specified objects are of the same type.
-func IsType(t TestingT, expectedType interface{}, object interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-
-	if !ObjectsAreEqual(reflect.TypeOf(object), reflect.TypeOf(expectedType)) {
-		return Fail(t, fmt.Sprintf("Object expected to be of type %v, but was %v", reflect.TypeOf(expectedType), reflect.TypeOf(object)), msgAndArgs...)
-	}
-
-	return true
-}
-
-// Equal asserts that two objects are equal.
-//
-//    assert.Equal(t, 123, 123)
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses). Function equality
-// cannot be determined and will always fail.
-func Equal(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	if err := validateEqualArgs(expected, actual); err != nil {
-		return Fail(t, fmt.Sprintf("Invalid operation: %#v == %#v (%s)",
-			expected, actual, err), msgAndArgs...)
-	}
-
-	if !ObjectsAreEqual(expected, actual) {
-		diff := diff(expected, actual)
-		expected, actual = formatUnequalValues(expected, actual)
-		return Fail(t, fmt.Sprintf("Not equal: \n"+
-			"expected: %s\n"+
-			"actual  : %s%s", expected, actual, diff), msgAndArgs...)
-	}
-
-	return true
-
-}
-
-// formatUnequalValues takes two values of arbitrary types and returns string
-// representations appropriate to be presented to the user.
-//
-// If the values are not of like type, the returned strings will be prefixed
-// with the type name, and the value will be enclosed in parenthesis similar
-// to a type conversion in the Go grammar.
-func formatUnequalValues(expected, actual interface{}) (e string, a string) {
-	if reflect.TypeOf(expected) != reflect.TypeOf(actual) {
-		return fmt.Sprintf("%T(%#v)", expected, expected),
-			fmt.Sprintf("%T(%#v)", actual, actual)
-	}
-
-	return fmt.Sprintf("%#v", expected),
-		fmt.Sprintf("%#v", actual)
-}
-
-// EqualValues asserts that two objects are equal or convertable to the same types
-// and equal.
-//
-//    assert.EqualValues(t, uint32(123), int32(123))
-func EqualValues(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-
-	if !ObjectsAreEqualValues(expected, actual) {
-		diff := diff(expected, actual)
-		expected, actual = formatUnequalValues(expected, actual)
-		return Fail(t, fmt.Sprintf("Not equal: \n"+
-			"expected: %s\n"+
-			"actual  : %s%s", expected, actual, diff), msgAndArgs...)
-	}
-
-	return true
-
-}
-
-// Exactly asserts that two objects are equal in value and type.
-//
-//    assert.Exactly(t, int32(123), int64(123))
-func Exactly(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-
-	aType := reflect.TypeOf(expected)
-	bType := reflect.TypeOf(actual)
-
-	if aType != bType {
-		return Fail(t, fmt.Sprintf("Types expected to match exactly\n\t%v != %v", aType, bType), msgAndArgs...)
-	}
-
-	return Equal(t, expected, actual, msgAndArgs...)
-
-}
-
-// NotNil asserts that the specified object is not nil.
-//
-//    assert.NotNil(t, err)
-func NotNil(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	if !isNil(object) {
-		return true
-	}
-	return Fail(t, "Expected value not to be nil.", msgAndArgs...)
-}
-
-// isNil checks if a specified object is nil or not, without Failing.
-func isNil(object interface{}) bool {
-	if object == nil {
-		return true
-	}
-
-	value := reflect.ValueOf(object)
-	kind := value.Kind()
-	if kind >= reflect.Chan && kind <= reflect.Slice && value.IsNil() {
-		return true
-	}
-
-	return false
-}
-
-// Nil asserts that the specified object is nil.
-//
-//    assert.Nil(t, err)
-func Nil(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	if isNil(object) {
-		return true
-	}
-	return Fail(t, fmt.Sprintf("Expected nil, but got: %#v", object), msgAndArgs...)
-}
-
-// isEmpty gets whether the specified object is considered empty or not.
-func isEmpty(object interface{}) bool {
-
-	// get nil case out of the way
-	if object == nil {
-		return true
-	}
-
-	objValue := reflect.ValueOf(object)
-
-	switch objValue.Kind() {
-	// collection types are empty when they have no element
-	case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice:
-		return objValue.Len() == 0
-	// pointers are empty if nil or if the value they point to is empty
-	case reflect.Ptr:
-		if objValue.IsNil() {
-			return true
-		}
-		deref := objValue.Elem().Interface()
-		return isEmpty(deref)
-	// for all other types, compare against the zero value
-	default:
-		zero := reflect.Zero(objValue.Type())
-		return reflect.DeepEqual(object, zero.Interface())
-	}
-}
-
-// Empty asserts that the specified object is empty.  I.e. nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  assert.Empty(t, obj)
-func Empty(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-
-	pass := isEmpty(object)
-	if !pass {
-		Fail(t, fmt.Sprintf("Should be empty, but was %v", object), msgAndArgs...)
-	}
-
-	return pass
-
-}
-
-// NotEmpty asserts that the specified object is NOT empty.  I.e. not nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  if assert.NotEmpty(t, obj) {
-//    assert.Equal(t, "two", obj[1])
-//  }
-func NotEmpty(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-
-	pass := !isEmpty(object)
-	if !pass {
-		Fail(t, fmt.Sprintf("Should NOT be empty, but was %v", object), msgAndArgs...)
-	}
-
-	return pass
-
-}
-
-// getLen try to get length of object.
-// return (false, 0) if impossible.
-func getLen(x interface{}) (ok bool, length int) {
-	v := reflect.ValueOf(x)
-	defer func() {
-		if e := recover(); e != nil {
-			ok = false
-		}
-	}()
-	return true, v.Len()
-}
-
-// Len asserts that the specified object has specific length.
-// Len also fails if the object has a type that len() not accept.
-//
-//    assert.Len(t, mySlice, 3)
-func Len(t TestingT, object interface{}, length int, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	ok, l := getLen(object)
-	if !ok {
-		return Fail(t, fmt.Sprintf("\"%s\" could not be applied builtin len()", object), msgAndArgs...)
-	}
-
-	if l != length {
-		return Fail(t, fmt.Sprintf("\"%s\" should have %d item(s), but has %d", object, length, l), msgAndArgs...)
-	}
-	return true
-}
-
-// True asserts that the specified value is true.
-//
-//    assert.True(t, myBool)
-func True(t TestingT, value bool, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	if h, ok := t.(interface {
-		Helper()
-	}); ok {
-		h.Helper()
-	}
-
-	if value != true {
-		return Fail(t, "Should be true", msgAndArgs...)
-	}
-
-	return true
-
-}
-
-// False asserts that the specified value is false.
-//
-//    assert.False(t, myBool)
-func False(t TestingT, value bool, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-
-	if value != false {
-		return Fail(t, "Should be false", msgAndArgs...)
-	}
-
-	return true
-
-}
-
-// NotEqual asserts that the specified values are NOT equal.
-//
-//    assert.NotEqual(t, obj1, obj2)
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses).
-func NotEqual(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	if err := validateEqualArgs(expected, actual); err != nil {
-		return Fail(t, fmt.Sprintf("Invalid operation: %#v != %#v (%s)",
-			expected, actual, err), msgAndArgs...)
-	}
-
-	if ObjectsAreEqual(expected, actual) {
-		return Fail(t, fmt.Sprintf("Should not be: %#v\n", actual), msgAndArgs...)
-	}
-
-	return true
-
-}
-
-// containsElement try loop over the list check if the list includes the element.
-// return (false, false) if impossible.
-// return (true, false) if element was not found.
-// return (true, true) if element was found.
-func includeElement(list interface{}, element interface{}) (ok, found bool) {
-
-	listValue := reflect.ValueOf(list)
-	elementValue := reflect.ValueOf(element)
-	defer func() {
-		if e := recover(); e != nil {
-			ok = false
-			found = false
-		}
-	}()
-
-	if reflect.TypeOf(list).Kind() == reflect.String {
-		return true, strings.Contains(listValue.String(), elementValue.String())
-	}
-
-	if reflect.TypeOf(list).Kind() == reflect.Map {
-		mapKeys := listValue.MapKeys()
-		for i := 0; i < len(mapKeys); i++ {
-			if ObjectsAreEqual(mapKeys[i].Interface(), element) {
-				return true, true
-			}
-		}
-		return true, false
-	}
-
-	for i := 0; i < listValue.Len(); i++ {
-		if ObjectsAreEqual(listValue.Index(i).Interface(), element) {
-			return true, true
-		}
-	}
-	return true, false
-
-}
-
-// Contains asserts that the specified string, list(array, slice...) or map contains the
-// specified substring or element.
-//
-//    assert.Contains(t, "Hello World", "World")
-//    assert.Contains(t, ["Hello", "World"], "World")
-//    assert.Contains(t, {"Hello": "World"}, "Hello")
-func Contains(t TestingT, s, contains interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-
-	ok, found := includeElement(s, contains)
-	if !ok {
-		return Fail(t, fmt.Sprintf("\"%s\" could not be applied builtin len()", s), msgAndArgs...)
-	}
-	if !found {
-		return Fail(t, fmt.Sprintf("\"%s\" does not contain \"%s\"", s, contains), msgAndArgs...)
-	}
-
-	return true
-
-}
-
-// NotContains asserts that the specified string, list(array, slice...) or map does NOT contain the
-// specified substring or element.
-//
-//    assert.NotContains(t, "Hello World", "Earth")
-//    assert.NotContains(t, ["Hello", "World"], "Earth")
-//    assert.NotContains(t, {"Hello": "World"}, "Earth")
-func NotContains(t TestingT, s, contains interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-
-	ok, found := includeElement(s, contains)
-	if !ok {
-		return Fail(t, fmt.Sprintf("\"%s\" could not be applied builtin len()", s), msgAndArgs...)
-	}
-	if found {
-		return Fail(t, fmt.Sprintf("\"%s\" should not contain \"%s\"", s, contains), msgAndArgs...)
-	}
-
-	return true
-
-}
-
-// Subset asserts that the specified list(array, slice...) contains all
-// elements given in the specified subset(array, slice...).
-//
-//    assert.Subset(t, [1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]")
-func Subset(t TestingT, list, subset interface{}, msgAndArgs ...interface{}) (ok bool) {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	if subset == nil {
-		return true // we consider nil to be equal to the nil set
-	}
-
-	subsetValue := reflect.ValueOf(subset)
-	defer func() {
-		if e := recover(); e != nil {
-			ok = false
-		}
-	}()
-
-	listKind := reflect.TypeOf(list).Kind()
-	subsetKind := reflect.TypeOf(subset).Kind()
-
-	if listKind != reflect.Array && listKind != reflect.Slice {
-		return Fail(t, fmt.Sprintf("%q has an unsupported type %s", list, listKind), msgAndArgs...)
-	}
-
-	if subsetKind != reflect.Array && subsetKind != reflect.Slice {
-		return Fail(t, fmt.Sprintf("%q has an unsupported type %s", subset, subsetKind), msgAndArgs...)
-	}
-
-	for i := 0; i < subsetValue.Len(); i++ {
-		element := subsetValue.Index(i).Interface()
-		ok, found := includeElement(list, element)
-		if !ok {
-			return Fail(t, fmt.Sprintf("\"%s\" could not be applied builtin len()", list), msgAndArgs...)
-		}
-		if !found {
-			return Fail(t, fmt.Sprintf("\"%s\" does not contain \"%s\"", list, element), msgAndArgs...)
-		}
-	}
-
-	return true
-}
-
-// NotSubset asserts that the specified list(array, slice...) contains not all
-// elements given in the specified subset(array, slice...).
-//
-//    assert.NotSubset(t, [1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]")
-func NotSubset(t TestingT, list, subset interface{}, msgAndArgs ...interface{}) (ok bool) {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	if subset == nil {
-		return Fail(t, fmt.Sprintf("nil is the empty set which is a subset of every set"), msgAndArgs...)
-	}
-
-	subsetValue := reflect.ValueOf(subset)
-	defer func() {
-		if e := recover(); e != nil {
-			ok = false
-		}
-	}()
-
-	listKind := reflect.TypeOf(list).Kind()
-	subsetKind := reflect.TypeOf(subset).Kind()
-
-	if listKind != reflect.Array && listKind != reflect.Slice {
-		return Fail(t, fmt.Sprintf("%q has an unsupported type %s", list, listKind), msgAndArgs...)
-	}
-
-	if subsetKind != reflect.Array && subsetKind != reflect.Slice {
-		return Fail(t, fmt.Sprintf("%q has an unsupported type %s", subset, subsetKind), msgAndArgs...)
-	}
-
-	for i := 0; i < subsetValue.Len(); i++ {
-		element := subsetValue.Index(i).Interface()
-		ok, found := includeElement(list, element)
-		if !ok {
-			return Fail(t, fmt.Sprintf("\"%s\" could not be applied builtin len()", list), msgAndArgs...)
-		}
-		if !found {
-			return true
-		}
-	}
-
-	return Fail(t, fmt.Sprintf("%q is a subset of %q", subset, list), msgAndArgs...)
-}
-
-// ElementsMatch asserts that the specified listA(array, slice...) is equal to specified
-// listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
-// the number of appearances of each of them in both lists should match.
-//
-// assert.ElementsMatch(t, [1, 3, 2, 3], [1, 3, 3, 2])
-func ElementsMatch(t TestingT, listA, listB interface{}, msgAndArgs ...interface{}) (ok bool) {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	if isEmpty(listA) && isEmpty(listB) {
-		return true
-	}
-
-	aKind := reflect.TypeOf(listA).Kind()
-	bKind := reflect.TypeOf(listB).Kind()
-
-	if aKind != reflect.Array && aKind != reflect.Slice {
-		return Fail(t, fmt.Sprintf("%q has an unsupported type %s", listA, aKind), msgAndArgs...)
-	}
-
-	if bKind != reflect.Array && bKind != reflect.Slice {
-		return Fail(t, fmt.Sprintf("%q has an unsupported type %s", listB, bKind), msgAndArgs...)
-	}
-
-	aValue := reflect.ValueOf(listA)
-	bValue := reflect.ValueOf(listB)
-
-	aLen := aValue.Len()
-	bLen := bValue.Len()
-
-	if aLen != bLen {
-		return Fail(t, fmt.Sprintf("lengths don't match: %d != %d", aLen, bLen), msgAndArgs...)
-	}
-
-	// Mark indexes in bValue that we already used
-	visited := make([]bool, bLen)
-	for i := 0; i < aLen; i++ {
-		element := aValue.Index(i).Interface()
-		found := false
-		for j := 0; j < bLen; j++ {
-			if visited[j] {
-				continue
-			}
-			if ObjectsAreEqual(bValue.Index(j).Interface(), element) {
-				visited[j] = true
-				found = true
-				break
-			}
-		}
-		if !found {
-			return Fail(t, fmt.Sprintf("element %s appears more times in %s than in %s", element, aValue, bValue), msgAndArgs...)
-		}
-	}
-
-	return true
-}
-
-// Condition uses a Comparison to assert a complex condition.
-func Condition(t TestingT, comp Comparison, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	result := comp()
-	if !result {
-		Fail(t, "Condition failed!", msgAndArgs...)
-	}
-	return result
-}
-
-// PanicTestFunc defines a func that should be passed to the assert.Panics and assert.NotPanics
-// methods, and represents a simple func that takes no arguments, and returns nothing.
-type PanicTestFunc func()
-
-// didPanic returns true if the function passed to it panics. Otherwise, it returns false.
