// 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, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueDeviceName("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
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_MarkDesireToDetach_Positive_MarkedVerifySafeToDetachPreserved(t *testing.T) {
// Arrange
volumePluginMgr, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := "volume-name"
volumeSpec := controllervolumetesting.GetTestVolumeSpec(volumeName, volumeName)
nodeName := "node-name"
generatedVolumeName, addErr := asw.AddVolumeNode(volumeSpec, nodeName)
if addErr != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", addErr)
}
markSafeToDetachErr := asw.MarkVolumeNodeSafeToDetach(generatedVolumeName, nodeName)
if markSafeToDetachErr != nil {
t.Fatalf("MarkVolumeNodeSafeToDetach failed. Expected <no error> Actual: <%v>", markSafeToDetachErr)
}
// Act
_, markDesireToDetachErr := asw.MarkDesireToDetach(generatedVolumeName, nodeName)
// Assert
if markDesireToDetachErr != nil {
t.Fatalf("MarkDesireToDetach failed. Expected: <no error> Actual: <%v>", markDesireToDetachErr)
}
// Assert
attachedVolumes := asw.GetAttachedVolumes()
if len(attachedVolumes) != 1 {
t.Fatalf("len(attachedVolumes) Expected: <1> Actual: <%v>", len(attachedVolumes))
}
verifyAttachedVolume(t, attachedVolumes, generatedVolumeName, volumeName, nodeName, true /* expectedSafeToDetach */, true /* expectNonZeroDetachRequestedTime */)
}
// 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, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueDeviceName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
node1Name := "node1-name"
node2Name := "node2-name"
generatedVolumeName, addErr := asw.AddVolumeNode(volumeSpec, node1Name)
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 */)
}
// 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, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := NewDesiredStateOfWorld(volumePluginMgr)
nodeName := "node-name"
dsw.AddNode(nodeName)
podName := "pod-name"
volumeName := api.UniqueDeviceName("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 data struct with one volume/node entry.
// Calls SetVolumeMountedByNode twice, first setting mounted to true then false.
// Calls AddVolumeNode to readd the same volume/node.
// Verifies mountedByNode is false and detachRequestedTime is zero.
func Test_SetVolumeMountedByNode_Positive_UnsetWithInitialSetAddVolumeNodeNotReset(t *testing.T) {
// Arrange
volumePluginMgr, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueDeviceName("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
setVolumeMountedErr1 := asw.SetVolumeMountedByNode(generatedVolumeName, nodeName, true /* mounted */)
setVolumeMountedErr2 := asw.SetVolumeMountedByNode(generatedVolumeName, nodeName, false /* mounted */)
generatedVolumeName, addErr = asw.AddVolumeNode(volumeSpec, nodeName)
// 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)
}
if addErr != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", addErr)
}
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 a single node.
// Calls DeleteNode() to delete the node.
// Verifies node no longer exists, and zero volumes to attach.
func Test_DeleteNode_Positive_NodeExists(t *testing.T) {
// Arrange
volumePluginMgr, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := NewDesiredStateOfWorld(volumePluginMgr)
nodeName := "node-name"
dsw.AddNode(nodeName)
// Act
err := dsw.DeleteNode(nodeName)
// Assert
if err != nil {
t.Fatalf("DeleteNode failed. Expected: <no error> Actual: <%v>", err)
}
nodeExists := dsw.NodeExists(nodeName)
if nodeExists {
t.Fatalf("Deleted node %q still exists, it should not.", nodeName)
}
volumesToAttach := dsw.GetVolumesToAttach()
if len(volumesToAttach) != 0 {
t.Fatalf("len(volumesToAttach) Expected: <0> Actual: <%v>", len(volumesToAttach))
}
}
func Test_AddVolumeNode_Positive_NewVolumeNewNode(t *testing.T) {
// Arrange
volumePluginMgr, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := "volume-name"
volumeSpec := controllervolumetesting.GetTestVolumeSpec(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, volumeName, nodeName, false /* expectedSafeToDetach */, 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 := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
asw := cache.NewActualStateOfWorld(volumePluginMgr)
ad := attacherdetacher.NewAttacherDetacher(volumePluginMgr)
reconciler := NewReconciler(
reconcilerLoopPeriod, maxWaitForUnmountDuration, dsw, asw, ad)
podName := "pod-name"
volumeName := api.UniqueDeviceName("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)
}
// 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, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueDeviceName("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
_, markDesireToDetachErr := asw.MarkDesireToDetach(generatedVolumeName, nodeName)
generatedVolumeName, addErr = asw.AddVolumeNode(volumeSpec, nodeName)
// 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, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueDeviceName("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 */)
}
// Calls AddNode() once.
// Verifies node exists.
// Calls AddNode() again with the same node.
