func Test_GetAttachedVolumesForNode_Positive_TwoVolumeTwoNodes(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
asw := NewActualStateOfWorld(volumePluginMgr)
volume1Name := api.UniqueVolumeName("volume1-name")
volume1Spec := controllervolumetesting.GetTestVolumeSpec(string(volume1Name), volume1Name)
node1Name := "node1-name"
devicePath := "fake/device/path"
_, add1Err := asw.AddVolumeNode(volume1Spec, node1Name, devicePath)
if add1Err != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", add1Err)
}
volume2Name := api.UniqueVolumeName("volume2-name")
volume2Spec := controllervolumetesting.GetTestVolumeSpec(string(volume2Name), volume2Name)
node2Name := "node2-name"
generatedVolumeName2, add2Err := asw.AddVolumeNode(volume2Spec, node2Name, devicePath)
if add2Err != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", add2Err)
}
// Act
attachedVolumes := asw.GetAttachedVolumesForNode(node2Name)
// Assert
if len(attachedVolumes) != 1 {
t.Fatalf("len(attachedVolumes) Expected: <1> Actual: <%v>", len(attachedVolumes))
}
verifyAttachedVolume(t, attachedVolumes, generatedVolumeName2, string(volume2Name), node2Name, true /* expectedMountedByNode */, false /* expectNonZeroDetachRequestedTime */)
}
// Populates data struct with new pod/volume1/node.
// Calls VolumeExists() on that volume2/node.
// Verifies volume2/node does not exist, and one volume to attach.
func Test_VolumeExists_Positive_VolumeDoesntExistNodeExists(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
dsw := NewDesiredStateOfWorld(volumePluginMgr)
nodeName := "node-name"
dsw.AddNode(nodeName)
podName := types.UniquePodName("pod-uid")
volume1Name := api.UniqueVolumeName("volume1-name")
volume1Spec := controllervolumetesting.GetTestVolumeSpec(string(volume1Name), volume1Name)
generatedVolume1Name, podAddErr := dsw.AddPod(podName, volume1Spec, nodeName)
if podAddErr != nil {
t.Fatalf(
"AddPod failed for pod %q. Expected: <no error> Actual: <%v>",
podName,
podAddErr)
}
volume2Name := api.UniqueVolumeName("volume2-name")
// Act
volumeExists := dsw.VolumeExists(volume2Name, nodeName)
// Assert
if volumeExists {
t.Fatalf("Volume %q exists, it should not.", volume2Name)
}
volumesToAttach := dsw.GetVolumesToAttach()
if len(volumesToAttach) != 1 {
t.Fatalf("len(volumesToAttach) Expected: <1> Actual: <%v>", len(volumesToAttach))
}
verifyVolumeToAttach(t, volumesToAttach, nodeName, generatedVolume1Name, string(volume1Name))
}
// Populates data struct with two nodes with one volume/pod each and an extra
// pod for the second node/volume pair.
// Calls GetVolumesToAttach()
// Verifies two volumes to attach.
func Test_GetVolumesToAttach_Positive_TwoNodesOneVolumeEachExtraPod(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
dsw := NewDesiredStateOfWorld(volumePluginMgr)
node1Name := "node1-name"
pod1Name := types.UniquePodName("pod1-uid")
volume1Name := api.UniqueVolumeName("volume1-name")
volume1Spec := controllervolumetesting.GetTestVolumeSpec(string(volume1Name), volume1Name)
dsw.AddNode(node1Name)
generatedVolume1Name, podAddErr := dsw.AddPod(pod1Name, volume1Spec, node1Name)
if podAddErr != nil {
t.Fatalf(
"AddPod failed for pod %q. Expected: <no error> Actual: <%v>",
pod1Name,
podAddErr)
}
node2Name := "node2-name"
pod2Name := types.UniquePodName("pod2-uid")
volume2Name := api.UniqueVolumeName("volume2-name")
volume2Spec := controllervolumetesting.GetTestVolumeSpec(string(volume2Name), volume2Name)
dsw.AddNode(node2Name)
generatedVolume2Name, podAddErr := dsw.AddPod(pod2Name, volume2Spec, node2Name)
if podAddErr != nil {
t.Fatalf(
"AddPod failed for pod %q. Expected: <no error> Actual: <%v>",
pod2Name,
podAddErr)
}
pod3Name := types.UniquePodName("pod3-uid")
dsw.AddPod(pod3Name, volume2Spec, node2Name)
_, podAddErr = dsw.AddPod(pod3Name, volume2Spec, node2Name)
if podAddErr != nil {
t.Fatalf(
"AddPod failed for pod %q. Expected: <no error> Actual: <%v>",
pod3Name,
podAddErr)
}
// Act
volumesToAttach := dsw.GetVolumesToAttach()
// Assert
if len(volumesToAttach) != 2 {
t.Fatalf("len(volumesToAttach) Expected: <2> Actual: <%v>", len(volumesToAttach))
}
verifyVolumeToAttach(t, volumesToAttach, node1Name, generatedVolume1Name, string(volume1Name))
verifyVolumeToAttach(t, volumesToAttach, node2Name, generatedVolume2Name, string(volume2Name))
}
// Populates data struct with one volume/node entry.