-func didPanic(f PanicTestFunc) (bool, interface{}) {
-
-	didPanic := false
-	var message interface{}
-	func() {
-
-		defer func() {
-			if message = recover(); message != nil {
-				didPanic = true
-			}
-		}()
-
-		// call the target function
-		f()
-
-	}()
-
-	return didPanic, message
-
-}
-
-// Panics asserts that the code inside the specified PanicTestFunc panics.
-//
-//   assert.Panics(t, func(){ GoCrazy() })
-func Panics(t TestingT, f PanicTestFunc, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-
-	if funcDidPanic, panicValue := didPanic(f); !funcDidPanic {
-		return Fail(t, fmt.Sprintf("func %#v should panic\n\tPanic value:\t%#v", f, panicValue), msgAndArgs...)
-	}
-
-	return true
-}
-
-// PanicsWithValue asserts that the code inside the specified PanicTestFunc panics, and that
-// the recovered panic value equals the expected panic value.
-//
-//   assert.PanicsWithValue(t, "crazy error", func(){ GoCrazy() })
-func PanicsWithValue(t TestingT, expected interface{}, f PanicTestFunc, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-
-	funcDidPanic, panicValue := didPanic(f)
-	if !funcDidPanic {
-		return Fail(t, fmt.Sprintf("func %#v should panic\n\tPanic value:\t%#v", f, panicValue), msgAndArgs...)
-	}
-	if panicValue != expected {
-		return Fail(t, fmt.Sprintf("func %#v should panic with value:\t%#v\n\tPanic value:\t%#v", f, expected, panicValue), msgAndArgs...)
-	}
-
-	return true
-}
-
-// NotPanics asserts that the code inside the specified PanicTestFunc does NOT panic.
-//
-//   assert.NotPanics(t, func(){ RemainCalm() })
-func NotPanics(t TestingT, f PanicTestFunc, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-
-	if funcDidPanic, panicValue := didPanic(f); funcDidPanic {
-		return Fail(t, fmt.Sprintf("func %#v should not panic\n\tPanic value:\t%v", f, panicValue), msgAndArgs...)
-	}
-
-	return true
-}
-
-// WithinDuration asserts that the two times are within duration delta of each other.
-//
-//   assert.WithinDuration(t, time.Now(), time.Now(), 10*time.Second)
-func WithinDuration(t TestingT, expected, actual time.Time, delta time.Duration, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-
-	dt := expected.Sub(actual)
-	if dt < -delta || dt > delta {
-		return Fail(t, fmt.Sprintf("Max difference between %v and %v allowed is %v, but difference was %v", expected, actual, delta, dt), msgAndArgs...)
-	}
-
-	return true
-}
-
-func toFloat(x interface{}) (float64, bool) {
-	var xf float64
-	xok := true
-
-	switch xn := x.(type) {
-	case uint8:
-		xf = float64(xn)
-	case uint16:
-		xf = float64(xn)
-	case uint32:
-		xf = float64(xn)
-	case uint64:
-		xf = float64(xn)
-	case int:
-		xf = float64(xn)
-	case int8:
-		xf = float64(xn)
-	case int16:
-		xf = float64(xn)
-	case int32:
-		xf = float64(xn)
-	case int64:
-		xf = float64(xn)
-	case float32:
-		xf = float64(xn)
-	case float64:
-		xf = float64(xn)
-	case time.Duration:
-		xf = float64(xn)
-	default:
-		xok = false
-	}
-
-	return xf, xok
-}
-
-// InDelta asserts that the two numerals are within delta of each other.
-//
-// 	 assert.InDelta(t, math.Pi, (22 / 7.0), 0.01)
-func InDelta(t TestingT, expected, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-
-	af, aok := toFloat(expected)
-	bf, bok := toFloat(actual)
-
-	if !aok || !bok {
-		return Fail(t, fmt.Sprintf("Parameters must be numerical"), msgAndArgs...)
-	}
-
-	if math.IsNaN(af) {
-		return Fail(t, fmt.Sprintf("Expected must not be NaN"), msgAndArgs...)
-	}
-
-	if math.IsNaN(bf) {
-		return Fail(t, fmt.Sprintf("Expected %v with delta %v, but was NaN", expected, delta), msgAndArgs...)
-	}
-
-	dt := af - bf
-	if dt < -delta || dt > delta {
-		return Fail(t, fmt.Sprintf("Max difference between %v and %v allowed is %v, but difference was %v", expected, actual, delta, dt), msgAndArgs...)
-	}
-
-	return true
-}
-
-// InDeltaSlice is the same as InDelta, except it compares two slices.
-func InDeltaSlice(t TestingT, expected, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	if expected == nil || actual == nil ||
-		reflect.TypeOf(actual).Kind() != reflect.Slice ||
-		reflect.TypeOf(expected).Kind() != reflect.Slice {
-		return Fail(t, fmt.Sprintf("Parameters must be slice"), msgAndArgs...)
-	}
-
-	actualSlice := reflect.ValueOf(actual)
-	expectedSlice := reflect.ValueOf(expected)
-
-	for i := 0; i < actualSlice.Len(); i++ {
-		result := InDelta(t, actualSlice.Index(i).Interface(), expectedSlice.Index(i).Interface(), delta, msgAndArgs...)
-		if !result {
-			return result
-		}
-	}
-
-	return true
-}
-
-// InDeltaMapValues is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
-func InDeltaMapValues(t TestingT, expected, actual interface{}, delta float64, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	if expected == nil || actual == nil ||
-		reflect.TypeOf(actual).Kind() != reflect.Map ||
-		reflect.TypeOf(expected).Kind() != reflect.Map {
-		return Fail(t, "Arguments must be maps", msgAndArgs...)
-	}
-
-	expectedMap := reflect.ValueOf(expected)
-	actualMap := reflect.ValueOf(actual)
-
-	if expectedMap.Len() != actualMap.Len() {
-		return Fail(t, "Arguments must have the same number of keys", msgAndArgs...)
-	}
-
-	for _, k := range expectedMap.MapKeys() {
-		ev := expectedMap.MapIndex(k)
-		av := actualMap.MapIndex(k)
-
-		if !ev.IsValid() {
-			return Fail(t, fmt.Sprintf("missing key %q in expected map", k), msgAndArgs...)
-		}
-
-		if !av.IsValid() {
-			return Fail(t, fmt.Sprintf("missing key %q in actual map", k), msgAndArgs...)
-		}
-
-		if !InDelta(
-			t,
-			ev.Interface(),
-			av.Interface(),
-			delta,
-			msgAndArgs...,
-		) {
-			return false
-		}
-	}
-
-	return true
-}
-
-func calcRelativeError(expected, actual interface{}) (float64, error) {
-	af, aok := toFloat(expected)
-	if !aok {
-		return 0, fmt.Errorf("expected value %q cannot be converted to float", expected)
-	}
-	if af == 0 {
-		return 0, fmt.Errorf("expected value must have a value other than zero to calculate the relative error")
-	}
-	bf, bok := toFloat(actual)
-	if !bok {
-		return 0, fmt.Errorf("actual value %q cannot be converted to float", actual)
-	}
-
-	return math.Abs(af-bf) / math.Abs(af), nil
-}
-
-// InEpsilon asserts that expected and actual have a relative error less than epsilon
-func InEpsilon(t TestingT, expected, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	actualEpsilon, err := calcRelativeError(expected, actual)
-	if err != nil {
-		return Fail(t, err.Error(), msgAndArgs...)
-	}
-	if actualEpsilon > epsilon {
-		return Fail(t, fmt.Sprintf("Relative error is too high: %#v (expected)\n"+
-			"        < %#v (actual)", epsilon, actualEpsilon), msgAndArgs...)
-	}
-
-	return true
-}
-
-// InEpsilonSlice is the same as InEpsilon, except it compares each value from two slices.
-func InEpsilonSlice(t TestingT, expected, actual interface{}, epsilon float64, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	if expected == nil || actual == nil ||
-		reflect.TypeOf(actual).Kind() != reflect.Slice ||
-		reflect.TypeOf(expected).Kind() != reflect.Slice {
-		return Fail(t, fmt.Sprintf("Parameters must be slice"), msgAndArgs...)
-	}
-
-	actualSlice := reflect.ValueOf(actual)
-	expectedSlice := reflect.ValueOf(expected)
-
-	for i := 0; i < actualSlice.Len(); i++ {
-		result := InEpsilon(t, actualSlice.Index(i).Interface(), expectedSlice.Index(i).Interface(), epsilon)
-		if !result {
-			return result
-		}
-	}
-
-	return true
-}
-
-/*
-	Errors
-*/
-
-// NoError asserts that a function returned no error (i.e. `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if assert.NoError(t, err) {
-//	   assert.Equal(t, expectedObj, actualObj)
-//   }
-func NoError(t TestingT, err error, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	if err != nil {
-		return Fail(t, fmt.Sprintf("Received unexpected error:\n%+v", err), msgAndArgs...)
-	}
-
-	return true
-}
-
-// Error asserts that a function returned an error (i.e. not `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if assert.Error(t, err) {
-//	   assert.Equal(t, expectedError, err)
-//   }
-func Error(t TestingT, err error, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-
-	if err == nil {
-		return Fail(t, "An error is expected but got nil.", msgAndArgs...)
-	}
-
-	return true
-}
-
-// EqualError asserts that a function returned an error (i.e. not `nil`)
-// and that it is equal to the provided error.
-//
-//   actualObj, err := SomeFunction()
-//   assert.EqualError(t, err,  expectedErrorString)
-func EqualError(t TestingT, theError error, errString string, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	if !Error(t, theError, msgAndArgs...) {
-		return false
-	}
-	expected := errString
-	actual := theError.Error()
-	// don't need to use deep equals here, we know they are both strings
-	if expected != actual {
-		return Fail(t, fmt.Sprintf("Error message not equal:\n"+
-			"expected: %q\n"+
-			"actual  : %q", expected, actual), msgAndArgs...)
-	}
-	return true
-}
-
-// matchRegexp return true if a specified regexp matches a string.
-func matchRegexp(rx interface{}, str interface{}) bool {
-
-	var r *regexp.Regexp
-	if rr, ok := rx.(*regexp.Regexp); ok {
-		r = rr
-	} else {
-		r = regexp.MustCompile(fmt.Sprint(rx))
-	}
-
-	return (r.FindStringIndex(fmt.Sprint(str)) != nil)
-
-}
-
-// Regexp asserts that a specified regexp matches a string.
-//
-//  assert.Regexp(t, regexp.MustCompile("start"), "it's starting")
-//  assert.Regexp(t, "start...$", "it's not starting")
-func Regexp(t TestingT, rx interface{}, str interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-
-	match := matchRegexp(rx, str)
-
-	if !match {
-		Fail(t, fmt.Sprintf("Expect \"%v\" to match \"%v\"", str, rx), msgAndArgs...)
-	}
-
-	return match
-}
-
-// NotRegexp asserts that a specified regexp does not match a string.
-//
-//  assert.NotRegexp(t, regexp.MustCompile("starts"), "it's starting")
-//  assert.NotRegexp(t, "^start", "it's not starting")
-func NotRegexp(t TestingT, rx interface{}, str interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	match := matchRegexp(rx, str)
-
-	if match {
-		Fail(t, fmt.Sprintf("Expect \"%v\" to NOT match \"%v\"", str, rx), msgAndArgs...)
-	}
-
-	return !match
-
-}
-
-// Zero asserts that i is the zero value for its type.
-func Zero(t TestingT, i interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	if i != nil && !reflect.DeepEqual(i, reflect.Zero(reflect.TypeOf(i)).Interface()) {
-		return Fail(t, fmt.Sprintf("Should be zero, but was %v", i), msgAndArgs...)
-	}
-	return true
-}
-
-// NotZero asserts that i is not the zero value for its type.
-func NotZero(t TestingT, i interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	if i == nil || reflect.DeepEqual(i, reflect.Zero(reflect.TypeOf(i)).Interface()) {
-		return Fail(t, fmt.Sprintf("Should not be zero, but was %v", i), msgAndArgs...)
-	}
-	return true
-}
-
-// FileExists checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
-func FileExists(t TestingT, path string, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	info, err := os.Lstat(path)
-	if err != nil {
-		if os.IsNotExist(err) {
-			return Fail(t, fmt.Sprintf("unable to find file %q", path), msgAndArgs...)
-		}
-		return Fail(t, fmt.Sprintf("error when running os.Lstat(%q): %s", path, err), msgAndArgs...)
-	}
-	if info.IsDir() {
-		return Fail(t, fmt.Sprintf("%q is a directory", path), msgAndArgs...)
-	}
-	return true
-}
-
-// DirExists checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
-func DirExists(t TestingT, path string, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	info, err := os.Lstat(path)
-	if err != nil {
-		if os.IsNotExist(err) {
-			return Fail(t, fmt.Sprintf("unable to find file %q", path), msgAndArgs...)
-		}
-		return Fail(t, fmt.Sprintf("error when running os.Lstat(%q): %s", path, err), msgAndArgs...)
-	}
-	if !info.IsDir() {
-		return Fail(t, fmt.Sprintf("%q is a file", path), msgAndArgs...)
-	}
-	return true
-}
-
-// JSONEq asserts that two JSON strings are equivalent.
-//
-//  assert.JSONEq(t, `{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`)
-func JSONEq(t TestingT, expected string, actual string, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	var expectedJSONAsInterface, actualJSONAsInterface interface{}
-
-	if err := json.Unmarshal([]byte(expected), &expectedJSONAsInterface); err != nil {
-		return Fail(t, fmt.Sprintf("Expected value ('%s') is not valid json.\nJSON parsing error: '%s'", expected, err.Error()), msgAndArgs...)
-	}
-
-	if err := json.Unmarshal([]byte(actual), &actualJSONAsInterface); err != nil {
-		return Fail(t, fmt.Sprintf("Input ('%s') needs to be valid json.\nJSON parsing error: '%s'", actual, err.Error()), msgAndArgs...)
-	}
-
-	return Equal(t, expectedJSONAsInterface, actualJSONAsInterface, msgAndArgs...)
-}
-
-func typeAndKind(v interface{}) (reflect.Type, reflect.Kind) {
-	t := reflect.TypeOf(v)
-	k := t.Kind()
-
-	if k == reflect.Ptr {
-		t = t.Elem()
-		k = t.Kind()
-	}
-	return t, k
-}
-
-// diff returns a diff of both values as long as both are of the same type and
-// are a struct, map, slice or array. Otherwise it returns an empty string.
-func diff(expected interface{}, actual interface{}) string {
-	if expected == nil || actual == nil {
-		return ""
-	}
-
-	et, ek := typeAndKind(expected)
-	at, _ := typeAndKind(actual)
-
-	if et != at {
-		return ""
-	}
-
-	if ek != reflect.Struct && ek != reflect.Map && ek != reflect.Slice && ek != reflect.Array && ek != reflect.String {
-		return ""
-	}
-
-	var e, a string
-	if ek != reflect.String {
-		e = spewConfig.Sdump(expected)
-		a = spewConfig.Sdump(actual)
-	} else {
-		e = expected.(string)
-		a = actual.(string)
-	}
-
-	diff, _ := difflib.GetUnifiedDiffString(difflib.UnifiedDiff{
-		A:        difflib.SplitLines(e),
-		B:        difflib.SplitLines(a),
-		FromFile: "Expected",
-		FromDate: "",
-		ToFile:   "Actual",
-		ToDate:   "",
-		Context:  1,
-	})
-
-	return "\n\nDiff:\n" + diff
-}
-
-// validateEqualArgs checks whether provided arguments can be safely used in the
-// Equal/NotEqual functions.
-func validateEqualArgs(expected, actual interface{}) error {
-	if isFunction(expected) || isFunction(actual) {
-		return errors.New("cannot take func type as argument")
-	}
-	return nil
-}
-
-func isFunction(arg interface{}) bool {
-	if arg == nil {
-		return false
-	}
-	return reflect.TypeOf(arg).Kind() == reflect.Func
-}
-
-var spewConfig = spew.ConfigState{
-	Indent:                  " ",
-	DisablePointerAddresses: true,
-	DisableCapacities:       true,
-	SortKeys:                true,
-}
-
-type tHelper interface {
-	Helper()
-}

