Updating tests to use controller.Stop() to cleanup states

Signed-off-by: Madhu Venugopal <madhu@docker.com>

libnetwork/api/api_test.go

@@ -92,6 +92,7 @@ func createTestNetwork(t *testing.T, network string) (libnetwork.NetworkControll
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer c.Stop()
 
 	netOption := options.Generic{
 		netlabel.GenericData: options.Generic{
@@ -179,6 +180,7 @@ func TestCreateDeleteNetwork(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer c.Stop()
 
 	badBody, err := json.Marshal("bad body")
 	if err != nil {
@@ -253,6 +255,7 @@ func TestGetNetworksAndEndpoints(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer c.Stop()
 
 	ops := options.Generic{
 		netlabel.GenericData: map[string]string{
@@ -522,6 +525,7 @@ func TestProcGetServices(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer c.Stop()
 
 	// Create 2 networks
 	netName1 := "production"
@@ -999,6 +1003,7 @@ func TestDetectGetNetworksInvalidQueryComposition(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer c.Stop()
 
 	vars := map[string]string{urlNwName: "x", urlNwPID: "y"}
 	_, errRsp := procGetNetworks(c, vars, nil)
@@ -1106,6 +1111,7 @@ func TestCreateDeleteEndpoints(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer c.Stop()
 
 	nc := networkCreate{Name: "firstNet", NetworkType: bridgeNetType}
 	body, err := json.Marshal(nc)
@@ -1228,6 +1234,7 @@ func TestJoinLeave(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer c.Stop()
 
 	nb, err := json.Marshal(networkCreate{Name: "network", NetworkType: bridgeNetType})
 	if err != nil {
@@ -1667,6 +1674,7 @@ func TestHttpHandlerUninit(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer c.Stop()
 
 	h := &httpHandler{c: c}
 	h.initRouter()
@@ -1733,6 +1741,7 @@ func TestHttpHandlerBadBody(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer c.Stop()
 	handleRequest := NewHTTPHandler(c)
 
 	req, err := http.NewRequest("POST", "/v1.19/networks", &localReader{beBad: true})
@@ -1765,6 +1774,7 @@ func TestEndToEnd(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer c.Stop()
 
 	handleRequest := NewHTTPHandler(c)
 
@@ -2213,6 +2223,7 @@ func TestEndToEndErrorMessage(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer c.Stop()
 	handleRequest := NewHTTPHandler(c)
 
 	body := []byte{}

libnetwork/controller.go

@@ -487,6 +487,9 @@ func (c *controller) loadDriver(networkType string) (*driverData, error) {
 }
 
 func (c *controller) Stop() {
+	if c.localStore != nil {
+		c.localStore.KVStore().Close()
+	}
 	c.stopExternalKeyListener()
 	osl.GC()
 }

libnetwork/libnetwork_internal_test.go

@@ -13,6 +13,7 @@ func TestDriverRegistration(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer c.Stop()
 	err = c.(*controller).RegisterDriver(bridgeNetType, nil, driverapi.Capability{})
 	if err == nil {
 		t.Fatalf("Expecting the RegisterDriver to fail for %s", bridgeNetType)

libnetwork/libnetwork_test.go

@@ -53,7 +53,9 @@ func TestMain(m *testing.M) {
 
 	libnetwork.SetTestDataStore(controller, datastore.NewCustomDataStore(datastore.NewMockStore()))
 
-	os.Exit(m.Run())
+	x := m.Run()
+	controller.Stop()
+	os.Exit(x)
 }
 
 func createController() error {
@@ -2071,12 +2073,13 @@ func TestInvalidRemoteDriver(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	controller, err := libnetwork.New()
+	ctrlr, err := libnetwork.New()
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer ctrlr.Stop()
 
-	_, err = controller.NewNetwork("invalid-network-driver", "dummy",
+	_, err = ctrlr.NewNetwork("invalid-network-driver", "dummy",
 		libnetwork.NetworkOptionGeneric(getEmptyGenericOption()))
 	if err == nil {
 		t.Fatal("Expected to fail. But instead succeeded")

libnetwork/store_test.go

@@ -15,20 +15,21 @@ import (
 )
 
 func TestZooKeeperBackend(t *testing.T) {
-	if err := testNewController(t, "zk", "127.0.0.1:2181"); err != nil {
+	c, err := testNewController(t, "zk", "127.0.0.1:2181")
+	if err != nil {
 		t.Fatal(err)
 	}
+	c.Stop()
 }
 
-func testNewController(t *testing.T, provider, url string) error {
+func testNewController(t *testing.T, provider, url string) (NetworkController, error) {
 	cfgOptions, err := OptionBoltdbWithRandomDBFile()
 	if err != nil {
-		return err
+		return nil, err
 	}
 	cfgOptions = append(cfgOptions, config.OptionKVProvider(provider))
 	cfgOptions = append(cfgOptions, config.OptionKVProviderURL(url))
-	_, err = New(cfgOptions...)
-	return err
+	return New(cfgOptions...)
 }
 
 func TestBoltdbBackend(t *testing.T) {
@@ -51,6 +52,7 @@ func testLocalBackend(t *testing.T, provider, url string, storeConfig *store.Con
 	genericOption[netlabel.GenericData] = driverOptions
 	cfgOptions = append(cfgOptions, config.OptionDriverConfig("host", genericOption))
 
+	fmt.Printf("URL : %s\n", url)
 	ctrl, err := New(cfgOptions...)
 	if err != nil {
 		t.Fatalf("Error new controller: %v", err)
@@ -108,14 +110,10 @@ func TestLocalStoreLockTimeout(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Error new controller: %v", err)
 	}
+	defer ctrl.Stop()
 	// Use the same boltdb file without closing the previous controller
 	_, err = New(cfgOptions...)
 	if err == nil {
 		t.Fatalf("Multiple boldtdb connection must fail")
 	}
-	store := ctrl.(*controller).localStore.KVStore()
-	if store == nil {
-		t.Fatalf("Invalid LocalStore access connection")
-	}
-	store.Close()
 }