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Merge pull request #79104 from avorima/refactor_vol_resize_unit_tests
Refactor online volume resize unit tests
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Kubernetes Prow Robot
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commit
5c61d51a32
@ -569,97 +569,145 @@ func TestCreateVolumeSpec_Invalid_Block_VolumeMounts(t *testing.T) {
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func TestCheckVolumeFSResize(t *testing.T) {
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mode := v1.PersistentVolumeFilesystem
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pv := &v1.PersistentVolume{
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ObjectMeta: metav1.ObjectMeta{
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Name: "dswp-test-volume-name",
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},
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Spec: v1.PersistentVolumeSpec{
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PersistentVolumeSource: v1.PersistentVolumeSource{RBD: &v1.RBDPersistentVolumeSource{}},
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Capacity: volumeCapacity(1),
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ClaimRef: &v1.ObjectReference{Namespace: "ns", Name: "file-bound"},
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VolumeMode: &mode,
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},
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}
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pvc := &v1.PersistentVolumeClaim{
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Spec: v1.PersistentVolumeClaimSpec{
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VolumeName: "dswp-test-volume-name",
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Resources: v1.ResourceRequirements{
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Requests: volumeCapacity(1),
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},
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},
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Status: v1.PersistentVolumeClaimStatus{
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Phase: v1.ClaimBound,
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Capacity: volumeCapacity(1),
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},
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}
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dswp, fakePodManager, fakeDSW := createDswpWithVolume(t, pv, pvc)
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fakeASW := dswp.actualStateOfWorld
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// create pod
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containers := []v1.Container{
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setCapacity := func(pv *v1.PersistentVolume, pvc *v1.PersistentVolumeClaim, capacity int) {
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pv.Spec.Capacity = volumeCapacity(capacity)
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pvc.Spec.Resources.Requests = volumeCapacity(capacity)
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}
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testcases := []struct {
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resize func(*testing.T, *v1.PersistentVolume, *v1.PersistentVolumeClaim, *desiredStateOfWorldPopulator)
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verify func(*testing.T, []v1.UniqueVolumeName, v1.UniqueVolumeName)
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enableResize bool
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readOnlyVol bool
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}{
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{
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VolumeMounts: []v1.VolumeMount{
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{
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Name: "dswp-test-volume-name",
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MountPath: "/mnt",
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// No resize request for volume, volumes in ASW shouldn't be marked as fsResizeRequired
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resize: func(*testing.T, *v1.PersistentVolume, *v1.PersistentVolumeClaim, *desiredStateOfWorldPopulator) {
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},
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verify: func(t *testing.T, vols []v1.UniqueVolumeName, _ v1.UniqueVolumeName) {
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if len(vols) > 0 {
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t.Errorf("No resize request for any volumes, but found resize required volumes in ASW: %v", vols)
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}
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},
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enableResize: true,
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},
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{
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// Disable the feature gate, so volume shouldn't be marked as fsResizeRequired
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resize: func(_ *testing.T, pv *v1.PersistentVolume, pvc *v1.PersistentVolumeClaim, _ *desiredStateOfWorldPopulator) {
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setCapacity(pv, pvc, 2)
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},
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verify: func(t *testing.T, vols []v1.UniqueVolumeName, _ v1.UniqueVolumeName) {
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if len(vols) > 0 {
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t.Errorf("Feature gate disabled, but found resize required volumes in ASW: %v", vols)
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}
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},
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enableResize: false,
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},
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{
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// Make volume used as ReadOnly, so volume shouldn't be marked as fsResizeRequired
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resize: func(_ *testing.T, pv *v1.PersistentVolume, pvc *v1.PersistentVolumeClaim, _ *desiredStateOfWorldPopulator) {
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setCapacity(pv, pvc, 2)
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},
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verify: func(t *testing.T, vols []v1.UniqueVolumeName, _ v1.UniqueVolumeName) {
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if len(vols) > 0 {
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t.Errorf("volume mounted as ReadOnly, but found resize required volumes in ASW: %v", vols)
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}
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},
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readOnlyVol: true,
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enableResize: true,
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},
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{
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// Clear ASW, so volume shouldn't be marked as fsResizeRequired because they are not mounted
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resize: func(_ *testing.T, pv *v1.PersistentVolume, pvc *v1.PersistentVolumeClaim, dswp *desiredStateOfWorldPopulator) {
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setCapacity(pv, pvc, 2)
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clearASW(dswp.actualStateOfWorld, dswp.desiredStateOfWorld, t)
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},
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verify: func(t *testing.T, vols []v1.UniqueVolumeName, _ v1.UniqueVolumeName) {
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if len(vols) > 0 {
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t.Errorf("volume hasn't been mounted, but found resize required volumes in ASW: %v", vols)
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}
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},
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enableResize: true,
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},
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{
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// volume in ASW should be marked as fsResizeRequired
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resize: func(_ *testing.T, pv *v1.PersistentVolume, pvc *v1.PersistentVolumeClaim, _ *desiredStateOfWorldPopulator) {
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setCapacity(pv, pvc, 2)
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},
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verify: func(t *testing.T, vols []v1.UniqueVolumeName, volName v1.UniqueVolumeName) {
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if len(vols) == 0 {
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t.Fatalf("Request resize for volume, but volume in ASW hasn't been marked as fsResizeRequired")
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}
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if len(vols) != 1 {
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t.Errorf("Some unexpected volumes are marked as fsResizeRequired: %v", vols)
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}
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if vols[0] != volName {
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t.Fatalf("Mark wrong volume as fsResizeRequired: %s", vols[0])
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}
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},
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enableResize: true,
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},
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}
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for _, tc := range testcases {
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pv := &v1.PersistentVolume{
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ObjectMeta: metav1.ObjectMeta{
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Name: "dswp-test-volume-name",
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},
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Spec: v1.PersistentVolumeSpec{
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PersistentVolumeSource: v1.PersistentVolumeSource{RBD: &v1.RBDPersistentVolumeSource{}},
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Capacity: volumeCapacity(1),
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ClaimRef: &v1.ObjectReference{Namespace: "ns", Name: "file-bound"},
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VolumeMode: &mode,
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},
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}
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pvc := &v1.PersistentVolumeClaim{
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Spec: v1.PersistentVolumeClaimSpec{
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VolumeName: pv.Name,
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Resources: v1.ResourceRequirements{
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Requests: pv.Spec.Capacity,
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},
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},
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},
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}
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pod := createPodWithVolume("dswp-test-pod", "dswp-test-volume-name", "file-bound", containers)
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uniquePodName := types.UniquePodName(pod.UID)
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uniqueVolumeName := v1.UniqueVolumeName("fake-plugin/" + pod.Spec.Volumes[0].Name)
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Status: v1.PersistentVolumeClaimStatus{
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Phase: v1.ClaimBound,
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Capacity: pv.Spec.Capacity,
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},
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}
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fakePodManager.AddPod(pod)
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// Fill the dsw to contains volumes and pods.