// Calls SetDetachRequestTime twice and sleep maxWaitTime (1 second) in between
// The elapsed time returned from the first SetDetachRequestTime call should be smaller than maxWaitTime
// The elapsed time returned from the second SetDetachRequestTime call should be larger than maxWaitTime
func Test_SetDetachRequestTime_Positive(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
nodeName := types.NodeName("node-name")
devicePath := "fake/device/path"
generatedVolumeName, addErr := asw.AddVolumeNode(volumeSpec, nodeName, devicePath)
if addErr != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", addErr)
}
maxWaitTime := 1 * time.Second
etime, err := asw.SetDetachRequestTime(generatedVolumeName, nodeName)
if err != nil {
t.Fatalf("SetDetachRequestTime failed. Expected: <no error> Actual: <%v>", err)
}
if etime >= maxWaitTime {
t.Logf("SetDetachRequestTim Expected: <elapsed time %v is smaller than maxWaitTime %v> Actual <elapsed time is larger than maxWaitTime>", etime, maxWaitTime)
}
// Sleep and call SetDetachRequestTime again
time.Sleep(maxWaitTime)
etime, err = asw.SetDetachRequestTime(generatedVolumeName, nodeName)
if err != nil {
t.Fatalf("SetDetachRequestTime failed. Expected: <no error> Actual: <%v>", err)
}
if etime < maxWaitTime {
t.Fatalf("SetDetachRequestTim Expected: <elapsed time %v is larger than maxWaitTime %v> Actual <elapsed time is smaller>", etime, maxWaitTime)
}
}
// Populates data struct with one volume/node entry.
// Calls RemoveVolumeFromReportAsAttached
// Verifyies there is no valume as reported as attached
func Test_RemoveVolumeFromReportAsAttached(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
nodeName := types.NodeName("node-name")
devicePath := "fake/device/path"
generatedVolumeName, addErr := asw.AddVolumeNode(volumeSpec, nodeName, devicePath)
if addErr != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", addErr)
}
removeVolumeDetachErr := asw.RemoveVolumeFromReportAsAttached(generatedVolumeName, nodeName)
if removeVolumeDetachErr != nil {
t.Fatalf("RemoveVolumeFromReportAsAttached failed. Expected: <no error> Actual: <%v>", removeVolumeDetachErr)
}
reportAsAttachedVolumesMap := asw.GetVolumesToReportAttached()
volumes, exists := reportAsAttachedVolumesMap[nodeName]
if !exists {
t.Fatalf("MarkDesireToDetach_UnmarkDesireToDetach failed. Expected: <node %q exist> Actual: <node does not exist in the reportedAsAttached map", nodeName)
}
if len(volumes) > 0 {
t.Fatalf("len(reportAsAttachedVolumes) Expected: <0> Actual: <%v>", len(volumes))
}
}
// Populates data struct with one volume/node entry.
// Calls DeleteVolumeNode() to delete volume/node.
// Verifies no volume/node entries exists.
func Test_DeleteVolumeNode_Positive_VolumeExistsNodeExists(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
nodeName := "node-name"
devicePath := "fake/device/path"
generatedVolumeName, addErr := asw.AddVolumeNode(volumeSpec, nodeName, devicePath)
if addErr != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", addErr)
}
// Act
asw.DeleteVolumeNode(generatedVolumeName, nodeName)
// Assert
volumeNodeComboExists := asw.VolumeNodeExists(generatedVolumeName, nodeName)
if volumeNodeComboExists {
t.Fatalf("%q/%q volume/node combo exists, it should not.", generatedVolumeName, nodeName)
}
attachedVolumes := asw.GetAttachedVolumes()
if len(attachedVolumes) != 0 {
t.Fatalf("len(attachedVolumes) Expected: <0> Actual: <%v>", len(attachedVolumes))
}
}
func Test_NewGoRoutineMap_Positive_WaitWithExpBackoff(t *testing.T) {
// Test that Wait() really blocks until the last operation succeeds
// Arrange
grm := NewNestedPendingOperations(true /* exponentialBackOffOnError */)
volumeName := api.UniqueVolumeName("volume-name")
operation1DoneCh := make(chan interface{}, 0 /* bufferSize */)
operation1 := generateWaitFunc(operation1DoneCh)
err := grm.Run(volumeName, "" /* operationSubName */, operation1)
if err != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err)
}
// Act
waitDoneCh := make(chan interface{}, 1)
go func() {
grm.Wait()
waitDoneCh <- true
}()
// Finish the operation
operation1DoneCh <- true
// Assert
err = waitChannelWithTimeout(waitDoneCh, testTimeout)
if err != nil {
t.Fatalf("Error waiting for GoRoutineMap.Wait: %v", err)
}
}
// Populates data struct with one volume1/node1 entry.
// Calls VolumeNodeExists() with volume1/node2.