// Verifies node exists, and zero volumes to attach.
func Test_AddNode_Positive_ExistingNode(t *testing.T) {
// Arrange
volumePluginMgr, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := NewDesiredStateOfWorld(volumePluginMgr)
nodeName := "node-name"
// Act
dsw.AddNode(nodeName)
// Assert
nodeExists := dsw.NodeExists(nodeName)
if !nodeExists {
t.Fatalf("Added node %q does not exist, it should.", nodeName)
}
// Act
dsw.AddNode(nodeName)
// Assert
nodeExists = dsw.NodeExists(nodeName)
if !nodeExists {
t.Fatalf("Added node %q does not exist, it should.", nodeName)
}
volumesToAttach := dsw.GetVolumesToAttach()
if len(volumesToAttach) != 0 {
t.Fatalf("len(volumesToAttach) Expected: <0> Actual: <%v>", len(volumesToAttach))
}
}
// 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, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := NewDesiredStateOfWorld(volumePluginMgr)
nodeName := "node-name"
dsw.AddNode(nodeName)
podName := "pod-name"
volume1Name := api.UniqueDeviceName("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.UniqueDeviceName("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 volume/node entries (different node and volume).
// Calls GetAttachedVolumes() to get list of entries.
// Verifies both volume/node entries are returned.
func Test_GetAttachedVolumes_Positive_TwoVolumeTwoNodes(t *testing.T) {
// Arrange
volumePluginMgr, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
asw := NewActualStateOfWorld(volumePluginMgr)
volume1Name := api.UniqueDeviceName("volume1-name")
volume1Spec := controllervolumetesting.GetTestVolumeSpec(string(volume1Name), volume1Name)
node1Name := "node1-name"
generatedVolumeName1, add1Err := asw.AddVolumeNode(volume1Spec, node1Name)
if add1Err != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", add1Err)
}
volume2Name := api.UniqueDeviceName("volume2-name")
volume2Spec := controllervolumetesting.GetTestVolumeSpec(string(volume2Name), volume2Name)
node2Name := "node2-name"
generatedVolumeName2, add2Err := asw.AddVolumeNode(volume2Spec, node2Name)
if add2Err != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", add2Err)
}
// Act
attachedVolumes := asw.GetAttachedVolumes()
// Assert
if len(attachedVolumes) != 2 {
t.Fatalf("len(attachedVolumes) Expected: <2> Actual: <%v>", len(attachedVolumes))
}
verifyAttachedVolume(t, attachedVolumes, generatedVolumeName1, string(volume1Name), node1Name, true /* expectedMountedByNode */, false /* expectNonZeroDetachRequestedTime */)
verifyAttachedVolume(t, attachedVolumes, generatedVolumeName2, string(volume2Name), node2Name, true /* expectedMountedByNode */, false /* expectNonZeroDetachRequestedTime */)
}
// 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, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := NewDesiredStateOfWorld(volumePluginMgr)
pod1Name := "pod1-name"
pod2Name := "pod2-name"
volumeName := api.UniqueDeviceName("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_Run_Positive_OneDesiredVolumeAttachThenDetachWithMarkVolume(t *testing.T) {
// Arrange
volumePluginMgr, fakePlugin := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
asw := cache.NewActualStateOfWorld(volumePluginMgr)
ad := attacherdetacher.NewAttacherDetacher(volumePluginMgr)
reconciler := NewReconciler(
reconcilerLoopPeriod, maxSafeToDetachDuration, dsw, asw, ad)
podName := "pod-name"
volumeName := "volume-name"
volumeSpec := controllervolumetesting.GetTestVolumeSpec(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(podName, volumeSpec, nodeName)
if podAddErr != nil {
t.Fatalf("AddPod failed. Expected: <no error> Actual: <%v>", podAddErr)
}
// Act
go reconciler.Run(wait.NeverStop)
// 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(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.MarkVolumeNodeSafeToDetach(generatedVolumeName, nodeName)
// Assert -- Marked SafeToDetach
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)
}
// Calls GetAttachedVolumes() on empty data struct.
// Verifies no volume/node entries are returned.
func Test_GetAttachedVolumes_Positive_NoVolumesOrNodes(t *testing.T) {
// Arrange
volumePluginMgr, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
asw := NewActualStateOfWorld(volumePluginMgr)
// Act
attachedVolumes := asw.GetAttachedVolumes()
// Assert
if len(attachedVolumes) != 0 {
t.Fatalf("len(attachedVolumes) Expected: <0> Actual: <%v>", len(attachedVolumes))
}
}
// Calls GetVolumesToAttach()
// Verifies zero volumes to attach.
