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Merge pull request #64675 from yue9944882/fix-data-race-cli-file-linux

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Automatic merge from submit-queue (batch tested with PRs 61330, 64793, 64675, 65059, 65368). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Fixes data races for pkg/kubelet/config/file_linux_test.go

**What this PR does / why we need it**:

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #64655

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
This commit is contained in:
Kubernetes Submit Queue 2018-06-22 14:52:37 -07:00 committed by GitHub
commit f09a938bcd
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1 changed files with 9 additions and 24 deletions
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33
pkg/kubelet/config/file_linux_test.go
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@ -131,6 +131,7 @@ func TestWatchFileChanged(t *testing.T) {
}
type testCase struct {
lock *sync.Mutex
desc string
linkedFile string
pod runtime.Object
@ -141,6 +142,7 @@ func getTestCases(hostname types.NodeName) []*testCase {
grace := int64(30)
return []*testCase{
{
lock: &sync.Mutex{},
desc: "Simple pod",
pod: &v1.Pod{
TypeMeta: metav1.TypeMeta{
@ -304,11 +306,10 @@ func watchFileChanged(watchDir bool, symlink bool, t *testing.T) {
}
var file string
lock := &sync.Mutex{}
ch := make(chan interface{})
func() {
lock.Lock()
defer lock.Unlock()
testCase.lock.Lock()
defer testCase.lock.Unlock()
if symlink {
file = testCase.writeToFile(linkedDirName, fileName, t)
@ -320,10 +321,6 @@ func watchFileChanged(watchDir bool, symlink bool, t *testing.T) {
if watchDir {
NewSourceFile(dirName, hostname, 100*time.Millisecond, ch)
defer func() {
// Remove the file
deleteFile(dirName, fileName, ch, t)
}()
} else {
NewSourceFile(file, hostname, 100*time.Millisecond, ch)
}
@ -332,8 +329,8 @@ func watchFileChanged(watchDir bool, symlink bool, t *testing.T) {
changeFile := func() {
// Edit the file content
lock.Lock()
defer lock.Unlock()
testCase.lock.Lock()
defer testCase.lock.Unlock()
pod := testCase.pod.(*v1.Pod)
pod.Spec.Containers[0].Name = "image2"
@ -352,9 +349,7 @@ func watchFileChanged(watchDir bool, symlink bool, t *testing.T) {
expectUpdate(t, ch, testCase)
if watchDir {
from := fileName
fileName = fileName + "_ch"
go changeFileName(dirName, from, fileName, t)
go changeFileName(dirName, fileName, fileName+"_ch", t)
// expect an update by MOVED_FROM inotify event cause changing file name
expectEmptyUpdate(t, ch)
// expect an update by MOVED_TO inotify event cause changing file name
@ -364,18 +359,6 @@ func watchFileChanged(watchDir bool, symlink bool, t *testing.T) {
}
}
func deleteFile(dir, file string, ch chan interface{}, t *testing.T) {
go func() {
path := filepath.Join(dir, file)
err := os.Remove(path)
if err != nil {
t.Errorf("unable to remove test file %s: %s", path, err)
}
}()
expectEmptyUpdate(t, ch)
}
func expectUpdate(t *testing.T, ch chan interface{}, testCase *testCase) {
timer := time.After(5 * time.Second)
for {
@ -397,6 +380,8 @@ func expectUpdate(t *testing.T, ch chan interface{}, testCase *testCase) {
}
}
testCase.lock.Lock()
defer testCase.lock.Unlock()
if !apiequality.Semantic.DeepEqual(testCase.expected, update) {
t.Fatalf("%s: Expected: %#v, Got: %#v", testCase.desc, testCase.expected, update)
}