// Verifies requested entry does not exist, but populated entry does.
func Test_VolumeNodeExists_Positive_VolumeExistsNodeDoesntExist(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
node1Name := "node1-name"
node2Name := "node2-name"
devicePath := "fake/device/path"
generatedVolumeName, addErr := asw.AddVolumeNode(volumeSpec, node1Name, devicePath)
if addErr != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", addErr)
}
// Act
volumeNodeComboExists := asw.VolumeNodeExists(generatedVolumeName, node2Name)
// Assert
if volumeNodeComboExists {
t.Fatalf("%q/%q volume/node combo exists, it should not.", generatedVolumeName, node2Name)
}
attachedVolumes := asw.GetAttachedVolumes()
if len(attachedVolumes) != 1 {
t.Fatalf("len(attachedVolumes) Expected: <1> Actual: <%v>", len(attachedVolumes))
}
verifyAttachedVolume(t, attachedVolumes, generatedVolumeName, string(volumeName), node1Name, true /* expectedMountedByNode */, false /* expectNonZeroDetachRequestedTime */)
}
func Test_NewGoRoutineMap_Positive_SecondOpAfterFirstCompletesWithExpBackoff(t *testing.T) {
// Arrange
grm := NewNestedPendingOperations(true /* exponentialBackOffOnError */)
volumeName := api.UniqueVolumeName("volume-name")
operation1DoneCh := make(chan interface{}, 0 /* bufferSize */)
operation1 := generateCallbackFunc(operation1DoneCh)
err1 := grm.Run(volumeName, "" /* operationSubName */, operation1)
if err1 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err1)
}
operation2 := generateNoopFunc()
<-operation1DoneCh // Force operation1 to complete
// Act
err2 := retryWithExponentialBackOff(
time.Duration(initialOperationWaitTimeShort),
func() (bool, error) {
err := grm.Run(volumeName, "" /* operationSubName */, operation2)
if err != nil {
t.Logf("Warning: NewGoRoutine failed with %v. Will retry.", err)
return false, nil
}
return true, nil
},
)
// Assert
if err2 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err2)
}
}
// Populates data struct with one volume/node entry.
// Calls SetVolumeMountedByNode twice, first setting mounted to true then false.
// Verifies mountedByNode is false.
func Test_SetVolumeMountedByNode_Positive_UnsetWithInitialSet(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
nodeName := "node-name"
devicePath := "fake/device/path"
generatedVolumeName, addErr := asw.AddVolumeNode(volumeSpec, nodeName, devicePath)
if addErr != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", addErr)
}
// Act
setVolumeMountedErr1 := asw.SetVolumeMountedByNode(generatedVolumeName, nodeName, true /* mounted */)
setVolumeMountedErr2 := asw.SetVolumeMountedByNode(generatedVolumeName, nodeName, false /* mounted */)
// Assert
if setVolumeMountedErr1 != nil {
t.Fatalf("SetVolumeMountedByNode1 failed. Expected <no error> Actual: <%v>", setVolumeMountedErr1)
}
if setVolumeMountedErr2 != nil {
t.Fatalf("SetVolumeMountedByNode2 failed. Expected <no error> Actual: <%v>", setVolumeMountedErr2)
}
attachedVolumes := asw.GetAttachedVolumes()
if len(attachedVolumes) != 1 {
t.Fatalf("len(attachedVolumes) Expected: <1> Actual: <%v>", len(attachedVolumes))
}
verifyAttachedVolume(t, attachedVolumes, generatedVolumeName, string(volumeName), nodeName, false /* expectedMountedByNode */, false /* expectNonZeroDetachRequestedTime */)
}
// Populates data struct with one volume/node entry.
// Calls MarkDesireToDetach() once on volume/node entry.
// Calls AddVolumeNode() to re-add the same volume/node entry.
// Verifies mountedByNode is true and detachRequestedTime is reset to zero.
func Test_MarkDesireToDetach_Positive_MarkedAddVolumeNodeReset(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
nodeName := "node-name"
devicePath := "fake/device/path"
generatedVolumeName, addErr := asw.AddVolumeNode(volumeSpec, nodeName, devicePath)
if addErr != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", addErr)
}
// Act
_, markDesireToDetachErr := asw.MarkDesireToDetach(generatedVolumeName, nodeName)
generatedVolumeName, addErr = asw.AddVolumeNode(volumeSpec, nodeName, devicePath)
// Assert
if markDesireToDetachErr != nil {
t.Fatalf("MarkDesireToDetach failed. Expected: <no error> Actual: <%v>", markDesireToDetachErr)
}
if addErr != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", addErr)
}
// Assert
attachedVolumes := asw.GetAttachedVolumes()
if len(attachedVolumes) != 1 {
t.Fatalf("len(attachedVolumes) Expected: <1> Actual: <%v>", len(attachedVolumes))
}
verifyAttachedVolume(t, attachedVolumes, generatedVolumeName, string(volumeName), nodeName, true /* expectedMountedByNode */, false /* expectNonZeroDetachRequestedTime */)
}
func Test_GetAttachedVolumesForNode_Positive_OneVolumeTwoNodes(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
node1Name := "node1-name"
generatedVolumeName1, add1Err := asw.AddVolumeNode(volumeSpec, node1Name)
if add1Err != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", add1Err)
}
node2Name := "node2-name"
generatedVolumeName2, add2Err := asw.AddVolumeNode(volumeSpec, node2Name)
if add2Err != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", add2Err)
}
if generatedVolumeName1 != generatedVolumeName2 {
t.Fatalf(
"Generated volume names for the same volume should be the same but they are not: %q and %q",
generatedVolumeName1,
generatedVolumeName2)
}
// Act
attachedVolumes := asw.GetAttachedVolumesForNode(node1Name)
// Assert
if len(attachedVolumes) != 1 {
t.Fatalf("len(attachedVolumes) Expected: <1> Actual: <%v>", len(attachedVolumes))
}
verifyAttachedVolume(t, attachedVolumes, generatedVolumeName1, string(volumeName), node1Name, true /* expectedMountedByNode */, false /* expectNonZeroDetachRequestedTime */)
}
// Populates desiredStateOfWorld cache with one node/volume/pod tuple.