func Test_GetVolumesToAttach_Positive_NoNodes(t *testing.T) {
// Arrange
volumePluginMgr, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := NewDesiredStateOfWorld(volumePluginMgr)
// Act
volumesToAttach := dsw.GetVolumesToAttach()
// Assert
if len(volumesToAttach) > 0 {
t.Fatalf("len(volumesToAttach) Expected: <0> Actual: <%v>", len(volumesToAttach))
}
}
func Test_DeletePod_Positive_VolumeDoesNotExist(t *testing.T) {
// Arrange
volumePluginMgr, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := NewDesiredStateOfWorld(volumePluginMgr)
podName := "pod-name"
volume1Name := "volume1-name"
volume1Spec := controllervolumetesting.GetTestVolumeSpec(volume1Name, volume1Name)
nodeName := "node-name"
dsw.AddNode(nodeName)
generatedVolume1Name, podAddErr := dsw.AddPod(podName, volume1Spec, nodeName)
if podAddErr != nil {
t.Fatalf(
"AddPod failed for pod %q. Expected: <no error> Actual: <%v>",
podName,
podAddErr)
}
volumeExists := dsw.VolumeExists(generatedVolume1Name, nodeName)
if !volumeExists {
t.Fatalf(
"Added pod %q to volume %q/node %q. Volume does not exist, it should.",
podName,
generatedVolume1Name,
nodeName)
}
volume2Name := "volume2-name"
// Act
dsw.DeletePod(podName, volume2Name, nodeName)
// Assert
volumeExists = dsw.VolumeExists(generatedVolume1Name, nodeName)
if !volumeExists {
t.Fatalf(
"Volume %q/node %q does not exist, it should.",
generatedVolume1Name,
nodeName)
}
volumeExists = dsw.VolumeExists(volume2Name, nodeName)
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, 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, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := NewDesiredStateOfWorld(volumePluginMgr)
node1Name := "node1-name"
pod1Name := "pod1-name"
volume1Name := api.UniqueDeviceName("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 := "pod2-name"
volume2Name := api.UniqueDeviceName("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 := "pod3-name"
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))
}
// 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, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueDeviceName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
node1Name := "node1-name"
node2Name := "node2-name"
// Act
generatedVolumeName1, add1Err := asw.AddVolumeNode(volumeSpec, node1Name)
generatedVolumeName2, add2Err := asw.AddVolumeNode(volumeSpec, node2Name)
// 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 */)
}
// Populates data struct with two nodes.
// Calls GetVolumesToAttach()
// Verifies zero volumes to attach.
func Test_GetVolumesToAttach_Positive_TwoNodes(t *testing.T) {
// Arrange
volumePluginMgr, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := NewDesiredStateOfWorld(volumePluginMgr)
node1Name := "node1-name"
node2Name := "node2-name"
dsw.AddNode(node1Name)
dsw.AddNode(node2Name)
// Act
volumesToAttach := dsw.GetVolumesToAttach()
// Assert
if len(volumesToAttach) != 0 {
t.Fatalf("len(volumesToAttach) Expected: <0> Actual: <%v>", len(volumesToAttach))
}
}
func Test_DeleteVolumeNode_Positive_TwoNodesOneDeleted(t *testing.T) {
// Arrange
volumePluginMgr, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := "volume-name"
volumeSpec := controllervolumetesting.GetTestVolumeSpec(volumeName, volumeName)
node1Name := "node1-name"
node2Name := "node2-name"
generatedVolumeName1, add1Err := asw.AddVolumeNode(volumeSpec, node1Name)
if add1Err != nil {
t.Fatalf("AddVolumeNode failed. Expected: <no error> Actual: <%v>", add1Err)
}
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
asw.DeleteVolumeNode(generatedVolumeName1, node1Name)
// Assert
volumeNodeComboExists := asw.VolumeNodeExists(generatedVolumeName1, node1Name)
if volumeNodeComboExists {
t.Fatalf("%q/%q volume/node combo exists, it should not.", generatedVolumeName1, node1Name)
}
volumeNodeComboExists = asw.VolumeNodeExists(generatedVolumeName1, node2Name)
if !volumeNodeComboExists {
t.Fatalf("%q/%q volume/node combo does not exist, it should.", generatedVolumeName1, node2Name)
}
attachedVolumes := asw.GetAttachedVolumes()
if len(attachedVolumes) != 1 {
t.Fatalf("len(attachedVolumes) Expected: <1> Actual: <%v>", len(attachedVolumes))
}
verifyAttachedVolume(t, attachedVolumes, generatedVolumeName1, volumeName, node2Name, false /* expectedSafeToDetach */, false /* expectNonZeroDetachRequestedTime */)
}
// Calls Run()
// Verifies there are no calls to attach or detach.