libnetwork/vendor/github.com/stretchr/testify/assert/doc.go

@@ -1,45 +0,0 @@
-// Package assert provides a set of comprehensive testing tools for use with the normal Go testing system.
-//
-// Example Usage
-//
-// The following is a complete example using assert in a standard test function:
-//    import (
-//      "testing"
-//      "github.com/stretchr/testify/assert"
-//    )
-//
-//    func TestSomething(t *testing.T) {
-//
-//      var a string = "Hello"
-//      var b string = "Hello"
-//
-//      assert.Equal(t, a, b, "The two words should be the same.")
-//
-//    }
-//
-// if you assert many times, use the format below:
-//
-//    import (
-//      "testing"
-//      "github.com/stretchr/testify/assert"
-//    )
-//
-//    func TestSomething(t *testing.T) {
-//      assert := assert.New(t)
-//
-//      var a string = "Hello"
-//      var b string = "Hello"
-//
-//      assert.Equal(a, b, "The two words should be the same.")
-//    }
-//
-// Assertions
-//
-// Assertions allow you to easily write test code, and are global funcs in the `assert` package.
-// All assertion functions take, as the first argument, the `*testing.T` object provided by the
-// testing framework. This allows the assertion funcs to write the failings and other details to
-// the correct place.
-//
-// Every assertion function also takes an optional string message as the final argument,
-// allowing custom error messages to be appended to the message the assertion method outputs.
-package assert

libnetwork/vendor/github.com/stretchr/testify/assert/errors.go

@@ -1,10 +0,0 @@
-package assert
-
-import (
-	"errors"
-)
-
-// AnError is an error instance useful for testing.  If the code does not care
-// about error specifics, and only needs to return the error for example, this
-// error should be used to make the test code more readable.
-var AnError = errors.New("assert.AnError general error for testing")

libnetwork/vendor/github.com/stretchr/testify/assert/forward_assertions.go

@@ -1,16 +0,0 @@
-package assert
-
-// Assertions provides assertion methods around the
-// TestingT interface.
-type Assertions struct {
-	t TestingT
-}
-
-// New makes a new Assertions object for the specified TestingT.
-func New(t TestingT) *Assertions {
-	return &Assertions{
-		t: t,
-	}
-}
-
-//go:generate go run ../_codegen/main.go -output-package=assert -template=assertion_forward.go.tmpl -include-format-funcs

libnetwork/vendor/github.com/stretchr/testify/assert/http_assertions.go

@@ -1,143 +0,0 @@
-package assert
-
-import (
-	"fmt"
-	"net/http"
-	"net/http/httptest"
-	"net/url"
-	"strings"
-)
-
-// httpCode is a helper that returns HTTP code of the response. It returns -1 and
-// an error if building a new request fails.
-func httpCode(handler http.HandlerFunc, method, url string, values url.Values) (int, error) {
-	w := httptest.NewRecorder()
-	req, err := http.NewRequest(method, url, nil)
-	if err != nil {
-		return -1, err
-	}
-	req.URL.RawQuery = values.Encode()
-	handler(w, req)
-	return w.Code, nil
-}
-
-// HTTPSuccess asserts that a specified handler returns a success status code.
-//
-//  assert.HTTPSuccess(t, myHandler, "POST", "http://www.google.com", nil)
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPSuccess(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	code, err := httpCode(handler, method, url, values)
-	if err != nil {
-		Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
-		return false
-	}
-
-	isSuccessCode := code >= http.StatusOK && code <= http.StatusPartialContent
-	if !isSuccessCode {
-		Fail(t, fmt.Sprintf("Expected HTTP success status code for %q but received %d", url+"?"+values.Encode(), code))
-	}
-
-	return isSuccessCode
-}
-
-// HTTPRedirect asserts that a specified handler returns a redirect status code.
-//
-//  assert.HTTPRedirect(t, myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPRedirect(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	code, err := httpCode(handler, method, url, values)
-	if err != nil {
-		Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
-		return false
-	}
-
-	isRedirectCode := code >= http.StatusMultipleChoices && code <= http.StatusTemporaryRedirect
-	if !isRedirectCode {
-		Fail(t, fmt.Sprintf("Expected HTTP redirect status code for %q but received %d", url+"?"+values.Encode(), code))
-	}
-
-	return isRedirectCode
-}
-
-// HTTPError asserts that a specified handler returns an error status code.
-//
-//  assert.HTTPError(t, myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPError(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	code, err := httpCode(handler, method, url, values)
-	if err != nil {
-		Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
-		return false
-	}
-
-	isErrorCode := code >= http.StatusBadRequest
-	if !isErrorCode {
-		Fail(t, fmt.Sprintf("Expected HTTP error status code for %q but received %d", url+"?"+values.Encode(), code))
-	}
-
-	return isErrorCode
-}
-
-// HTTPBody is a helper that returns HTTP body of the response. It returns
-// empty string if building a new request fails.
-func HTTPBody(handler http.HandlerFunc, method, url string, values url.Values) string {
-	w := httptest.NewRecorder()
-	req, err := http.NewRequest(method, url+"?"+values.Encode(), nil)
-	if err != nil {
-		return ""
-	}
-	handler(w, req)
-	return w.Body.String()
-}
-
-// HTTPBodyContains asserts that a specified handler returns a
-// body that contains a string.
-//
-//  assert.HTTPBodyContains(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPBodyContains(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	body := HTTPBody(handler, method, url, values)
-
-	contains := strings.Contains(body, fmt.Sprint(str))
-	if !contains {
-		Fail(t, fmt.Sprintf("Expected response body for \"%s\" to contain \"%s\" but found \"%s\"", url+"?"+values.Encode(), str, body))
-	}
-
-	return contains
-}
-
-// HTTPBodyNotContains asserts that a specified handler returns a
-// body that does not contain a string.
-//
-//  assert.HTTPBodyNotContains(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPBodyNotContains(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool {
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	body := HTTPBody(handler, method, url, values)
-
-	contains := strings.Contains(body, fmt.Sprint(str))
-	if contains {
-		Fail(t, fmt.Sprintf("Expected response body for \"%s\" to NOT contain \"%s\" but found \"%s\"", url+"?"+values.Encode(), str, body))
-	}
-
-	return !contains
-}