// Calls Run()
// Verifies there is one attach call and no detach calls.
func Test_Run_Positive_OneDesiredVolumeAttach(t *testing.T) {
// Arrange
volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
asw := cache.NewActualStateOfWorld(volumePluginMgr)
ad := operationexecutor.NewOperationExecutor(volumePluginMgr)
reconciler := NewReconciler(
reconcilerLoopPeriod, maxWaitForUnmountDuration, dsw, asw, ad)
podName := types.UniquePodName("pod-uid")
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
nodeName := "node-name"
dsw.AddNode(nodeName)
volumeExists := dsw.VolumeExists(volumeName, nodeName)
if volumeExists {
t.Fatalf(
"Volume %q/node %q should not exist, but it does.",
volumeName,
nodeName)
}
_, podErr := dsw.AddPod(podName, volumeSpec, nodeName)
if podErr != nil {
t.Fatalf("AddPod failed. Expected: <no error> Actual: <%v>", podErr)
}
// Act
go reconciler.Run(wait.NeverStop)
// Assert
waitForNewAttacherCallCount(t, 1 /* expectedCallCount */, fakePlugin)
waitForAttachCallCount(t, 1 /* expectedAttachCallCount */, fakePlugin)
verifyNewDetacherCallCount(t, true /* expectZeroNewDetacherCallCount */, fakePlugin)
}
// Calls AddVolumeNode() once.
// Verifies a single volume/node entry exists.
func Test_AddVolumeNode_Positive_NewVolumeNewNode(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
nodeName := "node-name"
// Act
generatedVolumeName, err := asw.AddVolumeNode(volumeSpec, nodeName)
// Assert
if err != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", err)
}
volumeNodeComboExists := asw.VolumeNodeExists(generatedVolumeName, nodeName)
if !volumeNodeComboExists {
t.Fatalf("%q/%q volume/node combo does not exist, it should.", generatedVolumeName, nodeName)
}
attachedVolumes := asw.GetAttachedVolumes()
if len(attachedVolumes) != 1 {
t.Fatalf("len(attachedVolumes) Expected: <1> Actual: <%v>", len(attachedVolumes))
}
verifyAttachedVolume(t, attachedVolumes, generatedVolumeName, string(volumeName), nodeName, true /* expectedMountedByNode */, false /* expectNonZeroDetachRequestedTime */)
}
func Test_NewGoRoutineMap_Positive_SecondOpAfterFirstPanicsWithExpBackoff(t *testing.T) {
// Arrange
grm := NewNestedPendingOperations(true /* exponentialBackOffOnError */)
volumeName := api.UniqueVolumeName("volume-name")
operation1 := generatePanicFunc()
err1 := grm.Run(volumeName, "" /* operationSubName */, operation1)
if err1 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err1)
}
operation2 := generateNoopFunc()
// Act
err2 := retryWithExponentialBackOff(
time.Duration(initialOperationWaitTimeLong), // Longer duration to accommodate for backoff
func() (bool, error) {
err := grm.Run(volumeName, "" /* operationSubName */, operation2)
if err != nil {
t.Logf("Warning: NewGoRoutine failed with %v. Will retry.", err)
return false, nil
}
return true, nil
},
)
// Assert
if err2 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err2)
}
}
// Populates data struct with new pod/volume/node.
// Calls VolumeExists() on that volume/node.
// Verifies volume/node exists, and one volume to attach.
func Test_VolumeExists_Positive_VolumeExistsNodeExists(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
dsw := NewDesiredStateOfWorld(volumePluginMgr)
nodeName := "node-name"
dsw.AddNode(nodeName)
podName := types.UniquePodName("pod-uid")
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
generatedVolumeName, _ := dsw.AddPod(podName, volumeSpec, nodeName)
// Act
volumeExists := dsw.VolumeExists(generatedVolumeName, nodeName)
// Assert
if !volumeExists {
t.Fatalf("Volume %q does not exist, it should.", generatedVolumeName)
}
volumesToAttach := dsw.GetVolumesToAttach()
if len(volumesToAttach) != 1 {
t.Fatalf("len(volumesToAttach) Expected: <1> Actual: <%v>", len(volumesToAttach))
}
verifyVolumeToAttach(t, volumesToAttach, nodeName, generatedVolumeName, string(volumeName))
}
// Populates desiredStateOfWorld cache with one node/volume/pod tuple.
// Calls Run()
// Verifies there is one attach call and no detach calls.
// Marks the node/volume as unmounted.
// Deletes the node/volume/pod tuple from desiredStateOfWorld cache.