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dswp.findAndAddNewPods()
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reconcileASW(fakeASW, fakeDSW, t)
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dswp, fakePodManager, fakeDSW := createDswpWithVolume(t, pv, pvc)
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fakeASW := dswp.actualStateOfWorld
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// No resize request for volume, volumes in ASW shouldn't be marked as fsResizeRequired.
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defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ExpandInUsePersistentVolumes, true)()
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resizeRequiredVolumes := reprocess(dswp, uniquePodName, fakeDSW, fakeASW)
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if len(resizeRequiredVolumes) > 0 {
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t.Fatalf("No resize request for any volumes, but found resize required volumes in ASW: %v", resizeRequiredVolumes)
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}
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// create pod
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containers := []v1.Container{
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{
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VolumeMounts: []v1.VolumeMount{
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{
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Name: pv.Name,
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MountPath: "/mnt",
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ReadOnly: tc.readOnlyVol,
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},
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},
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},
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}
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pod := createPodWithVolume("dswp-test-pod", "dswp-test-volume-name", "file-bound", containers)
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uniquePodName := types.UniquePodName(pod.UID)
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uniqueVolumeName := v1.UniqueVolumeName("fake-plugin/" + pod.Spec.Volumes[0].Name)
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// Add a resize request to volume.
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pv.Spec.Capacity = volumeCapacity(2)
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pvc.Spec.Resources.Requests = volumeCapacity(2)
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fakePodManager.AddPod(pod)
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// Fill the dsw to contains volumes and pods.
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dswp.findAndAddNewPods()
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reconcileASW(fakeASW, fakeDSW, t)
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// Disable the feature gate, so volume shouldn't be marked as fsResizeRequired.
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defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ExpandInUsePersistentVolumes, false)()
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resizeRequiredVolumes = reprocess(dswp, uniquePodName, fakeDSW, fakeASW)
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if len(resizeRequiredVolumes) > 0 {
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t.Fatalf("Feature gate disabled, but found resize required volumes in ASW: %v", resizeRequiredVolumes)
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}
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func() {
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defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ExpandInUsePersistentVolumes, tc.enableResize)()
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// Make volume used as ReadOnly, so volume shouldn't be marked as fsResizeRequired.
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defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ExpandInUsePersistentVolumes, true)()
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pod.Spec.Containers[0].VolumeMounts[0].ReadOnly = true
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resizeRequiredVolumes = reprocess(dswp, uniquePodName, fakeDSW, fakeASW)
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if len(resizeRequiredVolumes) > 0 {
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t.Fatalf("volume mounted as ReadOnly, but found resize required volumes in ASW: %v", resizeRequiredVolumes)
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}
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tc.resize(t, pv, pvc, dswp)
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// Clear ASW, so volume shouldn't be marked as fsResizeRequired because they are not mounted.
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pod.Spec.Containers[0].VolumeMounts[0].ReadOnly = false
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clearASW(fakeASW, fakeDSW, t)
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resizeRequiredVolumes = reprocess(dswp, uniquePodName, fakeDSW, fakeASW)
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if len(resizeRequiredVolumes) > 0 {
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t.Fatalf("volume hasn't been mounted, but found resize required volumes in ASW: %v", resizeRequiredVolumes)
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}
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resizeRequiredVolumes := reprocess(dswp, uniquePodName, fakeDSW, fakeASW)
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// volume in ASW should be marked as fsResizeRequired.
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reconcileASW(fakeASW, fakeDSW, t)
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resizeRequiredVolumes = reprocess(dswp, uniquePodName, fakeDSW, fakeASW)
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if len(resizeRequiredVolumes) == 0 {
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t.Fatalf("Request resize for volume, but volume in ASW hasn't been marked as fsResizeRequired")
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}
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if len(resizeRequiredVolumes) != 1 {
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t.Fatalf("Some unexpected volumes are marked as fsResizeRequired: %v", resizeRequiredVolumes)
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}
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if resizeRequiredVolumes[0] != uniqueVolumeName {
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t.Fatalf("Mark wrong volume as fsResizeRequired: %s", resizeRequiredVolumes[0])
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tc.verify(t, resizeRequiredVolumes, uniqueVolumeName)
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}()
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}
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}
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