libnetwork/vendor/github.com/stretchr/testify/require/doc.go

@@ -1,28 +0,0 @@
-// Package require implements the same assertions as the `assert` package but
-// stops test execution when a test fails.
-//
-// Example Usage
-//
-// The following is a complete example using require in a standard test function:
-//    import (
-//      "testing"
-//      "github.com/stretchr/testify/require"
-//    )
-//
-//    func TestSomething(t *testing.T) {
-//
-//      var a string = "Hello"
-//      var b string = "Hello"
-//
-//      require.Equal(t, a, b, "The two words should be the same.")
-//
-//    }
-//
-// Assertions
-//
-// The `require` package have same global functions as in the `assert` package,
-// but instead of returning a boolean result they call `t.FailNow()`.
-//
-// Every assertion function also takes an optional string message as the final argument,
-// allowing custom error messages to be appended to the message the assertion method outputs.
-package require

libnetwork/vendor/github.com/stretchr/testify/require/forward_requirements.go

@@ -1,16 +0,0 @@
-package require
-
-// Assertions provides assertion methods around the
-// TestingT interface.
-type Assertions struct {
-	t TestingT
-}
-
-// New makes a new Assertions object for the specified TestingT.
-func New(t TestingT) *Assertions {
-	return &Assertions{
-		t: t,
-	}
-}
-
-//go:generate go run ../_codegen/main.go -output-package=require -template=require_forward.go.tmpl -include-format-funcs

libnetwork/vendor/github.com/stretchr/testify/require/require.go

@@ -1,1227 +0,0 @@
-/*
-* CODE GENERATED AUTOMATICALLY WITH github.com/stretchr/testify/_codegen
-* THIS FILE MUST NOT BE EDITED BY HAND
- */
-
-package require
-
-import (
-	assert "github.com/stretchr/testify/assert"
-	http "net/http"
-	url "net/url"
-	time "time"
-)
-
-// Condition uses a Comparison to assert a complex condition.
-func Condition(t TestingT, comp assert.Comparison, msgAndArgs ...interface{}) {
-	if assert.Condition(t, comp, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Conditionf uses a Comparison to assert a complex condition.
-func Conditionf(t TestingT, comp assert.Comparison, msg string, args ...interface{}) {
-	if assert.Conditionf(t, comp, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Contains asserts that the specified string, list(array, slice...) or map contains the
-// specified substring or element.
-//
-//    assert.Contains(t, "Hello World", "World")
-//    assert.Contains(t, ["Hello", "World"], "World")
-//    assert.Contains(t, {"Hello": "World"}, "Hello")
-func Contains(t TestingT, s interface{}, contains interface{}, msgAndArgs ...interface{}) {
-	if assert.Contains(t, s, contains, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Containsf asserts that the specified string, list(array, slice...) or map contains the
-// specified substring or element.
-//
-//    assert.Containsf(t, "Hello World", "World", "error message %s", "formatted")
-//    assert.Containsf(t, ["Hello", "World"], "World", "error message %s", "formatted")
-//    assert.Containsf(t, {"Hello": "World"}, "Hello", "error message %s", "formatted")
-func Containsf(t TestingT, s interface{}, contains interface{}, msg string, args ...interface{}) {
-	if assert.Containsf(t, s, contains, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// DirExists checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
-func DirExists(t TestingT, path string, msgAndArgs ...interface{}) {
-	if assert.DirExists(t, path, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// DirExistsf checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
-func DirExistsf(t TestingT, path string, msg string, args ...interface{}) {
-	if assert.DirExistsf(t, path, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// ElementsMatch asserts that the specified listA(array, slice...) is equal to specified
-// listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
-// the number of appearances of each of them in both lists should match.
-//
-// assert.ElementsMatch(t, [1, 3, 2, 3], [1, 3, 3, 2])
-func ElementsMatch(t TestingT, listA interface{}, listB interface{}, msgAndArgs ...interface{}) {
-	if assert.ElementsMatch(t, listA, listB, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// ElementsMatchf asserts that the specified listA(array, slice...) is equal to specified
-// listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
-// the number of appearances of each of them in both lists should match.
-//
-// assert.ElementsMatchf(t, [1, 3, 2, 3], [1, 3, 3, 2], "error message %s", "formatted")
-func ElementsMatchf(t TestingT, listA interface{}, listB interface{}, msg string, args ...interface{}) {
-	if assert.ElementsMatchf(t, listA, listB, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Empty asserts that the specified object is empty.  I.e. nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  assert.Empty(t, obj)
-func Empty(t TestingT, object interface{}, msgAndArgs ...interface{}) {
-	if assert.Empty(t, object, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Emptyf asserts that the specified object is empty.  I.e. nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  assert.Emptyf(t, obj, "error message %s", "formatted")
-func Emptyf(t TestingT, object interface{}, msg string, args ...interface{}) {
-	if assert.Emptyf(t, object, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Equal asserts that two objects are equal.
-//
-//    assert.Equal(t, 123, 123)
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses). Function equality
-// cannot be determined and will always fail.
-func Equal(t TestingT, expected interface{}, actual interface{}, msgAndArgs ...interface{}) {
-	if assert.Equal(t, expected, actual, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// EqualError asserts that a function returned an error (i.e. not `nil`)
-// and that it is equal to the provided error.
-//
-//   actualObj, err := SomeFunction()
-//   assert.EqualError(t, err,  expectedErrorString)
-func EqualError(t TestingT, theError error, errString string, msgAndArgs ...interface{}) {
-	if assert.EqualError(t, theError, errString, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// EqualErrorf asserts that a function returned an error (i.e. not `nil`)
-// and that it is equal to the provided error.
-//
-//   actualObj, err := SomeFunction()
-//   assert.EqualErrorf(t, err,  expectedErrorString, "error message %s", "formatted")
-func EqualErrorf(t TestingT, theError error, errString string, msg string, args ...interface{}) {
-	if assert.EqualErrorf(t, theError, errString, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// EqualValues asserts that two objects are equal or convertable to the same types
-// and equal.
-//
-//    assert.EqualValues(t, uint32(123), int32(123))
-func EqualValues(t TestingT, expected interface{}, actual interface{}, msgAndArgs ...interface{}) {
-	if assert.EqualValues(t, expected, actual, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// EqualValuesf asserts that two objects are equal or convertable to the same types
-// and equal.
-//
-//    assert.EqualValuesf(t, uint32(123, "error message %s", "formatted"), int32(123))
-func EqualValuesf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) {
-	if assert.EqualValuesf(t, expected, actual, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Equalf asserts that two objects are equal.
-//
-//    assert.Equalf(t, 123, 123, "error message %s", "formatted")
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses). Function equality
-// cannot be determined and will always fail.
-func Equalf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) {
-	if assert.Equalf(t, expected, actual, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Error asserts that a function returned an error (i.e. not `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if assert.Error(t, err) {
-// 	   assert.Equal(t, expectedError, err)
-//   }
-func Error(t TestingT, err error, msgAndArgs ...interface{}) {
-	if assert.Error(t, err, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Errorf asserts that a function returned an error (i.e. not `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if assert.Errorf(t, err, "error message %s", "formatted") {
-// 	   assert.Equal(t, expectedErrorf, err)
-//   }
-func Errorf(t TestingT, err error, msg string, args ...interface{}) {
-	if assert.Errorf(t, err, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Exactly asserts that two objects are equal in value and type.
-//
-//    assert.Exactly(t, int32(123), int64(123))
-func Exactly(t TestingT, expected interface{}, actual interface{}, msgAndArgs ...interface{}) {
-	if assert.Exactly(t, expected, actual, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Exactlyf asserts that two objects are equal in value and type.
-//
-//    assert.Exactlyf(t, int32(123, "error message %s", "formatted"), int64(123))
-func Exactlyf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) {
-	if assert.Exactlyf(t, expected, actual, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Fail reports a failure through
-func Fail(t TestingT, failureMessage string, msgAndArgs ...interface{}) {
-	if assert.Fail(t, failureMessage, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// FailNow fails test
-func FailNow(t TestingT, failureMessage string, msgAndArgs ...interface{}) {
-	if assert.FailNow(t, failureMessage, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// FailNowf fails test
-func FailNowf(t TestingT, failureMessage string, msg string, args ...interface{}) {
-	if assert.FailNowf(t, failureMessage, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Failf reports a failure through
-func Failf(t TestingT, failureMessage string, msg string, args ...interface{}) {
-	if assert.Failf(t, failureMessage, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// False asserts that the specified value is false.
-//
-//    assert.False(t, myBool)
-func False(t TestingT, value bool, msgAndArgs ...interface{}) {
-	if assert.False(t, value, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Falsef asserts that the specified value is false.
-//
-//    assert.Falsef(t, myBool, "error message %s", "formatted")
-func Falsef(t TestingT, value bool, msg string, args ...interface{}) {
-	if assert.Falsef(t, value, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// FileExists checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
-func FileExists(t TestingT, path string, msgAndArgs ...interface{}) {
-	if assert.FileExists(t, path, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// FileExistsf checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
-func FileExistsf(t TestingT, path string, msg string, args ...interface{}) {
-	if assert.FileExistsf(t, path, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// HTTPBodyContains asserts that a specified handler returns a
-// body that contains a string.
-//
-//  assert.HTTPBodyContains(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPBodyContains(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) {
-	if assert.HTTPBodyContains(t, handler, method, url, values, str, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// HTTPBodyContainsf asserts that a specified handler returns a
-// body that contains a string.
-//
-//  assert.HTTPBodyContainsf(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPBodyContainsf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) {
-	if assert.HTTPBodyContainsf(t, handler, method, url, values, str, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// HTTPBodyNotContains asserts that a specified handler returns a
-// body that does not contain a string.
-//
-//  assert.HTTPBodyNotContains(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPBodyNotContains(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) {
-	if assert.HTTPBodyNotContains(t, handler, method, url, values, str, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// HTTPBodyNotContainsf asserts that a specified handler returns a
-// body that does not contain a string.
-//
-//  assert.HTTPBodyNotContainsf(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPBodyNotContainsf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) {
-	if assert.HTTPBodyNotContainsf(t, handler, method, url, values, str, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// HTTPError asserts that a specified handler returns an error status code.
-//
-//  assert.HTTPError(t, myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPError(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) {
-	if assert.HTTPError(t, handler, method, url, values, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// HTTPErrorf asserts that a specified handler returns an error status code.
-//
-//  assert.HTTPErrorf(t, myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
-func HTTPErrorf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) {
-	if assert.HTTPErrorf(t, handler, method, url, values, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// HTTPRedirect asserts that a specified handler returns a redirect status code.
-//
-//  assert.HTTPRedirect(t, myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPRedirect(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) {
-	if assert.HTTPRedirect(t, handler, method, url, values, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// HTTPRedirectf asserts that a specified handler returns a redirect status code.
-//
-//  assert.HTTPRedirectf(t, myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
-func HTTPRedirectf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) {
-	if assert.HTTPRedirectf(t, handler, method, url, values, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// HTTPSuccess asserts that a specified handler returns a success status code.
-//
-//  assert.HTTPSuccess(t, myHandler, "POST", "http://www.google.com", nil)
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPSuccess(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) {
-	if assert.HTTPSuccess(t, handler, method, url, values, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// HTTPSuccessf asserts that a specified handler returns a success status code.
-//
-//  assert.HTTPSuccessf(t, myHandler, "POST", "http://www.google.com", nil, "error message %s", "formatted")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func HTTPSuccessf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) {
-	if assert.HTTPSuccessf(t, handler, method, url, values, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Implements asserts that an object is implemented by the specified interface.
-//
-//    assert.Implements(t, (*MyInterface)(nil), new(MyObject))
-func Implements(t TestingT, interfaceObject interface{}, object interface{}, msgAndArgs ...interface{}) {
-	if assert.Implements(t, interfaceObject, object, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Implementsf asserts that an object is implemented by the specified interface.
-//
-//    assert.Implementsf(t, (*MyInterface, "error message %s", "formatted")(nil), new(MyObject))
-func Implementsf(t TestingT, interfaceObject interface{}, object interface{}, msg string, args ...interface{}) {
-	if assert.Implementsf(t, interfaceObject, object, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// InDelta asserts that the two numerals are within delta of each other.
-//
-// 	 assert.InDelta(t, math.Pi, (22 / 7.0), 0.01)
-func InDelta(t TestingT, expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) {
-	if assert.InDelta(t, expected, actual, delta, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// InDeltaMapValues is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
-func InDeltaMapValues(t TestingT, expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) {
-	if assert.InDeltaMapValues(t, expected, actual, delta, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// InDeltaMapValuesf is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
-func InDeltaMapValuesf(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) {
-	if assert.InDeltaMapValuesf(t, expected, actual, delta, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// InDeltaSlice is the same as InDelta, except it compares two slices.
-func InDeltaSlice(t TestingT, expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) {
-	if assert.InDeltaSlice(t, expected, actual, delta, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// InDeltaSlicef is the same as InDelta, except it compares two slices.
-func InDeltaSlicef(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) {
-	if assert.InDeltaSlicef(t, expected, actual, delta, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// InDeltaf asserts that the two numerals are within delta of each other.
-//
-// 	 assert.InDeltaf(t, math.Pi, (22 / 7.0, "error message %s", "formatted"), 0.01)
-func InDeltaf(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) {
-	if assert.InDeltaf(t, expected, actual, delta, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// InEpsilon asserts that expected and actual have a relative error less than epsilon
-func InEpsilon(t TestingT, expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{}) {
-	if assert.InEpsilon(t, expected, actual, epsilon, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// InEpsilonSlice is the same as InEpsilon, except it compares each value from two slices.
-func InEpsilonSlice(t TestingT, expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{}) {
-	if assert.InEpsilonSlice(t, expected, actual, epsilon, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// InEpsilonSlicef is the same as InEpsilon, except it compares each value from two slices.
-func InEpsilonSlicef(t TestingT, expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) {
-	if assert.InEpsilonSlicef(t, expected, actual, epsilon, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// InEpsilonf asserts that expected and actual have a relative error less than epsilon
-func InEpsilonf(t TestingT, expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) {
-	if assert.InEpsilonf(t, expected, actual, epsilon, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// IsType asserts that the specified objects are of the same type.
-func IsType(t TestingT, expectedType interface{}, object interface{}, msgAndArgs ...interface{}) {
-	if assert.IsType(t, expectedType, object, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// IsTypef asserts that the specified objects are of the same type.
-func IsTypef(t TestingT, expectedType interface{}, object interface{}, msg string, args ...interface{}) {
-	if assert.IsTypef(t, expectedType, object, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// JSONEq asserts that two JSON strings are equivalent.
-//
-//  assert.JSONEq(t, `{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`)
-func JSONEq(t TestingT, expected string, actual string, msgAndArgs ...interface{}) {
-	if assert.JSONEq(t, expected, actual, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// JSONEqf asserts that two JSON strings are equivalent.
-//
-//  assert.JSONEqf(t, `{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`, "error message %s", "formatted")
-func JSONEqf(t TestingT, expected string, actual string, msg string, args ...interface{}) {
-	if assert.JSONEqf(t, expected, actual, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Len asserts that the specified object has specific length.
-// Len also fails if the object has a type that len() not accept.
-//
-//    assert.Len(t, mySlice, 3)
-func Len(t TestingT, object interface{}, length int, msgAndArgs ...interface{}) {
-	if assert.Len(t, object, length, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Lenf asserts that the specified object has specific length.
-// Lenf also fails if the object has a type that len() not accept.
-//
-//    assert.Lenf(t, mySlice, 3, "error message %s", "formatted")
-func Lenf(t TestingT, object interface{}, length int, msg string, args ...interface{}) {
-	if assert.Lenf(t, object, length, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Nil asserts that the specified object is nil.
-//
-//    assert.Nil(t, err)
-func Nil(t TestingT, object interface{}, msgAndArgs ...interface{}) {
-	if assert.Nil(t, object, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Nilf asserts that the specified object is nil.
-//
-//    assert.Nilf(t, err, "error message %s", "formatted")
-func Nilf(t TestingT, object interface{}, msg string, args ...interface{}) {
-	if assert.Nilf(t, object, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NoError asserts that a function returned no error (i.e. `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if assert.NoError(t, err) {
-// 	   assert.Equal(t, expectedObj, actualObj)
-//   }
-func NoError(t TestingT, err error, msgAndArgs ...interface{}) {
-	if assert.NoError(t, err, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NoErrorf asserts that a function returned no error (i.e. `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if assert.NoErrorf(t, err, "error message %s", "formatted") {
-// 	   assert.Equal(t, expectedObj, actualObj)
-//   }
-func NoErrorf(t TestingT, err error, msg string, args ...interface{}) {
-	if assert.NoErrorf(t, err, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotContains asserts that the specified string, list(array, slice...) or map does NOT contain the
-// specified substring or element.
-//
-//    assert.NotContains(t, "Hello World", "Earth")
-//    assert.NotContains(t, ["Hello", "World"], "Earth")
-//    assert.NotContains(t, {"Hello": "World"}, "Earth")
-func NotContains(t TestingT, s interface{}, contains interface{}, msgAndArgs ...interface{}) {
-	if assert.NotContains(t, s, contains, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotContainsf asserts that the specified string, list(array, slice...) or map does NOT contain the
-// specified substring or element.
-//
-//    assert.NotContainsf(t, "Hello World", "Earth", "error message %s", "formatted")
-//    assert.NotContainsf(t, ["Hello", "World"], "Earth", "error message %s", "formatted")
-//    assert.NotContainsf(t, {"Hello": "World"}, "Earth", "error message %s", "formatted")
-func NotContainsf(t TestingT, s interface{}, contains interface{}, msg string, args ...interface{}) {
-	if assert.NotContainsf(t, s, contains, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotEmpty asserts that the specified object is NOT empty.  I.e. not nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  if assert.NotEmpty(t, obj) {
-//    assert.Equal(t, "two", obj[1])
-//  }
-func NotEmpty(t TestingT, object interface{}, msgAndArgs ...interface{}) {
-	if assert.NotEmpty(t, object, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotEmptyf asserts that the specified object is NOT empty.  I.e. not nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  if assert.NotEmptyf(t, obj, "error message %s", "formatted") {
-//    assert.Equal(t, "two", obj[1])
-//  }
-func NotEmptyf(t TestingT, object interface{}, msg string, args ...interface{}) {
-	if assert.NotEmptyf(t, object, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotEqual asserts that the specified values are NOT equal.
-//
-//    assert.NotEqual(t, obj1, obj2)
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses).
-func NotEqual(t TestingT, expected interface{}, actual interface{}, msgAndArgs ...interface{}) {
-	if assert.NotEqual(t, expected, actual, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotEqualf asserts that the specified values are NOT equal.
-//
-//    assert.NotEqualf(t, obj1, obj2, "error message %s", "formatted")
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses).
-func NotEqualf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) {
-	if assert.NotEqualf(t, expected, actual, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotNil asserts that the specified object is not nil.
-//
-//    assert.NotNil(t, err)
-func NotNil(t TestingT, object interface{}, msgAndArgs ...interface{}) {
-	if assert.NotNil(t, object, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotNilf asserts that the specified object is not nil.
-//
-//    assert.NotNilf(t, err, "error message %s", "formatted")
-func NotNilf(t TestingT, object interface{}, msg string, args ...interface{}) {
-	if assert.NotNilf(t, object, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotPanics asserts that the code inside the specified PanicTestFunc does NOT panic.
-//
-//   assert.NotPanics(t, func(){ RemainCalm() })
-func NotPanics(t TestingT, f assert.PanicTestFunc, msgAndArgs ...interface{}) {
-	if assert.NotPanics(t, f, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotPanicsf asserts that the code inside the specified PanicTestFunc does NOT panic.
-//
-//   assert.NotPanicsf(t, func(){ RemainCalm() }, "error message %s", "formatted")
-func NotPanicsf(t TestingT, f assert.PanicTestFunc, msg string, args ...interface{}) {
-	if assert.NotPanicsf(t, f, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotRegexp asserts that a specified regexp does not match a string.
-//
-//  assert.NotRegexp(t, regexp.MustCompile("starts"), "it's starting")
-//  assert.NotRegexp(t, "^start", "it's not starting")
-func NotRegexp(t TestingT, rx interface{}, str interface{}, msgAndArgs ...interface{}) {
-	if assert.NotRegexp(t, rx, str, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotRegexpf asserts that a specified regexp does not match a string.
-//
-//  assert.NotRegexpf(t, regexp.MustCompile("starts", "error message %s", "formatted"), "it's starting")
-//  assert.NotRegexpf(t, "^start", "it's not starting", "error message %s", "formatted")
-func NotRegexpf(t TestingT, rx interface{}, str interface{}, msg string, args ...interface{}) {
-	if assert.NotRegexpf(t, rx, str, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotSubset asserts that the specified list(array, slice...) contains not all
-// elements given in the specified subset(array, slice...).
-//
-//    assert.NotSubset(t, [1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]")
-func NotSubset(t TestingT, list interface{}, subset interface{}, msgAndArgs ...interface{}) {
-	if assert.NotSubset(t, list, subset, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotSubsetf asserts that the specified list(array, slice...) contains not all
-// elements given in the specified subset(array, slice...).
-//
-//    assert.NotSubsetf(t, [1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]", "error message %s", "formatted")
-func NotSubsetf(t TestingT, list interface{}, subset interface{}, msg string, args ...interface{}) {
-	if assert.NotSubsetf(t, list, subset, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotZero asserts that i is not the zero value for its type.
-func NotZero(t TestingT, i interface{}, msgAndArgs ...interface{}) {
-	if assert.NotZero(t, i, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// NotZerof asserts that i is not the zero value for its type.
-func NotZerof(t TestingT, i interface{}, msg string, args ...interface{}) {
-	if assert.NotZerof(t, i, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Panics asserts that the code inside the specified PanicTestFunc panics.
-//
-//   assert.Panics(t, func(){ GoCrazy() })
-func Panics(t TestingT, f assert.PanicTestFunc, msgAndArgs ...interface{}) {
-	if assert.Panics(t, f, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// PanicsWithValue asserts that the code inside the specified PanicTestFunc panics, and that
-// the recovered panic value equals the expected panic value.
-//
-//   assert.PanicsWithValue(t, "crazy error", func(){ GoCrazy() })
-func PanicsWithValue(t TestingT, expected interface{}, f assert.PanicTestFunc, msgAndArgs ...interface{}) {
-	if assert.PanicsWithValue(t, expected, f, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// PanicsWithValuef asserts that the code inside the specified PanicTestFunc panics, and that
-// the recovered panic value equals the expected panic value.
-//
-//   assert.PanicsWithValuef(t, "crazy error", func(){ GoCrazy() }, "error message %s", "formatted")
-func PanicsWithValuef(t TestingT, expected interface{}, f assert.PanicTestFunc, msg string, args ...interface{}) {
-	if assert.PanicsWithValuef(t, expected, f, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Panicsf asserts that the code inside the specified PanicTestFunc panics.
-//
-//   assert.Panicsf(t, func(){ GoCrazy() }, "error message %s", "formatted")
-func Panicsf(t TestingT, f assert.PanicTestFunc, msg string, args ...interface{}) {
-	if assert.Panicsf(t, f, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Regexp asserts that a specified regexp matches a string.
-//
-//  assert.Regexp(t, regexp.MustCompile("start"), "it's starting")
-//  assert.Regexp(t, "start...$", "it's not starting")
-func Regexp(t TestingT, rx interface{}, str interface{}, msgAndArgs ...interface{}) {
-	if assert.Regexp(t, rx, str, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Regexpf asserts that a specified regexp matches a string.
-//
-//  assert.Regexpf(t, regexp.MustCompile("start", "error message %s", "formatted"), "it's starting")
-//  assert.Regexpf(t, "start...$", "it's not starting", "error message %s", "formatted")
-func Regexpf(t TestingT, rx interface{}, str interface{}, msg string, args ...interface{}) {
-	if assert.Regexpf(t, rx, str, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Subset asserts that the specified list(array, slice...) contains all
-// elements given in the specified subset(array, slice...).
-//
-//    assert.Subset(t, [1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]")
-func Subset(t TestingT, list interface{}, subset interface{}, msgAndArgs ...interface{}) {
-	if assert.Subset(t, list, subset, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Subsetf asserts that the specified list(array, slice...) contains all
-// elements given in the specified subset(array, slice...).
-//
-//    assert.Subsetf(t, [1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]", "error message %s", "formatted")
-func Subsetf(t TestingT, list interface{}, subset interface{}, msg string, args ...interface{}) {
-	if assert.Subsetf(t, list, subset, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// True asserts that the specified value is true.
-//
-//    assert.True(t, myBool)
-func True(t TestingT, value bool, msgAndArgs ...interface{}) {
-	if assert.True(t, value, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Truef asserts that the specified value is true.
-//
-//    assert.Truef(t, myBool, "error message %s", "formatted")
-func Truef(t TestingT, value bool, msg string, args ...interface{}) {
-	if assert.Truef(t, value, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// WithinDuration asserts that the two times are within duration delta of each other.
-//
-//   assert.WithinDuration(t, time.Now(), time.Now(), 10*time.Second)
-func WithinDuration(t TestingT, expected time.Time, actual time.Time, delta time.Duration, msgAndArgs ...interface{}) {
-	if assert.WithinDuration(t, expected, actual, delta, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// WithinDurationf asserts that the two times are within duration delta of each other.
-//
-//   assert.WithinDurationf(t, time.Now(), time.Now(), 10*time.Second, "error message %s", "formatted")
-func WithinDurationf(t TestingT, expected time.Time, actual time.Time, delta time.Duration, msg string, args ...interface{}) {
-	if assert.WithinDurationf(t, expected, actual, delta, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Zero asserts that i is the zero value for its type.
-func Zero(t TestingT, i interface{}, msgAndArgs ...interface{}) {
-	if assert.Zero(t, i, msgAndArgs...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}
-
-// Zerof asserts that i is the zero value for its type.
-func Zerof(t TestingT, i interface{}, msg string, args ...interface{}) {
-	if assert.Zerof(t, i, msg, args...) {
-		return
-	}
-	if h, ok := t.(tHelper); ok {
-		h.Helper()
-	}
-	t.FailNow()
-}