// Verifies there is one detach call and no (new) attach calls.
func Test_Run_Positive_OneDesiredVolumeAttachThenDetachWithUnmountedVolume(t *testing.T) {
// Arrange
volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
asw := cache.NewActualStateOfWorld(volumePluginMgr)
fakeKubeClient := controllervolumetesting.CreateTestClient()
ad := operationexecutor.NewOperationExecutor(fakeKubeClient, volumePluginMgr)
nsu := statusupdater.NewFakeNodeStatusUpdater(false /* returnError */)
reconciler := NewReconciler(
reconcilerLoopPeriod, maxWaitForUnmountDuration, dsw, asw, ad, nsu)
podName := "pod-uid"
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
nodeName := "node-name"
dsw.AddNode(nodeName)
volumeExists := dsw.VolumeExists(volumeName, nodeName)
if volumeExists {
t.Fatalf(
"Volume %q/node %q should not exist, but it does.",
volumeName,
nodeName)
}
generatedVolumeName, podAddErr := dsw.AddPod(types.UniquePodName(podName), controllervolumetesting.NewPod(podName, podName), volumeSpec, nodeName)
if podAddErr != nil {
t.Fatalf("AddPod failed. Expected: <no error> Actual: <%v>", podAddErr)
}
// Act
ch := make(chan struct{})
go reconciler.Run(ch)
defer close(ch)
// Assert
waitForNewAttacherCallCount(t, 1 /* expectedCallCount */, fakePlugin)
verifyNewAttacherCallCount(t, false /* expectZeroNewAttacherCallCount */, fakePlugin)
waitForAttachCallCount(t, 1 /* expectedAttachCallCount */, fakePlugin)
verifyNewDetacherCallCount(t, true /* expectZeroNewDetacherCallCount */, fakePlugin)
waitForDetachCallCount(t, 0 /* expectedDetachCallCount */, fakePlugin)
// Act
dsw.DeletePod(types.UniquePodName(podName), generatedVolumeName, nodeName)
volumeExists = dsw.VolumeExists(generatedVolumeName, nodeName)
if volumeExists {
t.Fatalf(
"Deleted pod %q from volume %q/node %q. Volume should also be deleted but it still exists.",
podName,
generatedVolumeName,
nodeName)
}
asw.SetVolumeMountedByNode(generatedVolumeName, nodeName, true /* mounted */)
asw.SetVolumeMountedByNode(generatedVolumeName, nodeName, false /* mounted */)
// Assert
waitForNewDetacherCallCount(t, 1 /* expectedCallCount */, fakePlugin)
verifyNewAttacherCallCount(t, false /* expectZeroNewAttacherCallCount */, fakePlugin)
waitForAttachCallCount(t, 1 /* expectedAttachCallCount */, fakePlugin)
verifyNewDetacherCallCount(t, false /* expectZeroNewDetacherCallCount */, fakePlugin)
waitForDetachCallCount(t, 1 /* expectedDetachCallCount */, fakePlugin)
}
func TestGetMountedVolumesForPodAndGetVolumesInUse(t *testing.T) {
tmpDir, err := utiltesting.MkTmpdir("volumeManagerTest")
if err != nil {
t.Fatalf("can't make a temp dir: %v", err)
}
defer os.RemoveAll(tmpDir)
podManager := kubepod.NewBasicPodManager(podtest.NewFakeMirrorClient())
node, pod, pv, claim := createObjects()
kubeClient := fake.NewSimpleClientset(node, pod, pv, claim)
manager, err := newTestVolumeManager(tmpDir, podManager, kubeClient)
if err != nil {
t.Fatalf("Failed to initialize volume manager: %v", err)
}
stopCh := make(chan struct{})
go manager.Run(stopCh)
defer close(stopCh)
podManager.SetPods([]*api.Pod{pod})
// Fake node status update
go simulateVolumeInUseUpdate(
api.UniqueVolumeName(node.Status.VolumesAttached[0].Name),
stopCh,
manager)
err = manager.WaitForAttachAndMount(pod)
if err != nil {
t.Errorf("Expected success: %v", err)
}
expectedMounted := pod.Spec.Volumes[0].Name
actualMounted := manager.GetMountedVolumesForPod(types.UniquePodName(pod.ObjectMeta.UID))
if _, ok := actualMounted[expectedMounted]; !ok || (len(actualMounted) != 1) {
t.Errorf("Expected %v to be mounted to pod but got %v", expectedMounted, actualMounted)
}
expectedInUse := []api.UniqueVolumeName{api.UniqueVolumeName(node.Status.VolumesAttached[0].Name)}
actualInUse := manager.GetVolumesInUse()
if !reflect.DeepEqual(expectedInUse, actualInUse) {
t.Errorf("Expected %v to be in use but got %v", expectedInUse, actualInUse)
}
}
// Populates data struct with pod1/volume/node and pod2/volume/node.
// Calls DeleteNode() to delete the pod1/volume/node.