func Test_Run_Positive_DoNothing(t *testing.T) {
// Arrange
volumePluginMgr, fakePlugin := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
asw := cache.NewActualStateOfWorld(volumePluginMgr)
ad := attacherdetacher.NewAttacherDetacher(volumePluginMgr)
reconciler := NewReconciler(
reconcilerLoopPeriod, maxWaitForUnmountDuration, dsw, asw, ad)
// Act
go reconciler.Run(wait.NeverStop)
// Assert
waitForNewAttacherCallCount(t, 0 /* expectedCallCount */, fakePlugin)
verifyNewAttacherCallCount(t, true /* expectZeroNewAttacherCallCount */, fakePlugin)
verifyNewDetacherCallCount(t, true /* expectZeroNewDetacherCallCount */, fakePlugin)
waitForAttachCallCount(t, 0 /* expectedAttachCallCount */, fakePlugin)
waitForDetachCallCount(t, 0 /* expectedDetachCallCount */, fakePlugin)
}
// 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, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := NewDesiredStateOfWorld(volumePluginMgr)
podName := "pod-name"
volumeName := api.UniqueDeviceName("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 NodeExists() on random node.
// Verifies node does not exist, and no volumes to attach.
func Test_NodeExists_Positive_NodeExists(t *testing.T) {
// Arrange
volumePluginMgr, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := NewDesiredStateOfWorld(volumePluginMgr)
notAddedNodeName := "node-not-added-name"
// Act
notAddedNodeExists := dsw.NodeExists(notAddedNodeName)
// Assert
if notAddedNodeExists {
t.Fatalf("Node %q exists, it should not.", notAddedNodeName)
}
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, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := api.UniqueDeviceName("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, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := NewDesiredStateOfWorld(volumePluginMgr)
nodeName := "node-name"
volumeName := api.UniqueDeviceName("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 a single node no volume.
// Calls AddPod() with the same node and new pod/volume.
// Verifies node/volume exists, and 1 volumes to attach.
func Test_AddPod_Positive_NewPodNodeExistsVolumeDoesntExist(t *testing.T) {
// Arrange
volumePluginMgr, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := NewDesiredStateOfWorld(volumePluginMgr)
podName := "pod-name"
volumeName := api.UniqueDeviceName("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)
}
// Act
generatedVolumeName, podErr := dsw.AddPod(podName, volumeSpec, nodeName)
// Assert
if podErr != nil {
t.Fatalf("AddPod failed. Expected: <no error> Actual: <%v>", podErr)
}
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)
}
volumesToAttach := dsw.GetVolumesToAttach()
if len(volumesToAttach) != 1 {
t.Fatalf("len(volumesToAttach) Expected: <1> Actual: <%v>", len(volumesToAttach))
}
verifyVolumeToAttach(t, volumesToAttach, nodeName, generatedVolumeName, string(volumeName))
}
func Test_GetAttachedVolumes_Positive_OneVolumeOneNode(t *testing.T) {
// Arrange
volumePluginMgr, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
asw := NewActualStateOfWorld(volumePluginMgr)
volumeName := "volume-name"
volumeSpec := controllervolumetesting.GetTestVolumeSpec(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
attachedVolumes := asw.GetAttachedVolumes()
// Assert
if len(attachedVolumes) != 1 {
t.Fatalf("len(attachedVolumes) Expected: <1> Actual: <%v>", len(attachedVolumes))
}
verifyAttachedVolume(t, attachedVolumes, generatedVolumeName, volumeName, nodeName, false /* expectedSafeToDetach */, false /* expectNonZeroDetachRequestedTime */)
}
// Populates data struct with new pod/volume/node.
// Calls DeleteNode() to delete the node.
// Verifies call fails because node still contains child volumes.
func Test_DeleteNode_Negative_NodeExistsHasChildVolumes(t *testing.T) {
// Arrange
volumePluginMgr, _ := controllervolumetesting.GetTestVolumePluginMgr((t))
dsw := NewDesiredStateOfWorld(volumePluginMgr)
nodeName := "node-name"
dsw.AddNode(nodeName)
podName := "pod-name"
volumeName := api.UniqueDeviceName("volume-name")
volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
generatedVolumeName, podAddErr := dsw.AddPod(podName, volumeSpec, nodeName)
if podAddErr != nil {
t.Fatalf(
"AddPod failed for pod %q. Expected: <no error> Actual: <%v>",
podName,
podAddErr)
}
// Act
err := dsw.DeleteNode(nodeName)
// Assert
if err == nil {
t.Fatalf("DeleteNode did not fail. Expected: <\"failed to delete node...the node still contains volumes in its list of volumes to attach\"> Actual: <no error>")
}
nodeExists := dsw.NodeExists(nodeName)
if !nodeExists {
t.Fatalf("Node %q no longer exists, it should.", nodeName)
}
volumesToAttach := dsw.GetVolumesToAttach()
if len(volumesToAttach) != 1 {
t.Fatalf("len(volumesToAttach) Expected: <1> Actual: <%v>", len(volumesToAttach))
}
verifyVolumeToAttach(t, volumesToAttach, nodeName, generatedVolumeName, string(volumeName))
}