libnetwork/vendor/github.com/stretchr/testify/require/require_forward.go

@@ -1,957 +0,0 @@
-/*
-* CODE GENERATED AUTOMATICALLY WITH github.com/stretchr/testify/_codegen
-* THIS FILE MUST NOT BE EDITED BY HAND
- */
-
-package require
-
-import (
-	assert "github.com/stretchr/testify/assert"
-	http "net/http"
-	url "net/url"
-	time "time"
-)
-
-// Condition uses a Comparison to assert a complex condition.
-func (a *Assertions) Condition(comp assert.Comparison, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Condition(a.t, comp, msgAndArgs...)
-}
-
-// Conditionf uses a Comparison to assert a complex condition.
-func (a *Assertions) Conditionf(comp assert.Comparison, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Conditionf(a.t, comp, msg, args...)
-}
-
-// Contains asserts that the specified string, list(array, slice...) or map contains the
-// specified substring or element.
-//
-//    a.Contains("Hello World", "World")
-//    a.Contains(["Hello", "World"], "World")
-//    a.Contains({"Hello": "World"}, "Hello")
-func (a *Assertions) Contains(s interface{}, contains interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Contains(a.t, s, contains, msgAndArgs...)
-}
-
-// Containsf asserts that the specified string, list(array, slice...) or map contains the
-// specified substring or element.
-//
-//    a.Containsf("Hello World", "World", "error message %s", "formatted")
-//    a.Containsf(["Hello", "World"], "World", "error message %s", "formatted")
-//    a.Containsf({"Hello": "World"}, "Hello", "error message %s", "formatted")
-func (a *Assertions) Containsf(s interface{}, contains interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Containsf(a.t, s, contains, msg, args...)
-}
-
-// DirExists checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
-func (a *Assertions) DirExists(path string, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	DirExists(a.t, path, msgAndArgs...)
-}
-
-// DirExistsf checks whether a directory exists in the given path. It also fails if the path is a file rather a directory or there is an error checking whether it exists.
-func (a *Assertions) DirExistsf(path string, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	DirExistsf(a.t, path, msg, args...)
-}
-
-// ElementsMatch asserts that the specified listA(array, slice...) is equal to specified
-// listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
-// the number of appearances of each of them in both lists should match.
-//
-// a.ElementsMatch([1, 3, 2, 3], [1, 3, 3, 2])
-func (a *Assertions) ElementsMatch(listA interface{}, listB interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	ElementsMatch(a.t, listA, listB, msgAndArgs...)
-}
-
-// ElementsMatchf asserts that the specified listA(array, slice...) is equal to specified
-// listB(array, slice...) ignoring the order of the elements. If there are duplicate elements,
-// the number of appearances of each of them in both lists should match.
-//
-// a.ElementsMatchf([1, 3, 2, 3], [1, 3, 3, 2], "error message %s", "formatted")
-func (a *Assertions) ElementsMatchf(listA interface{}, listB interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	ElementsMatchf(a.t, listA, listB, msg, args...)
-}
-
-// Empty asserts that the specified object is empty.  I.e. nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  a.Empty(obj)
-func (a *Assertions) Empty(object interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Empty(a.t, object, msgAndArgs...)
-}
-
-// Emptyf asserts that the specified object is empty.  I.e. nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  a.Emptyf(obj, "error message %s", "formatted")
-func (a *Assertions) Emptyf(object interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Emptyf(a.t, object, msg, args...)
-}
-
-// Equal asserts that two objects are equal.
-//
-//    a.Equal(123, 123)
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses). Function equality
-// cannot be determined and will always fail.
-func (a *Assertions) Equal(expected interface{}, actual interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Equal(a.t, expected, actual, msgAndArgs...)
-}
-
-// EqualError asserts that a function returned an error (i.e. not `nil`)
-// and that it is equal to the provided error.
-//
-//   actualObj, err := SomeFunction()
-//   a.EqualError(err,  expectedErrorString)
-func (a *Assertions) EqualError(theError error, errString string, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	EqualError(a.t, theError, errString, msgAndArgs...)
-}
-
-// EqualErrorf asserts that a function returned an error (i.e. not `nil`)
-// and that it is equal to the provided error.
-//
-//   actualObj, err := SomeFunction()
-//   a.EqualErrorf(err,  expectedErrorString, "error message %s", "formatted")
-func (a *Assertions) EqualErrorf(theError error, errString string, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	EqualErrorf(a.t, theError, errString, msg, args...)
-}
-
-// EqualValues asserts that two objects are equal or convertable to the same types
-// and equal.
-//
-//    a.EqualValues(uint32(123), int32(123))
-func (a *Assertions) EqualValues(expected interface{}, actual interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	EqualValues(a.t, expected, actual, msgAndArgs...)
-}
-
-// EqualValuesf asserts that two objects are equal or convertable to the same types
-// and equal.
-//
-//    a.EqualValuesf(uint32(123, "error message %s", "formatted"), int32(123))
-func (a *Assertions) EqualValuesf(expected interface{}, actual interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	EqualValuesf(a.t, expected, actual, msg, args...)
-}
-
-// Equalf asserts that two objects are equal.
-//
-//    a.Equalf(123, 123, "error message %s", "formatted")
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses). Function equality
-// cannot be determined and will always fail.
-func (a *Assertions) Equalf(expected interface{}, actual interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Equalf(a.t, expected, actual, msg, args...)
-}
-
-// Error asserts that a function returned an error (i.e. not `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if a.Error(err) {
-// 	   assert.Equal(t, expectedError, err)
-//   }
-func (a *Assertions) Error(err error, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Error(a.t, err, msgAndArgs...)
-}
-
-// Errorf asserts that a function returned an error (i.e. not `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if a.Errorf(err, "error message %s", "formatted") {
-// 	   assert.Equal(t, expectedErrorf, err)
-//   }
-func (a *Assertions) Errorf(err error, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Errorf(a.t, err, msg, args...)
-}
-
-// Exactly asserts that two objects are equal in value and type.
-//
-//    a.Exactly(int32(123), int64(123))
-func (a *Assertions) Exactly(expected interface{}, actual interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Exactly(a.t, expected, actual, msgAndArgs...)
-}
-
-// Exactlyf asserts that two objects are equal in value and type.
-//
-//    a.Exactlyf(int32(123, "error message %s", "formatted"), int64(123))
-func (a *Assertions) Exactlyf(expected interface{}, actual interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Exactlyf(a.t, expected, actual, msg, args...)
-}
-
-// Fail reports a failure through
-func (a *Assertions) Fail(failureMessage string, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Fail(a.t, failureMessage, msgAndArgs...)
-}
-
-// FailNow fails test
-func (a *Assertions) FailNow(failureMessage string, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	FailNow(a.t, failureMessage, msgAndArgs...)
-}
-
-// FailNowf fails test
-func (a *Assertions) FailNowf(failureMessage string, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	FailNowf(a.t, failureMessage, msg, args...)
-}
-
-// Failf reports a failure through
-func (a *Assertions) Failf(failureMessage string, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Failf(a.t, failureMessage, msg, args...)
-}
-
-// False asserts that the specified value is false.
-//
-//    a.False(myBool)
-func (a *Assertions) False(value bool, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	False(a.t, value, msgAndArgs...)
-}
-
-// Falsef asserts that the specified value is false.
-//
-//    a.Falsef(myBool, "error message %s", "formatted")
-func (a *Assertions) Falsef(value bool, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Falsef(a.t, value, msg, args...)
-}
-
-// FileExists checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
-func (a *Assertions) FileExists(path string, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	FileExists(a.t, path, msgAndArgs...)
-}
-
-// FileExistsf checks whether a file exists in the given path. It also fails if the path points to a directory or there is an error when trying to check the file.
-func (a *Assertions) FileExistsf(path string, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	FileExistsf(a.t, path, msg, args...)
-}
-
-// HTTPBodyContains asserts that a specified handler returns a
-// body that contains a string.
-//
-//  a.HTTPBodyContains(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPBodyContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	HTTPBodyContains(a.t, handler, method, url, values, str, msgAndArgs...)
-}
-
-// HTTPBodyContainsf asserts that a specified handler returns a
-// body that contains a string.
-//
-//  a.HTTPBodyContainsf(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPBodyContainsf(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	HTTPBodyContainsf(a.t, handler, method, url, values, str, msg, args...)
-}
-
-// HTTPBodyNotContains asserts that a specified handler returns a
-// body that does not contain a string.
-//
-//  a.HTTPBodyNotContains(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPBodyNotContains(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	HTTPBodyNotContains(a.t, handler, method, url, values, str, msgAndArgs...)
-}
-
-// HTTPBodyNotContainsf asserts that a specified handler returns a
-// body that does not contain a string.
-//
-//  a.HTTPBodyNotContainsf(myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPBodyNotContainsf(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	HTTPBodyNotContainsf(a.t, handler, method, url, values, str, msg, args...)
-}
-
-// HTTPError asserts that a specified handler returns an error status code.
-//
-//  a.HTTPError(myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPError(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	HTTPError(a.t, handler, method, url, values, msgAndArgs...)
-}
-
-// HTTPErrorf asserts that a specified handler returns an error status code.
-//
-//  a.HTTPErrorf(myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
-func (a *Assertions) HTTPErrorf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	HTTPErrorf(a.t, handler, method, url, values, msg, args...)
-}
-
-// HTTPRedirect asserts that a specified handler returns a redirect status code.
-//
-//  a.HTTPRedirect(myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPRedirect(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	HTTPRedirect(a.t, handler, method, url, values, msgAndArgs...)
-}
-
-// HTTPRedirectf asserts that a specified handler returns a redirect status code.
-//
-//  a.HTTPRedirectf(myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
-//
-// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
-func (a *Assertions) HTTPRedirectf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	HTTPRedirectf(a.t, handler, method, url, values, msg, args...)
-}
-
-// HTTPSuccess asserts that a specified handler returns a success status code.
-//
-//  a.HTTPSuccess(myHandler, "POST", "http://www.google.com", nil)
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPSuccess(handler http.HandlerFunc, method string, url string, values url.Values, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	HTTPSuccess(a.t, handler, method, url, values, msgAndArgs...)
-}
-
-// HTTPSuccessf asserts that a specified handler returns a success status code.
-//
-//  a.HTTPSuccessf(myHandler, "POST", "http://www.google.com", nil, "error message %s", "formatted")
-//
-// Returns whether the assertion was successful (true) or not (false).
-func (a *Assertions) HTTPSuccessf(handler http.HandlerFunc, method string, url string, values url.Values, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	HTTPSuccessf(a.t, handler, method, url, values, msg, args...)
-}
-
-// Implements asserts that an object is implemented by the specified interface.
-//
-//    a.Implements((*MyInterface)(nil), new(MyObject))
-func (a *Assertions) Implements(interfaceObject interface{}, object interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Implements(a.t, interfaceObject, object, msgAndArgs...)
-}
-
-// Implementsf asserts that an object is implemented by the specified interface.
-//
-//    a.Implementsf((*MyInterface, "error message %s", "formatted")(nil), new(MyObject))
-func (a *Assertions) Implementsf(interfaceObject interface{}, object interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Implementsf(a.t, interfaceObject, object, msg, args...)
-}
-
-// InDelta asserts that the two numerals are within delta of each other.
-//
-// 	 a.InDelta(math.Pi, (22 / 7.0), 0.01)
-func (a *Assertions) InDelta(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	InDelta(a.t, expected, actual, delta, msgAndArgs...)
-}
-
-// InDeltaMapValues is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
-func (a *Assertions) InDeltaMapValues(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	InDeltaMapValues(a.t, expected, actual, delta, msgAndArgs...)
-}
-
-// InDeltaMapValuesf is the same as InDelta, but it compares all values between two maps. Both maps must have exactly the same keys.
-func (a *Assertions) InDeltaMapValuesf(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	InDeltaMapValuesf(a.t, expected, actual, delta, msg, args...)
-}
-
-// InDeltaSlice is the same as InDelta, except it compares two slices.
-func (a *Assertions) InDeltaSlice(expected interface{}, actual interface{}, delta float64, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	InDeltaSlice(a.t, expected, actual, delta, msgAndArgs...)
-}
-
-// InDeltaSlicef is the same as InDelta, except it compares two slices.
-func (a *Assertions) InDeltaSlicef(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	InDeltaSlicef(a.t, expected, actual, delta, msg, args...)
-}
-
-// InDeltaf asserts that the two numerals are within delta of each other.
-//
-// 	 a.InDeltaf(math.Pi, (22 / 7.0, "error message %s", "formatted"), 0.01)
-func (a *Assertions) InDeltaf(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	InDeltaf(a.t, expected, actual, delta, msg, args...)
-}
-
-// InEpsilon asserts that expected and actual have a relative error less than epsilon
-func (a *Assertions) InEpsilon(expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	InEpsilon(a.t, expected, actual, epsilon, msgAndArgs...)
-}
-
-// InEpsilonSlice is the same as InEpsilon, except it compares each value from two slices.
-func (a *Assertions) InEpsilonSlice(expected interface{}, actual interface{}, epsilon float64, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	InEpsilonSlice(a.t, expected, actual, epsilon, msgAndArgs...)
-}
-
-// InEpsilonSlicef is the same as InEpsilon, except it compares each value from two slices.
-func (a *Assertions) InEpsilonSlicef(expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	InEpsilonSlicef(a.t, expected, actual, epsilon, msg, args...)
-}
-
-// InEpsilonf asserts that expected and actual have a relative error less than epsilon
-func (a *Assertions) InEpsilonf(expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	InEpsilonf(a.t, expected, actual, epsilon, msg, args...)
-}
-
-// IsType asserts that the specified objects are of the same type.
-func (a *Assertions) IsType(expectedType interface{}, object interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	IsType(a.t, expectedType, object, msgAndArgs...)
-}
-
-// IsTypef asserts that the specified objects are of the same type.
-func (a *Assertions) IsTypef(expectedType interface{}, object interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	IsTypef(a.t, expectedType, object, msg, args...)
-}
-
-// JSONEq asserts that two JSON strings are equivalent.
-//
-//  a.JSONEq(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`)
-func (a *Assertions) JSONEq(expected string, actual string, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	JSONEq(a.t, expected, actual, msgAndArgs...)
-}
-
-// JSONEqf asserts that two JSON strings are equivalent.
-//
-//  a.JSONEqf(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`, "error message %s", "formatted")
-func (a *Assertions) JSONEqf(expected string, actual string, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	JSONEqf(a.t, expected, actual, msg, args...)
-}
-
-// Len asserts that the specified object has specific length.
-// Len also fails if the object has a type that len() not accept.
-//
-//    a.Len(mySlice, 3)
-func (a *Assertions) Len(object interface{}, length int, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Len(a.t, object, length, msgAndArgs...)
-}
-
-// Lenf asserts that the specified object has specific length.
-// Lenf also fails if the object has a type that len() not accept.
-//
-//    a.Lenf(mySlice, 3, "error message %s", "formatted")
-func (a *Assertions) Lenf(object interface{}, length int, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Lenf(a.t, object, length, msg, args...)
-}
-
-// Nil asserts that the specified object is nil.
-//
-//    a.Nil(err)
-func (a *Assertions) Nil(object interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Nil(a.t, object, msgAndArgs...)
-}
-
-// Nilf asserts that the specified object is nil.
-//
-//    a.Nilf(err, "error message %s", "formatted")
-func (a *Assertions) Nilf(object interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Nilf(a.t, object, msg, args...)
-}
-
-// NoError asserts that a function returned no error (i.e. `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if a.NoError(err) {
-// 	   assert.Equal(t, expectedObj, actualObj)
-//   }
-func (a *Assertions) NoError(err error, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NoError(a.t, err, msgAndArgs...)
-}
-
-// NoErrorf asserts that a function returned no error (i.e. `nil`).
-//
-//   actualObj, err := SomeFunction()
-//   if a.NoErrorf(err, "error message %s", "formatted") {
-// 	   assert.Equal(t, expectedObj, actualObj)
-//   }
-func (a *Assertions) NoErrorf(err error, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NoErrorf(a.t, err, msg, args...)
-}
-
-// NotContains asserts that the specified string, list(array, slice...) or map does NOT contain the
-// specified substring or element.
-//
-//    a.NotContains("Hello World", "Earth")
-//    a.NotContains(["Hello", "World"], "Earth")
-//    a.NotContains({"Hello": "World"}, "Earth")
-func (a *Assertions) NotContains(s interface{}, contains interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotContains(a.t, s, contains, msgAndArgs...)
-}
-
-// NotContainsf asserts that the specified string, list(array, slice...) or map does NOT contain the
-// specified substring or element.
-//
-//    a.NotContainsf("Hello World", "Earth", "error message %s", "formatted")
-//    a.NotContainsf(["Hello", "World"], "Earth", "error message %s", "formatted")
-//    a.NotContainsf({"Hello": "World"}, "Earth", "error message %s", "formatted")
-func (a *Assertions) NotContainsf(s interface{}, contains interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotContainsf(a.t, s, contains, msg, args...)
-}
-
-// NotEmpty asserts that the specified object is NOT empty.  I.e. not nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  if a.NotEmpty(obj) {
-//    assert.Equal(t, "two", obj[1])
-//  }
-func (a *Assertions) NotEmpty(object interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotEmpty(a.t, object, msgAndArgs...)
-}
-
-// NotEmptyf asserts that the specified object is NOT empty.  I.e. not nil, "", false, 0 or either
-// a slice or a channel with len == 0.
-//
-//  if a.NotEmptyf(obj, "error message %s", "formatted") {
-//    assert.Equal(t, "two", obj[1])
-//  }
-func (a *Assertions) NotEmptyf(object interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotEmptyf(a.t, object, msg, args...)
-}
-
-// NotEqual asserts that the specified values are NOT equal.
-//
-//    a.NotEqual(obj1, obj2)
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses).
-func (a *Assertions) NotEqual(expected interface{}, actual interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotEqual(a.t, expected, actual, msgAndArgs...)
-}
-
-// NotEqualf asserts that the specified values are NOT equal.
-//
-//    a.NotEqualf(obj1, obj2, "error message %s", "formatted")
-//
-// Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses).
-func (a *Assertions) NotEqualf(expected interface{}, actual interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotEqualf(a.t, expected, actual, msg, args...)
-}
-
-// NotNil asserts that the specified object is not nil.
-//
-//    a.NotNil(err)
-func (a *Assertions) NotNil(object interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotNil(a.t, object, msgAndArgs...)
-}
-
-// NotNilf asserts that the specified object is not nil.
-//
-//    a.NotNilf(err, "error message %s", "formatted")
-func (a *Assertions) NotNilf(object interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotNilf(a.t, object, msg, args...)
-}
-
-// NotPanics asserts that the code inside the specified PanicTestFunc does NOT panic.
-//
-//   a.NotPanics(func(){ RemainCalm() })
-func (a *Assertions) NotPanics(f assert.PanicTestFunc, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotPanics(a.t, f, msgAndArgs...)
-}
-
-// NotPanicsf asserts that the code inside the specified PanicTestFunc does NOT panic.
-//
-//   a.NotPanicsf(func(){ RemainCalm() }, "error message %s", "formatted")
-func (a *Assertions) NotPanicsf(f assert.PanicTestFunc, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotPanicsf(a.t, f, msg, args...)
-}
-
-// NotRegexp asserts that a specified regexp does not match a string.
-//
-//  a.NotRegexp(regexp.MustCompile("starts"), "it's starting")
-//  a.NotRegexp("^start", "it's not starting")
-func (a *Assertions) NotRegexp(rx interface{}, str interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotRegexp(a.t, rx, str, msgAndArgs...)
-}
-
-// NotRegexpf asserts that a specified regexp does not match a string.
-//
-//  a.NotRegexpf(regexp.MustCompile("starts", "error message %s", "formatted"), "it's starting")
-//  a.NotRegexpf("^start", "it's not starting", "error message %s", "formatted")
-func (a *Assertions) NotRegexpf(rx interface{}, str interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotRegexpf(a.t, rx, str, msg, args...)
-}
-
-// NotSubset asserts that the specified list(array, slice...) contains not all
-// elements given in the specified subset(array, slice...).
-//
-//    a.NotSubset([1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]")
-func (a *Assertions) NotSubset(list interface{}, subset interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotSubset(a.t, list, subset, msgAndArgs...)
-}
-
-// NotSubsetf asserts that the specified list(array, slice...) contains not all
-// elements given in the specified subset(array, slice...).
-//
-//    a.NotSubsetf([1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]", "error message %s", "formatted")
-func (a *Assertions) NotSubsetf(list interface{}, subset interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotSubsetf(a.t, list, subset, msg, args...)
-}
-
-// NotZero asserts that i is not the zero value for its type.
-func (a *Assertions) NotZero(i interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotZero(a.t, i, msgAndArgs...)
-}
-
-// NotZerof asserts that i is not the zero value for its type.
-func (a *Assertions) NotZerof(i interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	NotZerof(a.t, i, msg, args...)
-}
-
-// Panics asserts that the code inside the specified PanicTestFunc panics.
-//
-//   a.Panics(func(){ GoCrazy() })
-func (a *Assertions) Panics(f assert.PanicTestFunc, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Panics(a.t, f, msgAndArgs...)
-}
-
-// PanicsWithValue asserts that the code inside the specified PanicTestFunc panics, and that
-// the recovered panic value equals the expected panic value.
-//
-//   a.PanicsWithValue("crazy error", func(){ GoCrazy() })
-func (a *Assertions) PanicsWithValue(expected interface{}, f assert.PanicTestFunc, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	PanicsWithValue(a.t, expected, f, msgAndArgs...)
-}
-
-// PanicsWithValuef asserts that the code inside the specified PanicTestFunc panics, and that
-// the recovered panic value equals the expected panic value.
-//
-//   a.PanicsWithValuef("crazy error", func(){ GoCrazy() }, "error message %s", "formatted")
-func (a *Assertions) PanicsWithValuef(expected interface{}, f assert.PanicTestFunc, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	PanicsWithValuef(a.t, expected, f, msg, args...)
-}
-
-// Panicsf asserts that the code inside the specified PanicTestFunc panics.
-//
-//   a.Panicsf(func(){ GoCrazy() }, "error message %s", "formatted")
-func (a *Assertions) Panicsf(f assert.PanicTestFunc, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Panicsf(a.t, f, msg, args...)
-}
-
-// Regexp asserts that a specified regexp matches a string.
-//
-//  a.Regexp(regexp.MustCompile("start"), "it's starting")
-//  a.Regexp("start...$", "it's not starting")
-func (a *Assertions) Regexp(rx interface{}, str interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Regexp(a.t, rx, str, msgAndArgs...)
-}
-
-// Regexpf asserts that a specified regexp matches a string.
-//
-//  a.Regexpf(regexp.MustCompile("start", "error message %s", "formatted"), "it's starting")
-//  a.Regexpf("start...$", "it's not starting", "error message %s", "formatted")
-func (a *Assertions) Regexpf(rx interface{}, str interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Regexpf(a.t, rx, str, msg, args...)
-}
-
-// Subset asserts that the specified list(array, slice...) contains all
-// elements given in the specified subset(array, slice...).
-//
-//    a.Subset([1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]")
-func (a *Assertions) Subset(list interface{}, subset interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Subset(a.t, list, subset, msgAndArgs...)
-}
-
-// Subsetf asserts that the specified list(array, slice...) contains all
-// elements given in the specified subset(array, slice...).
-//
-//    a.Subsetf([1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]", "error message %s", "formatted")
-func (a *Assertions) Subsetf(list interface{}, subset interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Subsetf(a.t, list, subset, msg, args...)
-}
-
-// True asserts that the specified value is true.
-//
-//    a.True(myBool)
-func (a *Assertions) True(value bool, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	True(a.t, value, msgAndArgs...)
-}
-
-// Truef asserts that the specified value is true.
-//
-//    a.Truef(myBool, "error message %s", "formatted")
-func (a *Assertions) Truef(value bool, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Truef(a.t, value, msg, args...)
-}
-
-// WithinDuration asserts that the two times are within duration delta of each other.
-//
-//   a.WithinDuration(time.Now(), time.Now(), 10*time.Second)
-func (a *Assertions) WithinDuration(expected time.Time, actual time.Time, delta time.Duration, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	WithinDuration(a.t, expected, actual, delta, msgAndArgs...)
-}
-
-// WithinDurationf asserts that the two times are within duration delta of each other.
-//
-//   a.WithinDurationf(time.Now(), time.Now(), 10*time.Second, "error message %s", "formatted")
-func (a *Assertions) WithinDurationf(expected time.Time, actual time.Time, delta time.Duration, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	WithinDurationf(a.t, expected, actual, delta, msg, args...)
-}
-
-// Zero asserts that i is the zero value for its type.
-func (a *Assertions) Zero(i interface{}, msgAndArgs ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Zero(a.t, i, msgAndArgs...)
-}
-
-// Zerof asserts that i is the zero value for its type.
-func (a *Assertions) Zerof(i interface{}, msg string, args ...interface{}) {
-	if h, ok := a.t.(tHelper); ok {
-		h.Helper()
-	}
-	Zerof(a.t, i, msg, args...)
-}