// Verifies volume still exists, and one volumes to attach.
func Test_DeletePod_Positive_2PodsExistNodeExistsVolumesExist(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
dsw := NewDesiredStateOfWorld(volumePluginMgr)
pod1Name := types.UniquePodName("pod1-uid")
pod2Name := types.UniquePodName("pod2-uid")
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
nodeName := "node-name"
dsw.AddNode(nodeName)
generatedVolumeName1, pod1AddErr := dsw.AddPod(pod1Name, volumeSpec, nodeName)
if pod1AddErr != nil {
t.Fatalf(
"AddPod failed for pod %q. Expected: <no error> Actual: <%v>",
pod1Name,
pod1AddErr)
}
generatedVolumeName2, pod2AddErr := dsw.AddPod(pod2Name, volumeSpec, nodeName)
if pod2AddErr != nil {
t.Fatalf(
"AddPod failed for pod %q. Expected: <no error> Actual: <%v>",
pod2Name,
pod2AddErr)
}
if generatedVolumeName1 != generatedVolumeName2 {
t.Fatalf(
"Generated volume names for the same volume should be the same but they are not: %q and %q",
generatedVolumeName1,
generatedVolumeName2)
}
volumeExists := dsw.VolumeExists(generatedVolumeName1, nodeName)
if !volumeExists {
t.Fatalf(
"Volume %q does not exist under node %q, it should.",
generatedVolumeName1,
nodeName)
}
// Act
dsw.DeletePod(pod1Name, generatedVolumeName1, nodeName)
// Assert
volumeExists = dsw.VolumeExists(generatedVolumeName1, nodeName)
if !volumeExists {
t.Fatalf(
"Volume %q under node %q should still exist, but it does not.",
generatedVolumeName1,
nodeName)
}
volumesToAttach := dsw.GetVolumesToAttach()
if len(volumesToAttach) != 1 {
t.Fatalf("len(volumesToAttach) Expected: <1> Actual: <%v>", len(volumesToAttach))
}
verifyVolumeToAttach(t, volumesToAttach, nodeName, generatedVolumeName1, string(volumeName))
}
func Test_NewGoRoutineMap_Positive_TwoOps(t *testing.T) {
// Arrange
grm := NewNestedPendingOperations(false /* exponentialBackOffOnError */)
volume1Name := api.UniqueVolumeName("volume1-name")
volume2Name := api.UniqueVolumeName("volume2-name")
operation := func() error { return nil }
// Act
err1 := grm.Run(volume1Name, "" /* operationSubName */, operation)
err2 := grm.Run(volume2Name, "" /* operationSubName */, operation)
// Assert
if err1 != nil {
t.Fatalf("NewGoRoutine %q failed. Expected: <no error> Actual: <%v>", volume1Name, err1)
}
if err2 != nil {
t.Fatalf("NewGoRoutine %q failed. Expected: <no error> Actual: <%v>", volume2Name, err2)
}
}
// Populates data struct with pod/volume/node1.
// Calls DeleteNode() to delete the pod/volume/node2.
// Verifies volume still exists, and one volumes to attach.
func Test_DeletePod_Positive_NodeDoesNotExist(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
dsw := NewDesiredStateOfWorld(volumePluginMgr)
podName := "pod-uid"
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
node1Name := "node1-name"
dsw.AddNode(node1Name)
generatedVolumeName, podAddErr := dsw.AddPod(types.UniquePodName(podName), controllervolumetesting.NewPod(podName, podName), volumeSpec, node1Name)
if podAddErr != nil {
t.Fatalf(
"AddPod failed for pod %q. Expected: <no error> Actual: <%v>",
podName,
podAddErr)
}
volumeExists := dsw.VolumeExists(generatedVolumeName, node1Name)
if !volumeExists {
t.Fatalf(
"Added pod %q to volume %q/node %q. Volume does not exist, it should.",
podName,
generatedVolumeName,
node1Name)
}
node2Name := "node2-name"
// Act
dsw.DeletePod(types.UniquePodName(podName), generatedVolumeName, node2Name)
// Assert
volumeExists = dsw.VolumeExists(generatedVolumeName, node1Name)
if !volumeExists {
t.Fatalf(
"Volume %q/node %q does not exist, it should.",
generatedVolumeName,
node1Name)
}
volumeExists = dsw.VolumeExists(generatedVolumeName, node2Name)
if volumeExists {
t.Fatalf(
"node %q exists, it should not.",
node2Name)
}
volumesToAttach := dsw.GetVolumesToAttach()
if len(volumesToAttach) != 1 {
t.Fatalf("len(volumesToAttach) Expected: <1> Actual: <%v>", len(volumesToAttach))
}
verifyVolumeToAttach(t, volumesToAttach, node1Name, generatedVolumeName, string(volumeName))
}
func Test_NewGoRoutineMap_Positive_SingleOpWithExpBackoff(t *testing.T) {
// Arrange
grm := NewNestedPendingOperations(true /* exponentialBackOffOnError */)
volumeName := api.UniqueVolumeName("volume-name")
operation := func() error { return nil }
// Act
err := grm.Run(volumeName, "" /* operationSubName */, operation)
// Assert
if err != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err)
}
}
// Calls AddVolumeNode() twice. Second time use a different node name.
