97 lines
2.4 KiB
Go
97 lines
2.4 KiB
Go
// +build linux
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package local // import "github.com/docker/docker/volume/local"
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import (
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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"github.com/docker/docker/pkg/idtools"
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"github.com/docker/docker/quota"
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"gotest.tools/v3/assert"
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is "gotest.tools/v3/assert/cmp"
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)
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const quotaSize = 1024 * 1024
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const quotaSizeLiteral = "1M"
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func TestQuota(t *testing.T) {
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if msg, ok := quota.CanTestQuota(); !ok {
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t.Skip(msg)
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}
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// get sparse xfs test image
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imageFileName, err := quota.PrepareQuotaTestImage(t)
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if err != nil {
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t.Fatal(err)
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}
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defer os.Remove(imageFileName)
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t.Run("testVolWithQuota", quota.WrapMountTest(imageFileName, true, testVolWithQuota))
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t.Run("testVolQuotaUnsupported", quota.WrapMountTest(imageFileName, false, testVolQuotaUnsupported))
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}
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func testVolWithQuota(t *testing.T, mountPoint, backingFsDev, testDir string) {
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r, err := New(testDir, idtools.Identity{UID: os.Geteuid(), GID: os.Getegid()})
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if err != nil {
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t.Fatal(err)
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}
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assert.Assert(t, r.quotaCtl != nil)
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vol, err := r.Create("testing", map[string]string{"size": quotaSizeLiteral})
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if err != nil {
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t.Fatal(err)
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}
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dir, err := vol.Mount("1234")
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if err != nil {
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t.Fatal(err)
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}
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defer func() {
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if err := vol.Unmount("1234"); err != nil {
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t.Fatal(err)
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}
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}()
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testfile := filepath.Join(dir, "testfile")
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// test writing file smaller than quota
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assert.NilError(t, ioutil.WriteFile(testfile, make([]byte, quotaSize/2), 0644))
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assert.NilError(t, os.Remove(testfile))
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// test writing fiel larger than quota
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err = ioutil.WriteFile(testfile, make([]byte, quotaSize+1), 0644)
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assert.ErrorContains(t, err, "")
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if _, err := os.Stat(testfile); err == nil {
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assert.NilError(t, os.Remove(testfile))
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}
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}
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func testVolQuotaUnsupported(t *testing.T, mountPoint, backingFsDev, testDir string) {
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r, err := New(testDir, idtools.Identity{UID: os.Geteuid(), GID: os.Getegid()})
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if err != nil {
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t.Fatal(err)
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}
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assert.Assert(t, is.Nil(r.quotaCtl))
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_, err = r.Create("testing", map[string]string{"size": quotaSizeLiteral})
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assert.ErrorContains(t, err, "no quota support")
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vol, err := r.Create("testing", nil)
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if err != nil {
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t.Fatal(err)
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}
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// this could happen if someone moves volumes from storage with
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// quota support to some place without
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lv, ok := vol.(*localVolume)
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assert.Assert(t, ok)
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lv.opts = &optsConfig{
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Quota: quota.Quota{Size: quotaSize},
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}
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_, err = vol.Mount("1234")
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assert.ErrorContains(t, err, "no quota support")
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}
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