libnetwork/vendor/github.com/stretchr/testify/require/requirements.go

@@ -1,29 +0,0 @@
-package require
-
-// TestingT is an interface wrapper around *testing.T
-type TestingT interface {
-	Errorf(format string, args ...interface{})
-	FailNow()
-}
-
-type tHelper interface {
-	Helper()
-}
-
-// ComparisonAssertionFunc is a common function prototype when comparing two values.  Can be useful
-// for table driven tests.
-type ComparisonAssertionFunc func(TestingT, interface{}, interface{}, ...interface{})
-
-// ValueAssertionFunc is a common function prototype when validating a single value.  Can be useful
-// for table driven tests.
-type ValueAssertionFunc func(TestingT, interface{}, ...interface{})
-
-// BoolAssertionFunc is a common function prototype when validating a bool value.  Can be useful
-// for table driven tests.
-type BoolAssertionFunc func(TestingT, bool, ...interface{})
-
-// ValuesAssertionFunc is a common function prototype when validating an error value.  Can be useful
-// for table driven tests.
-type ErrorAssertionFunc func(TestingT, error, ...interface{})
-
-//go:generate go run ../_codegen/main.go -output-package=require -template=require.go.tmpl -include-format-funcs

libnetwork/vendor/gotest.tools/LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
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+      and distribution as defined by Sections 1 through 9 of this document.
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+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
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+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
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+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
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+   6. Trademarks. This License does not grant permission to use the trade
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+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
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+      Work (including but not limited to damages for loss of goodwill,
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+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
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+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
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+
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+
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+      boilerplate notice, with the fields enclosed by brackets "[]"
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+   Copyright [yyyy] [name of copyright owner]
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+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

libnetwork/vendor/gotest.tools/README.md

@@ -0,0 +1,31 @@
+# gotest.tools
+
+A collection of packages to augment `testing` and support common patterns.
+
+[![GoDoc](https://godoc.org/gotest.tools?status.svg)](https://godoc.org/gotest.tools)
+[![CircleCI](https://circleci.com/gh/gotestyourself/gotestyourself/tree/master.svg?style=shield)](https://circleci.com/gh/gotestyourself/gotestyourself/tree/master)
+[![Go Reportcard](https://goreportcard.com/badge/gotest.tools)](https://goreportcard.com/report/gotest.tools)
+
+
+## Packages
+
+* [assert](http://godoc.org/gotest.tools/assert) -
+  compare values and fail the test when a comparison fails
+* [env](http://godoc.org/gotest.tools/env) -
+  test code which uses environment variables
+* [fs](http://godoc.org/gotest.tools/fs) -
+  create temporary files and compare a filesystem tree to an expected value
+* [golden](http://godoc.org/gotest.tools/golden) -
+  compare large multi-line strings against values frozen in golden files
+* [icmd](http://godoc.org/gotest.tools/icmd) -
+  execute binaries and test the output
+* [poll](http://godoc.org/gotest.tools/poll) -
+  test asynchronous code by polling until a desired state is reached
+* [skip](http://godoc.org/gotest.tools/skip) -
+  skip a test and print the source code of the condition used to skip the test
+
+## Related
+
+* [gotest.tools/gotestsum](https://github.com/gotestyourself/gotestsum) - go test runner with custom output
+* [maxbrunsfeld/counterfeiter](https://github.com/maxbrunsfeld/counterfeiter) - generate fakes for interfaces
+* [jonboulle/clockwork](https://github.com/jonboulle/clockwork) - a fake clock for testing code that uses `time`

libnetwork/vendor/gotest.tools/assert/assert.go

@@ -0,0 +1,311 @@
+/*Package assert provides assertions for comparing expected values to actual
+values. When an assertion fails a helpful error message is printed.
+
+Assert and Check
+
+Assert() and Check() both accept a Comparison, and fail the test when the
+comparison fails. The one difference is that Assert() will end the test execution
+immediately (using t.FailNow()) whereas Check() will fail the test (using t.Fail()),
+return the value of the comparison, then proceed with the rest of the test case.
+
+Example usage
+
+The example below shows assert used with some common types.
+
+
+	import (
+	    "testing"
+
+	    "gotest.tools/assert"
+	    is "gotest.tools/assert/cmp"
+	)
+
+	func TestEverything(t *testing.T) {
+	    // booleans
+	    assert.Assert(t, ok)
+	    assert.Assert(t, !missing)
+
+	    // primitives
+	    assert.Equal(t, count, 1)
+	    assert.Equal(t, msg, "the message")
+	    assert.Assert(t, total != 10) // NotEqual
+
+	    // errors
+	    assert.NilError(t, closer.Close())
+	    assert.Error(t, err, "the exact error message")
+	    assert.ErrorContains(t, err, "includes this")
+	    assert.ErrorType(t, err, os.IsNotExist)
+
+	    // complex types
+	    assert.DeepEqual(t, result, myStruct{Name: "title"})
+	    assert.Assert(t, is.Len(items, 3))
+	    assert.Assert(t, len(sequence) != 0) // NotEmpty
+	    assert.Assert(t, is.Contains(mapping, "key"))
+
+	    // pointers and interface
+	    assert.Assert(t, is.Nil(ref))
+	    assert.Assert(t, ref != nil) // NotNil
+	}
+
+Comparisons
+
+Package https://godoc.org/gotest.tools/assert/cmp provides
+many common comparisons. Additional comparisons can be written to compare
+values in other ways. See the example Assert (CustomComparison).
+
+Automated migration from testify
+
+gty-migrate-from-testify is a binary which can update source code which uses
+testify assertions to use the assertions provided by this package.
+
+See http://bit.do/cmd-gty-migrate-from-testify.
+
+
+*/
+package assert // import "gotest.tools/assert"
+
+import (
+	"fmt"
+	"go/ast"
+	"go/token"
+
+	gocmp "github.com/google/go-cmp/cmp"
+	"gotest.tools/assert/cmp"
+	"gotest.tools/internal/format"
+	"gotest.tools/internal/source"
+)
+
+// BoolOrComparison can be a bool, or cmp.Comparison. See Assert() for usage.
+type BoolOrComparison interface{}
+
+// TestingT is the subset of testing.T used by the assert package.
+type TestingT interface {
+	FailNow()
+	Fail()
+	Log(args ...interface{})
+}
+
+type helperT interface {
+	Helper()
+}
+
+const failureMessage = "assertion failed: "
+
+// nolint: gocyclo
+func assert(
+	t TestingT,
+	failer func(),
+	argSelector argSelector,
+	comparison BoolOrComparison,
+	msgAndArgs ...interface{},
+) bool {
+	if ht, ok := t.(helperT); ok {
+		ht.Helper()
+	}
+	var success bool
+	switch check := comparison.(type) {
+	case bool:
+		if check {
+			return true
+		}
+		logFailureFromBool(t, msgAndArgs...)
+
+	// Undocumented legacy comparison without Result type
+	case func() (success bool, message string):
+		success = runCompareFunc(t, check, msgAndArgs...)
+
+	case nil:
+		return true
+
+	case error:
+		msg := "error is not nil: "
+		t.Log(format.WithCustomMessage(failureMessage+msg+check.Error(), msgAndArgs...))
+
+	case cmp.Comparison:
+		success = runComparison(t, argSelector, check, msgAndArgs...)
+
+	case func() cmp.Result:
+		success = runComparison(t, argSelector, check, msgAndArgs...)
+
+	default:
+		t.Log(fmt.Sprintf("invalid Comparison: %v (%T)", check, check))
+	}
+
+	if success {
+		return true
+	}
+	failer()
+	return false
+}
+
+func runCompareFunc(
+	t TestingT,
+	f func() (success bool, message string),
+	msgAndArgs ...interface{},
+) bool {
+	if ht, ok := t.(helperT); ok {
+		ht.Helper()
+	}
+	if success, message := f(); !success {
+		t.Log(format.WithCustomMessage(failureMessage+message, msgAndArgs...))
+		return false
+	}
+	return true
+}
+
+func logFailureFromBool(t TestingT, msgAndArgs ...interface{}) {
+	if ht, ok := t.(helperT); ok {
+		ht.Helper()
+	}
+	const stackIndex = 3 // Assert()/Check(), assert(), formatFailureFromBool()
+	const comparisonArgPos = 1
+	args, err := source.CallExprArgs(stackIndex)
+	if err != nil {
+		t.Log(err.Error())
+		return
+	}
+
+	msg, err := boolFailureMessage(args[comparisonArgPos])
+	if err != nil {
+		t.Log(err.Error())
+		msg = "expression is false"
+	}
+
+	t.Log(format.WithCustomMessage(failureMessage+msg, msgAndArgs...))
+}
+
+func boolFailureMessage(expr ast.Expr) (string, error) {
+	if binaryExpr, ok := expr.(*ast.BinaryExpr); ok && binaryExpr.Op == token.NEQ {
+		x, err := source.FormatNode(binaryExpr.X)
+		if err != nil {
+			return "", err
+		}
+		y, err := source.FormatNode(binaryExpr.Y)
+		if err != nil {
+			return "", err
+		}
+		return x + " is " + y, nil
+	}
+
+	if unaryExpr, ok := expr.(*ast.UnaryExpr); ok && unaryExpr.Op == token.NOT {
+		x, err := source.FormatNode(unaryExpr.X)
+		if err != nil {
+			return "", err
+		}
+		return x + " is true", nil
+	}
+
+	formatted, err := source.FormatNode(expr)
+	if err != nil {
+		return "", err
+	}
+	return "expression is false: " + formatted, nil
+}
+
+// Assert performs a comparison. If the comparison fails the test is marked as
+// failed, a failure message is logged, and execution is stopped immediately.
+//
+// The comparison argument may be one of three types: bool, cmp.Comparison or
+// error.
+// When called with a bool the failure message will contain the literal source
+// code of the expression.
+// When called with a cmp.Comparison the comparison is responsible for producing
+// a helpful failure message.
+// When called with an error a nil value is considered success. A non-nil error
+// is a failure, and Error() is used as the failure message.
+func Assert(t TestingT, comparison BoolOrComparison, msgAndArgs ...interface{}) {
+	if ht, ok := t.(helperT); ok {
+		ht.Helper()
+	}
+	assert(t, t.FailNow, argsFromComparisonCall, comparison, msgAndArgs...)
+}
+
+// Check performs a comparison. If the comparison fails the test is marked as
+// failed, a failure message is logged, and Check returns false. Otherwise returns
+// true.
+//
+// See Assert for details about the comparison arg and failure messages.
+func Check(t TestingT, comparison BoolOrComparison, msgAndArgs ...interface{}) bool {
+	if ht, ok := t.(helperT); ok {
+		ht.Helper()
+	}
+	return assert(t, t.Fail, argsFromComparisonCall, comparison, msgAndArgs...)
+}
+
+// NilError fails the test immediately if err is not nil.
+// This is equivalent to Assert(t, err)
+func NilError(t TestingT, err error, msgAndArgs ...interface{}) {
+	if ht, ok := t.(helperT); ok {
+		ht.Helper()
+	}
+	assert(t, t.FailNow, argsAfterT, err, msgAndArgs...)
+}
+
+// Equal uses the == operator to assert two values are equal and fails the test
+// if they are not equal.
+//
+// If the comparison fails Equal will use the variable names for x and y as part
+// of the failure message to identify the actual and expected values.
+//
+// If either x or y are a multi-line string the failure message will include a
+// unified diff of the two values. If the values only differ by whitespace
+// the unified diff will be augmented by replacing whitespace characters with
+// visible characters to identify the whitespace difference.
+//
+// This is equivalent to Assert(t, cmp.Equal(x, y)).
+func Equal(t TestingT, x, y interface{}, msgAndArgs ...interface{}) {
+	if ht, ok := t.(helperT); ok {
+		ht.Helper()
+	}
+	assert(t, t.FailNow, argsAfterT, cmp.Equal(x, y), msgAndArgs...)
+}
+
+// DeepEqual uses google/go-cmp (http://bit.do/go-cmp) to assert two values are
+// equal and fails the test if they are not equal.
+//
+// Package https://godoc.org/gotest.tools/assert/opt provides some additional
+// commonly used Options.
+//
+// This is equivalent to Assert(t, cmp.DeepEqual(x, y)).
+func DeepEqual(t TestingT, x, y interface{}, opts ...gocmp.Option) {
+	if ht, ok := t.(helperT); ok {
+		ht.Helper()
+	}
+	assert(t, t.FailNow, argsAfterT, cmp.DeepEqual(x, y, opts...))
+}
+
+// Error fails the test if err is nil, or the error message is not the expected
+// message.
+// Equivalent to Assert(t, cmp.Error(err, message)).
+func Error(t TestingT, err error, message string, msgAndArgs ...interface{}) {
+	if ht, ok := t.(helperT); ok {
+		ht.Helper()
+	}
+	assert(t, t.FailNow, argsAfterT, cmp.Error(err, message), msgAndArgs...)
+}
+
+// ErrorContains fails the test if err is nil, or the error message does not
+// contain the expected substring.
+// Equivalent to Assert(t, cmp.ErrorContains(err, substring)).
+func ErrorContains(t TestingT, err error, substring string, msgAndArgs ...interface{}) {
+	if ht, ok := t.(helperT); ok {
+		ht.Helper()
+	}
+	assert(t, t.FailNow, argsAfterT, cmp.ErrorContains(err, substring), msgAndArgs...)
+}
+
+// ErrorType fails the test if err is nil, or err is not the expected type.
+//
+// Expected can be one of:
+// a func(error) bool which returns true if the error is the expected type,
+// an instance of (or a pointer to) a struct of the expected type,
+// a pointer to an interface the error is expected to implement,
+// a reflect.Type of the expected struct or interface.
+//
+// Equivalent to Assert(t, cmp.ErrorType(err, expected)).
+func ErrorType(t TestingT, err error, expected interface{}, msgAndArgs ...interface{}) {
+	if ht, ok := t.(helperT); ok {
+		ht.Helper()
+	}
+	assert(t, t.FailNow, argsAfterT, cmp.ErrorType(err, expected), msgAndArgs...)
+}

