defer destroyFunc()

	// cached object has old UID
	oldPod, err := registry.Create(ctx, pod, rest.ValidateAllObjectFunc, &metav1.CreateOptions{})
	if err != nil {
		t.Fatal(err)
	}
	registry.Storage.Storage = &staleGuaranteedUpdateStorage{Interface: registry.Storage.Storage, cachedObj: oldPod}

	// delete and re-create the same object with new UID

			for _, oldTestCase := range testCases {
				newPod := testCase.pod.DeepCopy()
				newPod.ResourceVersion = "1"

				oldPod := oldTestCase.pod.DeepCopy()
				oldPod.ResourceVersion = "1"
				oldPod.Name = newPod.Name

				errs := ValidatePodStatusUpdate(newPod, oldPod, PodValidationOptions{})

				if len(errs) == 0 && testCase.expectError {

}

func TestForceUpdateIfOlder(t *testing.T) {
	ctx := context.Background()
	runtime := &ctest.FakeRuntime{}
	cache := NewTestRuntimeCache(runtime)

	// Cache old pods.
	oldpods := []*ctest.FakePod{{Pod: &Pod{ID: "1111"}}}
	runtime.PodList = oldpods
	cache.UpdateCacheWithLock()

	// Update the runtime to new pods.
	newpods := []*ctest.FakePod{{Pod: &Pod{ID: "1111"}}, {Pod: &Pod{ID: "2222"}}, {Pod: &Pod{ID: "3333"}}}

func (c *Controller) deletePod(obj interface{}) {
	pod := endpointsliceutil.GetPodFromDeleteAction(obj)
	if pod != nil {
		c.addPod(pod)
	}
}

func (c *Controller) addNode() {
	c.topologyQueue.Add(topologyQueueItemKey)
}

func (c *Controller) updateNode(old, cur interface{}) {
	oldNode := old.(*v1.Node)
	curNode := cur.(*v1.Node)

	newJob := obj.(*batch.Job)
	oldJob := old.(*batch.Job)
	newJob.Spec = oldJob.Spec
}

func (jobStatusStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
	newJob := obj.(*batch.Job)
	oldJob := old.(*batch.Job)

	opts := getStatusValidationOptions(newJob, oldJob)
	return batchvalidation.ValidateJobUpdateStatus(newJob, oldJob, opts)
}

			old := tc.oldNode.DeepCopy()
			// old node  should never be changed
			if !reflect.DeepEqual(tc.oldNode, old) {
				t.Errorf("%v: old node changed: %v", tc.name, cmp.Diff(tc.oldNode, old))
			}

			if !reflect.DeepEqual(tc.node, tc.compareNode) {
				t.Errorf("%v: unexpected node spec: %v", tc.name, cmp.Diff(tc.node, tc.compareNode))
			}
		}()
	}
}
func TestValidateUpdate(t *testing.T) {

		pods = make(map[types.UID]*v1.Pod)
	}

	// updatePodFunc is the local function which updates the pod cache *oldPods* with new pods *newPods*.
	// After updated, new pod will be stored in the pod cache *pods*.
	// Notice that *pods* and *oldPods* could be the same cache.
	updatePodsFunc := func(newPods []*v1.Pod, oldPods, pods map[types.UID]*v1.Pod) {
		filtered := filterInvalidPods(newPods, source, s.recorder)
		for _, ref := range filtered {

	dsw.AddNode(nodeName)
	generatedVolumeName1, pod1AddErr := dsw.AddPod(types.UniquePodName(pod1Name), controllervolumetesting.NewPod(pod1Name, pod1Name), volumeSpec, nodeName)
	if pod1AddErr != nil {
		t.Fatalf(
			"AddPod failed for pod %q. Expected: <no error> Actual: <%v>",
			pod1Name,
			pod1AddErr)
	}

		newObj interface{}
	}{
		{
			name:   "pod updated with the same UID",
			oldObj: withPodName(podWithPort("oldUID", nodeName, 80), "pod"),
			newObj: withPodName(podWithPort("oldUID", nodeName, 8080), "pod"),
		},
		{
			name:   "pod updated with different UIDs",
			oldObj: withPodName(podWithPort("oldUID", nodeName, 80), "pod"),
			newObj: withPodName(podWithPort("newUID", nodeName, 8080), "pod"),
		},
	}

		Patch(context.TODO(), oldPVC.Name, types.StrategicMergePatchType, patchBytes, metav1.PatchOptions{}, "status")
	if updateErr != nil {
		return oldPVC, fmt.Errorf("patchPVCStatus failed to patch PVC %q: %v", oldPVC.Name, updateErr)
	}
	return updatedClaim, nil
}

func createPVCPatch(
	oldPVC *v1.PersistentVolumeClaim,
	newPVC *v1.PersistentVolumeClaim, addResourceVersionCheck bool) ([]byte, error) {