// Verifies two volume/node entries exist with the same volumeSpec.
func Test_AddVolumeNode_Positive_ExistingVolumeNewNode(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
node1Name := "node1-name"
node2Name := "node2-name"
devicePath := "fake/device/path"
// Act
generatedVolumeName1, add1Err := asw.AddVolumeNode(volumeSpec, node1Name, devicePath)
generatedVolumeName2, add2Err := asw.AddVolumeNode(volumeSpec, node2Name, devicePath)
// Assert
if add1Err != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", add1Err)
}
if add2Err != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", add2Err)
}
if generatedVolumeName1 != generatedVolumeName2 {
t.Fatalf(
"Generated volume names for the same volume should be the same but they are not: %q and %q",
generatedVolumeName1,
generatedVolumeName2)
}
volumeNode1ComboExists := asw.VolumeNodeExists(generatedVolumeName1, node1Name)
if !volumeNode1ComboExists {
t.Fatalf("%q/%q volume/node combo does not exist, it should.", generatedVolumeName1, node1Name)
}
volumeNode2ComboExists := asw.VolumeNodeExists(generatedVolumeName1, node2Name)
if !volumeNode2ComboExists {
t.Fatalf("%q/%q volume/node combo does not exist, it should.", generatedVolumeName1, node2Name)
}
attachedVolumes := asw.GetAttachedVolumes()
if len(attachedVolumes) != 2 {
t.Fatalf("len(attachedVolumes) Expected: <2> Actual: <%v>", len(attachedVolumes))
}
verifyAttachedVolume(t, attachedVolumes, generatedVolumeName1, string(volumeName), node1Name, true /* expectedMountedByNode */, false /* expectNonZeroDetachRequestedTime */)
verifyAttachedVolume(t, attachedVolumes, generatedVolumeName1, string(volumeName), node2Name, true /* expectedMountedByNode */, false /* expectNonZeroDetachRequestedTime */)
}
func Test_NewGoRoutineMap_Positive_ThirdOpAfterFirstCompletesWithExpBackoff(t *testing.T) {
// Arrange
grm := NewNestedPendingOperations(true /* exponentialBackOffOnError */)
volumeName := api.UniqueVolumeName("volume-name")
operation1DoneCh := make(chan interface{}, 0 /* bufferSize */)
operation1 := generateWaitFunc(operation1DoneCh)
err1 := grm.Run(volumeName, "" /* operationSubName */, operation1)
if err1 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err1)
}
operation2 := generateNoopFunc()
operation3 := generateNoopFunc()
// Act
err2 := grm.Run(volumeName, "" /* operationSubName */, operation2)
// Assert
if err2 == nil {
t.Fatalf("NewGoRoutine did not fail. Expected: <Failed to create operation with name \"%s\". An operation with that name already exists.> Actual: <no error>", volumeName)
}
if !IsAlreadyExists(err2) {
t.Fatalf("NewGoRoutine did not return alreadyExistsError, got: %v", err2)
}
// Act
operation1DoneCh <- true // Force operation1 to complete
err3 := retryWithExponentialBackOff(
time.Duration(initialOperationWaitTimeShort),
func() (bool, error) {
err := grm.Run(volumeName, "" /* operationSubName */, operation3)
if err != nil {
t.Logf("Warning: NewGoRoutine failed with %v. Will retry.", err)
return false, nil
}
return true, nil
},
)
// Assert
if err3 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err3)
}
}
// Populates data struct with new pod/volume/node.
// Calls DeleteNode() to delete the pod/volume/node.
// Verifies volume no longer exists, and zero volumes to attach.
func Test_DeletePod_Positive_PodExistsNodeExistsVolumeExists(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
dsw := NewDesiredStateOfWorld(volumePluginMgr)
podName := types.UniquePodName("pod-uid")
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
nodeName := "node-name"
dsw.AddNode(nodeName)
generatedVolumeName, podAddErr := dsw.AddPod(podName, volumeSpec, nodeName)
if podAddErr != nil {
t.Fatalf(
"AddPod failed for pod %q. Expected: <no error> Actual: <%v>",
podName,
podAddErr)
}
volumeExists := dsw.VolumeExists(generatedVolumeName, nodeName)
if !volumeExists {
t.Fatalf(
"Added pod %q to volume %q/node %q. Volume does not exist, it should.",
podName,
generatedVolumeName,
nodeName)
}
// Act
dsw.DeletePod(podName, generatedVolumeName, nodeName)
// Assert
volumeExists = dsw.VolumeExists(generatedVolumeName, nodeName)
if volumeExists {
t.Fatalf(
"Deleted pod %q from volume %q/node %q. Volume should also be deleted but it still exists.",
podName,
generatedVolumeName,
nodeName)
}
volumesToAttach := dsw.GetVolumesToAttach()
if len(volumesToAttach) != 0 {
t.Fatalf("len(volumesToAttach) Expected: <0> Actual: <%v>", len(volumesToAttach))
}
}
// Calls VolumeNodeExists() on empty data struct.
// Verifies requested entry does not exist.
func Test_VolumeNodeExists_Positive_VolumeAndNodeDontExist(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueVolumeName("volume-name")
nodeName := "node-name"
// Act
volumeNodeComboExists := asw.VolumeNodeExists(volumeName, nodeName)
// Assert
if volumeNodeComboExists {
t.Fatalf("%q/%q volume/node combo exists, it should not.", volumeName, nodeName)
}
attachedVolumes := asw.GetAttachedVolumes()
if len(attachedVolumes) != 0 {
t.Fatalf("len(attachedVolumes) Expected: <0> Actual: <%v>", len(attachedVolumes))
}
}
// Calls VolumeExists() on some volume/node.