libnetwork/vendor/gotest.tools/assert/cmp/compare.go

@@ -0,0 +1,312 @@
+/*Package cmp provides Comparisons for Assert and Check*/
+package cmp // import "gotest.tools/assert/cmp"
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+
+	"github.com/google/go-cmp/cmp"
+	"gotest.tools/internal/format"
+)
+
+// Comparison is a function which compares values and returns ResultSuccess if
+// the actual value matches the expected value. If the values do not match the
+// Result will contain a message about why it failed.
+type Comparison func() Result
+
+// DeepEqual compares two values using google/go-cmp (http://bit.do/go-cmp)
+// and succeeds if the values are equal.
+//
+// The comparison can be customized using comparison Options.
+// Package https://godoc.org/gotest.tools/assert/opt provides some additional
+// commonly used Options.
+func DeepEqual(x, y interface{}, opts ...cmp.Option) Comparison {
+	return func() (result Result) {
+		defer func() {
+			if panicmsg, handled := handleCmpPanic(recover()); handled {
+				result = ResultFailure(panicmsg)
+			}
+		}()
+		diff := cmp.Diff(x, y, opts...)
+		if diff == "" {
+			return ResultSuccess
+		}
+		return multiLineDiffResult(diff)
+	}
+}
+
+func handleCmpPanic(r interface{}) (string, bool) {
+	if r == nil {
+		return "", false
+	}
+	panicmsg, ok := r.(string)
+	if !ok {
+		panic(r)
+	}
+	switch {
+	case strings.HasPrefix(panicmsg, "cannot handle unexported field"):
+		return panicmsg, true
+	}
+	panic(r)
+}
+
+func toResult(success bool, msg string) Result {
+	if success {
+		return ResultSuccess
+	}
+	return ResultFailure(msg)
+}
+
+// Equal succeeds if x == y. See assert.Equal for full documentation.
+func Equal(x, y interface{}) Comparison {
+	return func() Result {
+		switch {
+		case x == y:
+			return ResultSuccess
+		case isMultiLineStringCompare(x, y):
+			diff := format.UnifiedDiff(format.DiffConfig{A: x.(string), B: y.(string)})
+			return multiLineDiffResult(diff)
+		}
+		return ResultFailureTemplate(`
+			{{- .Data.x}} (
+				{{- with callArg 0 }}{{ formatNode . }} {{end -}}
+				{{- printf "%T" .Data.x -}}
+			) != {{ .Data.y}} (
+				{{- with callArg 1 }}{{ formatNode . }} {{end -}}
+				{{- printf "%T" .Data.y -}}
+			)`,
+			map[string]interface{}{"x": x, "y": y})
+	}
+}
+
+func isMultiLineStringCompare(x, y interface{}) bool {
+	strX, ok := x.(string)
+	if !ok {
+		return false
+	}
+	strY, ok := y.(string)
+	if !ok {
+		return false
+	}
+	return strings.Contains(strX, "\n") || strings.Contains(strY, "\n")
+}
+
+func multiLineDiffResult(diff string) Result {
+	return ResultFailureTemplate(`
+--- {{ with callArg 0 }}{{ formatNode . }}{{else}}←{{end}}
++++ {{ with callArg 1 }}{{ formatNode . }}{{else}}→{{end}}
+{{ .Data.diff }}`,
+		map[string]interface{}{"diff": diff})
+}
+
+// Len succeeds if the sequence has the expected length.
+func Len(seq interface{}, expected int) Comparison {
+	return func() (result Result) {
+		defer func() {
+			if e := recover(); e != nil {
+				result = ResultFailure(fmt.Sprintf("type %T does not have a length", seq))
+			}
+		}()
+		value := reflect.ValueOf(seq)
+		length := value.Len()
+		if length == expected {
+			return ResultSuccess
+		}
+		msg := fmt.Sprintf("expected %s (length %d) to have length %d", seq, length, expected)
+		return ResultFailure(msg)
+	}
+}
+
+// Contains succeeds if item is in collection. Collection may be a string, map,
+// slice, or array.
+//
+// If collection is a string, item must also be a string, and is compared using
+// strings.Contains().
+// If collection is a Map, contains will succeed if item is a key in the map.
+// If collection is a slice or array, item is compared to each item in the
+// sequence using reflect.DeepEqual().
+func Contains(collection interface{}, item interface{}) Comparison {
+	return func() Result {
+		colValue := reflect.ValueOf(collection)
+		if !colValue.IsValid() {
+			return ResultFailure(fmt.Sprintf("nil does not contain items"))
+		}
+		msg := fmt.Sprintf("%v does not contain %v", collection, item)
+
+		itemValue := reflect.ValueOf(item)
+		switch colValue.Type().Kind() {
+		case reflect.String:
+			if itemValue.Type().Kind() != reflect.String {
+				return ResultFailure("string may only contain strings")
+			}
+			return toResult(
+				strings.Contains(colValue.String(), itemValue.String()),
+				fmt.Sprintf("string %q does not contain %q", collection, item))
+
+		case reflect.Map:
+			if itemValue.Type() != colValue.Type().Key() {
+				return ResultFailure(fmt.Sprintf(
+					"%v can not contain a %v key", colValue.Type(), itemValue.Type()))
+			}
+			return toResult(colValue.MapIndex(itemValue).IsValid(), msg)
+
+		case reflect.Slice, reflect.Array:
+			for i := 0; i < colValue.Len(); i++ {
+				if reflect.DeepEqual(colValue.Index(i).Interface(), item) {
+					return ResultSuccess
+				}
+			}
+			return ResultFailure(msg)
+		default:
+			return ResultFailure(fmt.Sprintf("type %T does not contain items", collection))
+		}
+	}
+}
+
+// Panics succeeds if f() panics.
+func Panics(f func()) Comparison {
+	return func() (result Result) {
+		defer func() {
+			if err := recover(); err != nil {
+				result = ResultSuccess
+			}
+		}()
+		f()
+		return ResultFailure("did not panic")
+	}
+}
+
+// Error succeeds if err is a non-nil error, and the error message equals the
+// expected message.
+func Error(err error, message string) Comparison {
+	return func() Result {
+		switch {
+		case err == nil:
+			return ResultFailure("expected an error, got nil")
+		case err.Error() != message:
+			return ResultFailure(fmt.Sprintf(
+				"expected error %q, got %+v", message, err))
+		}
+		return ResultSuccess
+	}
+}
+
+// ErrorContains succeeds if err is a non-nil error, and the error message contains
+// the expected substring.
+func ErrorContains(err error, substring string) Comparison {
+	return func() Result {
+		switch {
+		case err == nil:
+			return ResultFailure("expected an error, got nil")
+		case !strings.Contains(err.Error(), substring):
+			return ResultFailure(fmt.Sprintf(
+				"expected error to contain %q, got %+v", substring, err))
+		}
+		return ResultSuccess
+	}
+}
+
+// Nil succeeds if obj is a nil interface, pointer, or function.
+//
+// Use NilError() for comparing errors. Use Len(obj, 0) for comparing slices,
+// maps, and channels.
+func Nil(obj interface{}) Comparison {
+	msgFunc := func(value reflect.Value) string {
+		return fmt.Sprintf("%v (type %s) is not nil", reflect.Indirect(value), value.Type())
+	}
+	return isNil(obj, msgFunc)
+}
+
+func isNil(obj interface{}, msgFunc func(reflect.Value) string) Comparison {
+	return func() Result {
+		if obj == nil {
+			return ResultSuccess
+		}
+		value := reflect.ValueOf(obj)
+		kind := value.Type().Kind()
+		if kind >= reflect.Chan && kind <= reflect.Slice {
+			if value.IsNil() {
+				return ResultSuccess
+			}
+			return ResultFailure(msgFunc(value))
+		}
+
+		return ResultFailure(fmt.Sprintf("%v (type %s) can not be nil", value, value.Type()))
+	}
+}
+
+// ErrorType succeeds if err is not nil and is of the expected type.
+//
+// Expected can be one of:
+// a func(error) bool which returns true if the error is the expected type,
+// an instance of (or a pointer to) a struct of the expected type,
+// a pointer to an interface the error is expected to implement,
+// a reflect.Type of the expected struct or interface.
+func ErrorType(err error, expected interface{}) Comparison {
+	return func() Result {
+		switch expectedType := expected.(type) {
+		case func(error) bool:
+			return cmpErrorTypeFunc(err, expectedType)
+		case reflect.Type:
+			if expectedType.Kind() == reflect.Interface {
+				return cmpErrorTypeImplementsType(err, expectedType)
+			}
+			return cmpErrorTypeEqualType(err, expectedType)
+		case nil:
+			return ResultFailure(fmt.Sprintf("invalid type for expected: nil"))
+		}
+
+		expectedType := reflect.TypeOf(expected)
+		switch {
+		case expectedType.Kind() == reflect.Struct, isPtrToStruct(expectedType):
+			return cmpErrorTypeEqualType(err, expectedType)
+		case isPtrToInterface(expectedType):
+			return cmpErrorTypeImplementsType(err, expectedType.Elem())
+		}
+		return ResultFailure(fmt.Sprintf("invalid type for expected: %T", expected))
+	}
+}
+
+func cmpErrorTypeFunc(err error, f func(error) bool) Result {
+	if f(err) {
+		return ResultSuccess
+	}
+	actual := "nil"
+	if err != nil {
+		actual = fmt.Sprintf("%s (%T)", err, err)
+	}
+	return ResultFailureTemplate(`error is {{ .Data.actual }}
+		{{- with callArg 1 }}, not {{ formatNode . }}{{end -}}`,
+		map[string]interface{}{"actual": actual})
+}
+
+func cmpErrorTypeEqualType(err error, expectedType reflect.Type) Result {
+	if err == nil {
+		return ResultFailure(fmt.Sprintf("error is nil, not %s", expectedType))
+	}
+	errValue := reflect.ValueOf(err)
+	if errValue.Type() == expectedType {
+		return ResultSuccess
+	}
+	return ResultFailure(fmt.Sprintf("error is %s (%T), not %s", err, err, expectedType))
+}
+
+func cmpErrorTypeImplementsType(err error, expectedType reflect.Type) Result {
+	if err == nil {
+		return ResultFailure(fmt.Sprintf("error is nil, not %s", expectedType))
+	}
+	errValue := reflect.ValueOf(err)
+	if errValue.Type().Implements(expectedType) {
+		return ResultSuccess
+	}
+	return ResultFailure(fmt.Sprintf("error is %s (%T), not %s", err, err, expectedType))
+}
+
+func isPtrToInterface(typ reflect.Type) bool {
+	return typ.Kind() == reflect.Ptr && typ.Elem().Kind() == reflect.Interface
+}
+
+func isPtrToStruct(typ reflect.Type) bool {
+	return typ.Kind() == reflect.Ptr && typ.Elem().Kind() == reflect.Struct
+}

libnetwork/vendor/gotest.tools/assert/cmp/result.go

@@ -0,0 +1,94 @@
+package cmp
+
+import (
+	"bytes"
+	"fmt"
+	"go/ast"
+	"text/template"
+
+	"gotest.tools/internal/source"
+)
+
+// Result of a Comparison.
+type Result interface {
+	Success() bool
+}
+
+type result struct {
+	success bool
+	message string
+}
+
+func (r result) Success() bool {
+	return r.success
+}
+
+func (r result) FailureMessage() string {
+	return r.message
+}
+
+// ResultSuccess is a constant which is returned by a ComparisonWithResult to
+// indicate success.
+var ResultSuccess = result{success: true}
+
+// ResultFailure returns a failed Result with a failure message.
+func ResultFailure(message string) Result {
+	return result{message: message}
+}
+
+// ResultFromError returns ResultSuccess if err is nil. Otherwise ResultFailure
+// is returned with the error message as the failure message.
+func ResultFromError(err error) Result {
+	if err == nil {
+		return ResultSuccess
+	}
+	return ResultFailure(err.Error())
+}
+
+type templatedResult struct {
+	success  bool
+	template string
+	data     map[string]interface{}
+}
+
+func (r templatedResult) Success() bool {
+	return r.success
+}
+
+func (r templatedResult) FailureMessage(args []ast.Expr) string {
+	msg, err := renderMessage(r, args)
+	if err != nil {
+		return fmt.Sprintf("failed to render failure message: %s", err)
+	}
+	return msg
+}
+
+// ResultFailureTemplate returns a Result with a template string and data which
+// can be used to format a failure message. The template may access data from .Data,
+// the comparison args with the callArg function, and the formatNode function may
+// be used to format the call args.
+func ResultFailureTemplate(template string, data map[string]interface{}) Result {
+	return templatedResult{template: template, data: data}
+}
+
+func renderMessage(result templatedResult, args []ast.Expr) (string, error) {
+	tmpl := template.New("failure").Funcs(template.FuncMap{
+		"formatNode": source.FormatNode,
+		"callArg": func(index int) ast.Expr {
+			if index >= len(args) {
+				return nil
+			}
+			return args[index]
+		},
+	})
+	var err error
+	tmpl, err = tmpl.Parse(result.template)
+	if err != nil {
+		return "", err
+	}
+	buf := new(bytes.Buffer)
+	err = tmpl.Execute(buf, map[string]interface{}{
+		"Data": result.data,
+	})
+	return buf.String(), err
+}

libnetwork/vendor/gotest.tools/assert/result.go

@@ -0,0 +1,107 @@
+package assert
+
+import (
+	"fmt"
+	"go/ast"
+
+	"gotest.tools/assert/cmp"
+	"gotest.tools/internal/format"
+	"gotest.tools/internal/source"
+)
+
+func runComparison(
+	t TestingT,
+	argSelector argSelector,
+	f cmp.Comparison,
+	msgAndArgs ...interface{},
+) bool {
+	if ht, ok := t.(helperT); ok {
+		ht.Helper()
+	}
+	result := f()
+	if result.Success() {
+		return true
+	}
+
+	var message string
+	switch typed := result.(type) {
+	case resultWithComparisonArgs:
+		const stackIndex = 3 // Assert/Check, assert, runComparison
+		args, err := source.CallExprArgs(stackIndex)
+		if err != nil {
+			t.Log(err.Error())
+		}
+		message = typed.FailureMessage(filterPrintableExpr(argSelector(args)))
+	case resultBasic:
+		message = typed.FailureMessage()
+	default:
+		message = fmt.Sprintf("comparison returned invalid Result type: %T", result)
+	}
+
+	t.Log(format.WithCustomMessage(failureMessage+message, msgAndArgs...))
+	return false
+}
+
+type resultWithComparisonArgs interface {
+	FailureMessage(args []ast.Expr) string
+}
+
+type resultBasic interface {
+	FailureMessage() string
+}
+
+// filterPrintableExpr filters the ast.Expr slice to only include Expr that are
+// easy to read when printed and contain relevant information to an assertion.
+//
+// Ident and SelectorExpr are included because they print nicely and the variable
+// names may provide additional context to their values.
+// BasicLit and CompositeLit are excluded because their source is equivalent to
+// their value, which is already available.
+// Other types are ignored for now, but could be added if they are relevant.
+func filterPrintableExpr(args []ast.Expr) []ast.Expr {
+	result := make([]ast.Expr, len(args))
+	for i, arg := range args {
+		if isShortPrintableExpr(arg) {
+			result[i] = arg
+			continue
+		}
+
+		if starExpr, ok := arg.(*ast.StarExpr); ok {
+			result[i] = starExpr.X
+			continue
+		}
+		result[i] = nil
+	}
+	return result
+}
+
+func isShortPrintableExpr(expr ast.Expr) bool {
+	switch expr.(type) {
+	case *ast.Ident, *ast.SelectorExpr, *ast.IndexExpr, *ast.SliceExpr:
+		return true
+	case *ast.BinaryExpr, *ast.UnaryExpr:
+		return true
+	default:
+		// CallExpr, ParenExpr, TypeAssertExpr, KeyValueExpr, StarExpr
+		return false
+	}
+}
+
+type argSelector func([]ast.Expr) []ast.Expr
+
+func argsAfterT(args []ast.Expr) []ast.Expr {
+	if len(args) < 1 {
+		return nil
+	}
+	return args[1:]
+}
+
+func argsFromComparisonCall(args []ast.Expr) []ast.Expr {
+	if len(args) < 1 {
+		return nil
+	}
+	if callExpr, ok := args[1].(*ast.CallExpr); ok {
+		return callExpr.Args
+	}
+	return nil
+}

libnetwork/vendor/github.com/pmezard/go-difflib/difflib/difflib.go → libnetwork/vendor/gotest.tools/internal/difflib/difflib.go

@@ -1,27 +1,10 @@
-// Package difflib is a partial port of Python difflib module.
-//
-// It provides tools to compare sequences of strings and generate textual diffs.
-//
-// The following class and functions have been ported:
-//
-// - SequenceMatcher
-//
-// - unified_diff
-//
-// - context_diff
-//
-// Getting unified diffs was the main goal of the port. Keep in mind this code
-// is mostly suitable to output text differences in a human friendly way, there
-// are no guarantees generated diffs are consumable by patch(1).
-package difflib
+/* Package difflib is a partial port of Python difflib module.
+
+Original source: https://github.com/pmezard/go-difflib
 
-import (
-	"bufio"
-	"bytes"
-	"fmt"
-	"io"
-	"strings"
-)
+This file is trimmed to only the parts used by this repository.
+*/
+package difflib // import "gotest.tools/internal/difflib"
 
 func min(a, b int) int {
 	if a < b {
@@ -37,13 +20,6 @@ func max(a, b int) int {
 	return b
 }
 
-func calculateRatio(matches, length int) float64 {
-	if length > 0 {
-		return 2.0 * float64(matches) / float64(length)
-	}
-	return 1.0
-}
-
 type Match struct {
 	A    int
 	B    int
@@ -103,14 +79,6 @@ func NewMatcher(a, b []string) *SequenceMatcher {
 	return &m
 }
 
