ctx := genericapirequest.NewDefaultContext()
		resourceClassParameters := resourceClassParameters.DeepCopy()
		newObj := resourceClassParameters.DeepCopy()
		newObj.Name += "-2"
		newObj.ResourceVersion = "4"

		Strategy.PrepareForUpdate(ctx, newObj, resourceClassParameters)
		errs := Strategy.ValidateUpdate(ctx, newObj, resourceClassParameters)
		if len(errs) == 0 {
			t.Errorf("expected a validation error")
		}
	})

	verify(ktesting.WithStep(tCtx, "after nop add"), cache, key, newObj, newObj)
	informer.add(nil)
	verify(ktesting.WithStep(tCtx, "after nil add"), cache, key, newObj, newObj)
	informer.update(oldObj)
	verify(ktesting.WithStep(tCtx, "after nop update"), cache, key, newObj, newObj)
	informer.update(nil)
	verify(ktesting.WithStep(tCtx, "after nil update"), cache, key, newObj, newObj)
	informer.delete(nil)

		pod            *v1.Pod
		oldObj, newObj interface{}
		expectedHint   framework.QueueingHint
		expectedErr    bool
	}{
		{
			name:         "backoff-wrong-new-object",
			pod:          &v1.Pod{},
			newObj:       "not-a-node",
			expectedHint: framework.Queue,
			expectedErr:  true,
		},
		{
			name: "backoff-wrong-old-object",
			pod:  &v1.Pod{},
			newObj: &v1.Node{
				Spec: v1.NodeSpec{

	newObj := &networking.ServiceCIDR{
		Spec: networking.ServiceCIDRSpec{
			CIDRs: []string{"10.10.0.0/16"},
		},
	}
	StatusStrategy.PrepareForUpdate(context.TODO(), newObj, oldObj)
	if !reflect.DeepEqual(newObj.Spec, networking.ServiceCIDRSpec{}) {
		t.Errorf("Expected spec field to be preserved from old object during status update")
	}

	newObj = &networking.ServiceCIDR{

		ctx := genericapirequest.NewDefaultContext()
		resourceClaimParameters := resourceClaimParameters.DeepCopy()
		newObj := resourceClaimParameters.DeepCopy()
		newObj.Name += "-2"
		newObj.ResourceVersion = "4"

		Strategy.PrepareForUpdate(ctx, newObj, resourceClaimParameters)
		errs := Strategy.ValidateUpdate(ctx, newObj, resourceClaimParameters)
		if len(errs) == 0 {
			t.Errorf("expected a validation error")
		}
	})

			"the storageclass that provisions the pvc must support resize")
	}
	tests := []struct {
		name        string
		resource    schema.GroupVersionResource
		subresource string
		oldObj      runtime.Object
		newObj      runtime.Object

		checkError func(error) bool
	}{
		{
			name:     "pvc-resize, update, no error",
			resource: api.SchemeGroupVersion.WithResource("persistentvolumeclaims"),

			if oldObj == nil {
				return
			}
			newObj := ExtractObject(newInterface)
			if newObj == nil {
				return
			}
			if onlyIncludeSpecChanges && oldObj.GetResourceVersion() == newObj.GetResourceVersion() {
				return
			}
			newer := filter(newObj)
			older := filter(oldObj)
			if !newer && !older {
				return
			}
			handler(newObj)
		},
		DeleteFunc: single,
	}
}

		c.queue.Add(key)
	}

	registration, err := c.informer.AddEventHandler(cache.ResourceEventHandlerDetailedFuncs{
		AddFunc: enqueue,
		UpdateFunc: func(oldObj, newObj interface{}) {
			oldMeta, err1 := meta.Accessor(oldObj)
			newMeta, err2 := meta.Accessor(newObj)

			if err1 != nil || err2 != nil {
				if err1 != nil {
					utilruntime.HandleError(err1)
				}

				if err2 != nil {

		pod            *v1.Pod
		oldObj, newObj interface{}
		expectedHint   framework.QueueingHint
		expectedErr    bool
	}{
		"backoff-wrong-old-object": {
			pod:          &v1.Pod{},
			oldObj:       "not-a-pod",
			expectedHint: framework.Queue,
			expectedErr:  true,
		},
		"backoff-wrong-new-object": {
			pod:          &v1.Pod{},
			newObj:       "not-a-pod",
			expectedHint: framework.Queue,

	defer func() {
		nowFunc = metav1.Now
	}()

	tests := []struct {
		name        string
		newObj      *certapi.CertificateSigningRequest
		oldObj      *certapi.CertificateSigningRequest
		expectedObj *certapi.CertificateSigningRequest
	}{
		{
			name:        "no-op",
			newObj:      &certapi.CertificateSigningRequest{},
			oldObj:      &certapi.CertificateSigningRequest{},