// Verifies volume/node do not exist, and zero volumes to attach.
func Test_VolumeExists_Positive_VolumeDoesntExistNodeDoesntExists(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
dsw := NewDesiredStateOfWorld(volumePluginMgr)
nodeName := "node-name"
volumeName := api.UniqueVolumeName("volume-name")
// Act
volumeExists := dsw.VolumeExists(volumeName, nodeName)
// Assert
if volumeExists {
t.Fatalf("Volume %q exists, it should not.", volumeName)
}
volumesToAttach := dsw.GetVolumesToAttach()
if len(volumesToAttach) != 0 {
t.Fatalf("len(volumesToAttach) Expected: <0> Actual: <%v>", len(volumesToAttach))
}
}
// Populates data struct with one volume/node entry.
// Verifies mountedByNode is true and DetachRequestedTime is zero.
func Test_SetVolumeMountedByNode_Positive_Set(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
nodeName := "node-name"
generatedVolumeName, addErr := asw.AddVolumeNode(volumeSpec, nodeName)
if addErr != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", addErr)
}
// Act: do not mark -- test default value
// Assert
attachedVolumes := asw.GetAttachedVolumes()
if len(attachedVolumes) != 1 {
t.Fatalf("len(attachedVolumes) Expected: <1> Actual: <%v>", len(attachedVolumes))
}
verifyAttachedVolume(t, attachedVolumes, generatedVolumeName, string(volumeName), nodeName, true /* expectedMountedByNode */, false /* expectNonZeroDetachRequestedTime */)
}
// Populates data struct with one volume/node entry.
// Calls MarkDesireToDetach() once on volume/node entry.
// Calls SetVolumeMountedByNode() twice, first setting mounted to true then false.
// Verifies mountedByNode is false and detachRequestedTime is NOT zero.
func Test_SetVolumeMountedByNode_Positive_UnsetWithInitialSetVerifyDetachRequestedTimePerserved(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueVolumeName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
nodeName := "node-name"
generatedVolumeName, addErr := asw.AddVolumeNode(volumeSpec, nodeName)
if addErr != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", addErr)
}
_, err := asw.MarkDesireToDetach(generatedVolumeName, nodeName)
if err != nil {
t.Fatalf("MarkDesireToDetach failed. Expected: <no error> Actual: <%v>", err)
}
expectedDetachRequestedTime := asw.GetAttachedVolumes()[0].DetachRequestedTime
// Act
setVolumeMountedErr1 := asw.SetVolumeMountedByNode(generatedVolumeName, nodeName, true /* mounted */)
setVolumeMountedErr2 := asw.SetVolumeMountedByNode(generatedVolumeName, nodeName, false /* mounted */)
// Assert
if setVolumeMountedErr1 != nil {
t.Fatalf("SetVolumeMountedByNode1 failed. Expected <no error> Actual: <%v>", setVolumeMountedErr1)
}
if setVolumeMountedErr2 != nil {
t.Fatalf("SetVolumeMountedByNode2 failed. Expected <no error> Actual: <%v>", setVolumeMountedErr2)
}
attachedVolumes := asw.GetAttachedVolumes()
if len(attachedVolumes) != 1 {
t.Fatalf("len(attachedVolumes) Expected: <1> Actual: <%v>", len(attachedVolumes))
}
verifyAttachedVolume(t, attachedVolumes, generatedVolumeName, string(volumeName), nodeName, false /* expectedMountedByNode */, true /* expectNonZeroDetachRequestedTime */)
if !expectedDetachRequestedTime.Equal(attachedVolumes[0].DetachRequestedTime) {
t.Fatalf("DetachRequestedTime changed. Expected: <%v> Actual: <%v>", expectedDetachRequestedTime, attachedVolumes[0].DetachRequestedTime)
}
}
// Calls MarkVolumeAsAttached() once to add volume, specifying a name --
// establishes that the supplied volume name is used to register the volume
// rather than the generated one.
// Verifies newly added volume exists in GetUnmountedVolumes()
// Verifies newly added volume doesn't exist in GetGloballyMountedVolumes()
func Test_MarkVolumeAsAttached_SuppliedVolumeName_Positive_NewVolume(t *testing.T) {
// Arrange
volumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
asw := NewActualStateOfWorld("mynode" /* nodeName */, volumePluginMgr)
pod := &api.Pod{
ObjectMeta: api.ObjectMeta{
Name: "pod1",
UID: "pod1uid",
},
Spec: api.PodSpec{
Volumes: []api.Volume{
{
Name: "volume-name",
VolumeSource: api.VolumeSource{
GCEPersistentDisk: &api.GCEPersistentDiskVolumeSource{
PDName: "fake-device1",
},
},
},
},
},
}
volumeSpec := &volume.Spec{Volume: &pod.Spec.Volumes[0]}
devicePath := "fake/device/path"
volumeName := api.UniqueVolumeName("this-would-never-be-a-volume-name")
// Act
err := asw.MarkVolumeAsAttached(volumeName, volumeSpec, "" /* nodeName */, devicePath)
// Assert
if err != nil {
t.Fatalf("MarkVolumeAsAttached failed. Expected: <no error> Actual: <%v>", err)
}
verifyVolumeExistsAsw(t, volumeName, true /* shouldExist */, asw)
verifyVolumeExistsInUnmountedVolumes(t, volumeName, asw)
verifyVolumeDoesntExistInGloballyMountedVolumes(t, volumeName, asw)
}