-func NewMatcherWithJunk(a, b []string, autoJunk bool,
-	isJunk func(string) bool) *SequenceMatcher {
-
-	m := SequenceMatcher{IsJunk: isJunk, autoJunk: autoJunk}
-	m.SetSeqs(a, b)
-	return &m
-}
-
 // Set two sequences to be compared.
 func (m *SequenceMatcher) SetSeqs(a, b []string) {
 	m.SetSeq1(a)
@@ -450,323 +418,3 @@ func (m *SequenceMatcher) GetGroupedOpCodes(n int) [][]OpCode {
 	}
 	return groups
 }
-
-// Return a measure of the sequences' similarity (float in [0,1]).
-//
-// Where T is the total number of elements in both sequences, and
-// M is the number of matches, this is 2.0*M / T.
-// Note that this is 1 if the sequences are identical, and 0 if
-// they have nothing in common.
-//
-// .Ratio() is expensive to compute if you haven't already computed
-// .GetMatchingBlocks() or .GetOpCodes(), in which case you may
-// want to try .QuickRatio() or .RealQuickRation() first to get an
-// upper bound.
-func (m *SequenceMatcher) Ratio() float64 {
-	matches := 0
-	for _, m := range m.GetMatchingBlocks() {
-		matches += m.Size
-	}
-	return calculateRatio(matches, len(m.a)+len(m.b))
-}
-
-// Return an upper bound on ratio() relatively quickly.
-//
-// This isn't defined beyond that it is an upper bound on .Ratio(), and
-// is faster to compute.
-func (m *SequenceMatcher) QuickRatio() float64 {
-	// viewing a and b as multisets, set matches to the cardinality
-	// of their intersection; this counts the number of matches
-	// without regard to order, so is clearly an upper bound
-	if m.fullBCount == nil {
-		m.fullBCount = map[string]int{}
-		for _, s := range m.b {
-			m.fullBCount[s] = m.fullBCount[s] + 1
-		}
-	}
-
-	// avail[x] is the number of times x appears in 'b' less the
-	// number of times we've seen it in 'a' so far ... kinda
-	avail := map[string]int{}
-	matches := 0
-	for _, s := range m.a {
-		n, ok := avail[s]
-		if !ok {
-			n = m.fullBCount[s]
-		}
-		avail[s] = n - 1
-		if n > 0 {
-			matches += 1
-		}
-	}
-	return calculateRatio(matches, len(m.a)+len(m.b))
-}
-
-// Return an upper bound on ratio() very quickly.
-//
-// This isn't defined beyond that it is an upper bound on .Ratio(), and
-// is faster to compute than either .Ratio() or .QuickRatio().
-func (m *SequenceMatcher) RealQuickRatio() float64 {
-	la, lb := len(m.a), len(m.b)
-	return calculateRatio(min(la, lb), la+lb)
-}
-
-// Convert range to the "ed" format
-func formatRangeUnified(start, stop int) string {
-	// Per the diff spec at http://www.unix.org/single_unix_specification/
-	beginning := start + 1 // lines start numbering with one
-	length := stop - start
-	if length == 1 {
-		return fmt.Sprintf("%d", beginning)
-	}
-	if length == 0 {
-		beginning -= 1 // empty ranges begin at line just before the range
-	}
-	return fmt.Sprintf("%d,%d", beginning, length)
-}
-
-// Unified diff parameters
-type UnifiedDiff struct {
-	A        []string // First sequence lines
-	FromFile string   // First file name
-	FromDate string   // First file time
-	B        []string // Second sequence lines
-	ToFile   string   // Second file name
-	ToDate   string   // Second file time
-	Eol      string   // Headers end of line, defaults to LF
-	Context  int      // Number of context lines
-}
-
-// Compare two sequences of lines; generate the delta as a unified diff.
-//
-// Unified diffs are a compact way of showing line changes and a few
-// lines of context.  The number of context lines is set by 'n' which
-// defaults to three.
-//
-// By default, the diff control lines (those with ---, +++, or @@) are
-// created with a trailing newline.  This is helpful so that inputs
-// created from file.readlines() result in diffs that are suitable for
-// file.writelines() since both the inputs and outputs have trailing
-// newlines.
-//
-// For inputs that do not have trailing newlines, set the lineterm
-// argument to "" so that the output will be uniformly newline free.
-//
-// The unidiff format normally has a header for filenames and modification
-// times.  Any or all of these may be specified using strings for
-// 'fromfile', 'tofile', 'fromfiledate', and 'tofiledate'.
-// The modification times are normally expressed in the ISO 8601 format.
-func WriteUnifiedDiff(writer io.Writer, diff UnifiedDiff) error {
-	buf := bufio.NewWriter(writer)
-	defer buf.Flush()
-	wf := func(format string, args ...interface{}) error {
-		_, err := buf.WriteString(fmt.Sprintf(format, args...))
-		return err
-	}
-	ws := func(s string) error {
-		_, err := buf.WriteString(s)
-		return err
-	}
-
-	if len(diff.Eol) == 0 {
-		diff.Eol = "\n"
-	}
-
-	started := false
-	m := NewMatcher(diff.A, diff.B)
-	for _, g := range m.GetGroupedOpCodes(diff.Context) {
-		if !started {
-			started = true
-			fromDate := ""
-			if len(diff.FromDate) > 0 {
-				fromDate = "\t" + diff.FromDate
-			}
-			toDate := ""
-			if len(diff.ToDate) > 0 {
-				toDate = "\t" + diff.ToDate
-			}
-			if diff.FromFile != "" || diff.ToFile != "" {
-				err := wf("--- %s%s%s", diff.FromFile, fromDate, diff.Eol)
-				if err != nil {
-					return err
-				}
-				err = wf("+++ %s%s%s", diff.ToFile, toDate, diff.Eol)
-				if err != nil {
-					return err
-				}
-			}
-		}
-		first, last := g[0], g[len(g)-1]
-		range1 := formatRangeUnified(first.I1, last.I2)
-		range2 := formatRangeUnified(first.J1, last.J2)
-		if err := wf("@@ -%s +%s @@%s", range1, range2, diff.Eol); err != nil {
-			return err
-		}
-		for _, c := range g {
-			i1, i2, j1, j2 := c.I1, c.I2, c.J1, c.J2
-			if c.Tag == 'e' {
-				for _, line := range diff.A[i1:i2] {
-					if err := ws(" " + line); err != nil {
-						return err
-					}
-				}
-				continue
-			}
-			if c.Tag == 'r' || c.Tag == 'd' {
-				for _, line := range diff.A[i1:i2] {
-					if err := ws("-" + line); err != nil {
-						return err
-					}
-				}
-			}
-			if c.Tag == 'r' || c.Tag == 'i' {
-				for _, line := range diff.B[j1:j2] {
-					if err := ws("+" + line); err != nil {
-						return err
-					}
-				}
-			}
-		}
-	}
-	return nil
-}
-
-// Like WriteUnifiedDiff but returns the diff a string.
-func GetUnifiedDiffString(diff UnifiedDiff) (string, error) {
-	w := &bytes.Buffer{}
-	err := WriteUnifiedDiff(w, diff)
-	return string(w.Bytes()), err
-}
-
-// Convert range to the "ed" format.
-func formatRangeContext(start, stop int) string {
-	// Per the diff spec at http://www.unix.org/single_unix_specification/
-	beginning := start + 1 // lines start numbering with one
-	length := stop - start
-	if length == 0 {
-		beginning -= 1 // empty ranges begin at line just before the range
-	}
-	if length <= 1 {
-		return fmt.Sprintf("%d", beginning)
-	}
-	return fmt.Sprintf("%d,%d", beginning, beginning+length-1)
-}
-
-type ContextDiff UnifiedDiff
-
-// Compare two sequences of lines; generate the delta as a context diff.
-//
-// Context diffs are a compact way of showing line changes and a few
-// lines of context. The number of context lines is set by diff.Context
-// which defaults to three.
-//
-// By default, the diff control lines (those with *** or ---) are
-// created with a trailing newline.
-//
-// For inputs that do not have trailing newlines, set the diff.Eol
-// argument to "" so that the output will be uniformly newline free.
-//
-// The context diff format normally has a header for filenames and
-// modification times.  Any or all of these may be specified using
-// strings for diff.FromFile, diff.ToFile, diff.FromDate, diff.ToDate.
-// The modification times are normally expressed in the ISO 8601 format.
-// If not specified, the strings default to blanks.
-func WriteContextDiff(writer io.Writer, diff ContextDiff) error {
-	buf := bufio.NewWriter(writer)
-	defer buf.Flush()
-	var diffErr error
-	wf := func(format string, args ...interface{}) {
-		_, err := buf.WriteString(fmt.Sprintf(format, args...))
-		if diffErr == nil && err != nil {
-			diffErr = err
-		}
-	}
-	ws := func(s string) {
-		_, err := buf.WriteString(s)
-		if diffErr == nil && err != nil {
-			diffErr = err
-		}
-	}
-
-	if len(diff.Eol) == 0 {
-		diff.Eol = "\n"
-	}
-
-	prefix := map[byte]string{
-		'i': "+ ",
-		'd': "- ",
-		'r': "! ",
-		'e': "  ",
-	}
-
-	started := false
-	m := NewMatcher(diff.A, diff.B)
-	for _, g := range m.GetGroupedOpCodes(diff.Context) {
-		if !started {
-			started = true
-			fromDate := ""
-			if len(diff.FromDate) > 0 {
-				fromDate = "\t" + diff.FromDate
-			}
-			toDate := ""
-			if len(diff.ToDate) > 0 {
-				toDate = "\t" + diff.ToDate
-			}
-			if diff.FromFile != "" || diff.ToFile != "" {
-				wf("*** %s%s%s", diff.FromFile, fromDate, diff.Eol)
-				wf("--- %s%s%s", diff.ToFile, toDate, diff.Eol)
-			}
-		}
-
-		first, last := g[0], g[len(g)-1]
-		ws("***************" + diff.Eol)
-
-		range1 := formatRangeContext(first.I1, last.I2)
-		wf("*** %s ****%s", range1, diff.Eol)
-		for _, c := range g {
-			if c.Tag == 'r' || c.Tag == 'd' {
-				for _, cc := range g {
-					if cc.Tag == 'i' {
-						continue
-					}
-					for _, line := range diff.A[cc.I1:cc.I2] {
-						ws(prefix[cc.Tag] + line)
-					}
-				}
-				break
-			}
-		}
-
-		range2 := formatRangeContext(first.J1, last.J2)
-		wf("--- %s ----%s", range2, diff.Eol)
-		for _, c := range g {
-			if c.Tag == 'r' || c.Tag == 'i' {
-				for _, cc := range g {
-					if cc.Tag == 'd' {
-						continue
-					}
-					for _, line := range diff.B[cc.J1:cc.J2] {
-						ws(prefix[cc.Tag] + line)
-					}
-				}
-				break
-			}
-		}
-	}
-	return diffErr
-}
-
-// Like WriteContextDiff but returns the diff a string.
-func GetContextDiffString(diff ContextDiff) (string, error) {
-	w := &bytes.Buffer{}
-	err := WriteContextDiff(w, diff)
-	return string(w.Bytes()), err
-}
-
-// Split a string on "\n" while preserving them. The output can be used
-// as input for UnifiedDiff and ContextDiff structures.
-func SplitLines(s string) []string {
-	lines := strings.SplitAfter(s, "\n")
-	lines[len(lines)-1] += "\n"
-	return lines
-}

libnetwork/vendor/gotest.tools/internal/format/diff.go

@@ -0,0 +1,161 @@
+package format
+
+import (
+	"bytes"
+	"fmt"
+	"strings"
+	"unicode"
+
+	"gotest.tools/internal/difflib"
+)
+
+const (
+	contextLines = 2
+)
+
+// DiffConfig for a unified diff
+type DiffConfig struct {
+	A    string
+	B    string
+	From string
+	To   string
+}
+
+// UnifiedDiff is a modified version of difflib.WriteUnifiedDiff with better
+// support for showing the whitespace differences.
+func UnifiedDiff(conf DiffConfig) string {
+	a := strings.SplitAfter(conf.A, "\n")
+	b := strings.SplitAfter(conf.B, "\n")
+	groups := difflib.NewMatcher(a, b).GetGroupedOpCodes(contextLines)
+	if len(groups) == 0 {
+		return ""
+	}
+
+	buf := new(bytes.Buffer)
+	writeFormat := func(format string, args ...interface{}) {
+		buf.WriteString(fmt.Sprintf(format, args...))
+	}
+	writeLine := func(prefix string, s string) {
+		buf.WriteString(prefix + s)
+	}
+	if hasWhitespaceDiffLines(groups, a, b) {
+		writeLine = visibleWhitespaceLine(writeLine)
+	}
+	formatHeader(writeFormat, conf)
+	for _, group := range groups {
+		formatRangeLine(writeFormat, group)
+		for _, opCode := range group {
+			in, out := a[opCode.I1:opCode.I2], b[opCode.J1:opCode.J2]
+			switch opCode.Tag {
+			case 'e':
+				formatLines(writeLine, " ", in)
+			case 'r':
+				formatLines(writeLine, "-", in)
+				formatLines(writeLine, "+", out)
+			case 'd':
+				formatLines(writeLine, "-", in)
+			case 'i':
+				formatLines(writeLine, "+", out)
+			}
+		}
+	}
+	return buf.String()
+}
+
+// hasWhitespaceDiffLines returns true if any diff groups is only different
+// because of whitespace characters.
+func hasWhitespaceDiffLines(groups [][]difflib.OpCode, a, b []string) bool {
+	for _, group := range groups {
+		in, out := new(bytes.Buffer), new(bytes.Buffer)
+		for _, opCode := range group {
+			if opCode.Tag == 'e' {
+				continue
+			}
+			for _, line := range a[opCode.I1:opCode.I2] {
+				in.WriteString(line)
+			}
+			for _, line := range b[opCode.J1:opCode.J2] {
+				out.WriteString(line)
+			}
+		}
+		if removeWhitespace(in.String()) == removeWhitespace(out.String()) {
+			return true
+		}
+	}
+	return false
+}
+
+func removeWhitespace(s string) string {
+	var result []rune
+	for _, r := range s {
+		if !unicode.IsSpace(r) {
+			result = append(result, r)
+		}
+	}
+	return string(result)
+}
+
+func visibleWhitespaceLine(ws func(string, string)) func(string, string) {
+	mapToVisibleSpace := func(r rune) rune {
+		switch r {
+		case '\n':
+		case ' ':
+			return '·'
+		case '\t':
+			return '▷'
+		case '\v':
+			return '▽'
+		case '\r':
+			return '↵'
+		case '\f':
+			return '↓'
+		default:
+			if unicode.IsSpace(r) {
+				return '�'
+			}
+		}
+		return r
+	}
+	return func(prefix, s string) {
+		ws(prefix, strings.Map(mapToVisibleSpace, s))
+	}
+}
+
+func formatHeader(wf func(string, ...interface{}), conf DiffConfig) {
+	if conf.From != "" || conf.To != "" {
+		wf("--- %s\n", conf.From)
+		wf("+++ %s\n", conf.To)
+	}
+}
+
+func formatRangeLine(wf func(string, ...interface{}), group []difflib.OpCode) {
+	first, last := group[0], group[len(group)-1]
+	range1 := formatRangeUnified(first.I1, last.I2)
+	range2 := formatRangeUnified(first.J1, last.J2)
+	wf("@@ -%s +%s @@\n", range1, range2)
+}
+
+// Convert range to the "ed" format
+func formatRangeUnified(start, stop int) string {
+	// Per the diff spec at http://www.unix.org/single_unix_specification/
+	beginning := start + 1 // lines start numbering with one
+	length := stop - start
+	if length == 1 {
+		return fmt.Sprintf("%d", beginning)
+	}
+	if length == 0 {
+		beginning-- // empty ranges begin at line just before the range
+	}
+	return fmt.Sprintf("%d,%d", beginning, length)
+}
+
+func formatLines(writeLine func(string, string), prefix string, lines []string) {
+	for _, line := range lines {
+		writeLine(prefix, line)
+	}
+	// Add a newline if the last line is missing one so that the diff displays
+	// properly.
+	if !strings.HasSuffix(lines[len(lines)-1], "\n") {
+		writeLine("", "\n")
+	}
+}

libnetwork/vendor/gotest.tools/internal/format/format.go

@@ -0,0 +1,27 @@
+package format // import "gotest.tools/internal/format"
+
+import "fmt"
+
+// Message accepts a msgAndArgs varargs and formats it using fmt.Sprintf
+func Message(msgAndArgs ...interface{}) string {
+	switch len(msgAndArgs) {
+	case 0:
+		return ""
+	case 1:
+		return fmt.Sprintf("%v", msgAndArgs[0])
+	default:
+		return fmt.Sprintf(msgAndArgs[0].(string), msgAndArgs[1:]...)
+	}
+}
+
+// WithCustomMessage accepts one or two messages and formats them appropriately
+func WithCustomMessage(source string, msgAndArgs ...interface{}) string {
+	custom := Message(msgAndArgs...)
+	switch {
+	case custom == "":
+		return source
+	case source == "":
+		return custom
+	}
+	return fmt.Sprintf("%s: %s", source, custom)
+}

libnetwork/vendor/gotest.tools/internal/source/source.go

@@ -0,0 +1,163 @@
+package source // import "gotest.tools/internal/source"
+
+import (
+	"bytes"
+	"fmt"
+	"go/ast"
+	"go/format"
+	"go/parser"
+	"go/token"
+	"os"
+	"runtime"
+	"strconv"
+	"strings"
+
+	"github.com/pkg/errors"
+)
+
+const baseStackIndex = 1
+
+// FormattedCallExprArg returns the argument from an ast.CallExpr at the
+// index in the call stack. The argument is formatted using FormatNode.
+func FormattedCallExprArg(stackIndex int, argPos int) (string, error) {
+	args, err := CallExprArgs(stackIndex + 1)
+	if err != nil {
+		return "", err
+	}
+	return FormatNode(args[argPos])
+}
+
+func getNodeAtLine(filename string, lineNum int) (ast.Node, error) {
+	fileset := token.NewFileSet()
+	astFile, err := parser.ParseFile(fileset, filename, nil, parser.AllErrors)
+	if err != nil {
+		return nil, errors.Wrapf(err, "failed to parse source file: %s", filename)
+	}
+
+	node := scanToLine(fileset, astFile, lineNum)
+	if node == nil {
+		return nil, errors.Errorf(
+			"failed to find an expression on line %d in %s", lineNum, filename)
+	}
+	return node, nil
+}
+
+func scanToLine(fileset *token.FileSet, node ast.Node, lineNum int) ast.Node {
+	v := &scanToLineVisitor{lineNum: lineNum, fileset: fileset}
+	ast.Walk(v, node)
+	return v.matchedNode
+}
+
+type scanToLineVisitor struct {
+	lineNum     int
+	matchedNode ast.Node
+	fileset     *token.FileSet
+}
+
+func (v *scanToLineVisitor) Visit(node ast.Node) ast.Visitor {
+	if node == nil || v.matchedNode != nil {
+		return nil
+	}
+	if v.nodePosition(node).Line == v.lineNum {
+		v.matchedNode = node
+		return nil
+	}
+	return v
+}
+
+// In golang 1.9 the line number changed from being the line where the statement
+// ended to the line where the statement began.
+func (v *scanToLineVisitor) nodePosition(node ast.Node) token.Position {
+	if goVersionBefore19 {
+		return v.fileset.Position(node.End())
+	}
+	return v.fileset.Position(node.Pos())
+}
+
+var goVersionBefore19 = isGOVersionBefore19()
+
+func isGOVersionBefore19() bool {
+	version := runtime.Version()
+	// not a release version
+	if !strings.HasPrefix(version, "go") {
+		return false
+	}
+	version = strings.TrimPrefix(version, "go")
+	parts := strings.Split(version, ".")
+	if len(parts) < 2 {
+		return false
+	}
+	minor, err := strconv.ParseInt(parts[1], 10, 32)
+	return err == nil && parts[0] == "1" && minor < 9
+}
+
+func getCallExprArgs(node ast.Node) ([]ast.Expr, error) {
+	visitor := &callExprVisitor{}
+	ast.Walk(visitor, node)
+	if visitor.expr == nil {
+		return nil, errors.New("failed to find call expression")
+	}
+	return visitor.expr.Args, nil
+}
+
+type callExprVisitor struct {
+	expr *ast.CallExpr
+}
+
+func (v *callExprVisitor) Visit(node ast.Node) ast.Visitor {
+	if v.expr != nil || node == nil {
+		return nil
+	}
+	debug("visit (%T): %s", node, debugFormatNode{node})
+
+	if callExpr, ok := node.(*ast.CallExpr); ok {
+		v.expr = callExpr
+		return nil
+	}
+	return v
+}
+
+// FormatNode using go/format.Node and return the result as a string
+func FormatNode(node ast.Node) (string, error) {
+	buf := new(bytes.Buffer)
+	err := format.Node(buf, token.NewFileSet(), node)
+	return buf.String(), err
+}
+
+// CallExprArgs returns the ast.Expr slice for the args of an ast.CallExpr at
+// the index in the call stack.
+func CallExprArgs(stackIndex int) ([]ast.Expr, error) {
+	_, filename, lineNum, ok := runtime.Caller(baseStackIndex + stackIndex)
+	if !ok {
+		return nil, errors.New("failed to get call stack")
+	}
+	debug("call stack position: %s:%d", filename, lineNum)
+
+	node, err := getNodeAtLine(filename, lineNum)
+	if err != nil {
+		return nil, err
+	}
+	debug("found node (%T): %s", node, debugFormatNode{node})
+
+	return getCallExprArgs(node)
+}
+
+var debugEnabled = os.Getenv("GOTESTYOURSELF_DEBUG") != ""
+
+func debug(format string, args ...interface{}) {
+	if debugEnabled {
+		fmt.Fprintf(os.Stderr, "DEBUG: "+format+"\n", args...)
+	}
+}
+
+type debugFormatNode struct {
+	ast.Node
+}
+
+func (n debugFormatNode) String() string {
+	out, err := FormatNode(n.Node)
+	if err != nil {
+		return fmt.Sprintf("failed to format %s: %s", n.Node, err)
+	}
+	return out
+}