func (statefulSetStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
	newStatefulSet := obj.(*apps.StatefulSet)
	oldStatefulSet := old.(*apps.StatefulSet)
	// Update is not allowed to set status
	newStatefulSet.Status = oldStatefulSet.Status

	dropStatefulSetDisabledFields(newStatefulSet, oldStatefulSet)
	pod.DropDisabledTemplateFields(&newStatefulSet.Spec.Template, &oldStatefulSet.Spec.Template)

}

func TestStatefulSetControllerAddPodOrphan(t *testing.T) {
	logger, ctx := ktesting.NewTestContext(t)
	ssc, _, om, _ := newFakeStatefulSetController(ctx)
	set1 := newStatefulSet(3)
	set2 := newStatefulSet(3)
	set2.Name = "foo2"
	set3 := newStatefulSet(3)
	set3.Name = "foo3"
	set3.Spec.Selector.MatchLabels = map[string]string{"foo3": "bar"}
	pod := newStatefulSetPod(set1, 0)
	om.setsIndexer.Add(set1)

	appslisters "k8s.io/client-go/listers/apps/v1"
	core "k8s.io/client-go/testing"
	"k8s.io/client-go/tools/cache"
)

func TestStatefulSetUpdaterUpdatesSetStatus(t *testing.T) {
	set := newStatefulSet(3)
	status := apps.StatefulSetStatus{ObservedGeneration: 1, Replicas: 2}
	fakeClient := &fake.Clientset{}
	updater := NewRealStatefulSetStatusUpdater(fakeClient, nil)

			got[revisions[i].Name] = true
		}
		if !reflect.DeepEqual(test.want, got) {
			t.Errorf("%s: want %v got %v", test.name, test.want, got)
		}
	}
	ss1 := newStatefulSet(3, "ss1", types.UID("ss1"), map[string]string{"foo": "bar"})
	ss2 := newStatefulSet(3, "ss2", types.UID("ss2"), map[string]string{"goo": "car"})
	sel1, err := metav1.LabelSelectorAsSelector(ss1.Spec.Selector)
	if err != nil {
		t.Fatal(err)
	}

	_ "k8s.io/kubernetes/pkg/apis/core/install"
	"k8s.io/kubernetes/pkg/features"
	"k8s.io/utils/ptr"
)

func TestStatefulPodControlCreatesPods(t *testing.T) {
	recorder := record.NewFakeRecorder(10)
	set := newStatefulSet(3)
	pod := newStatefulSetPod(set, 0)
	fakeClient := &fake.Clientset{}
	claimIndexer := cache.NewIndexer(cache.MetaNamespaceKeyFunc, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc})

func TestIsMemberOf(t *testing.T) {
	set := newStatefulSet(3)
	set2 := newStatefulSet(3)
	set2.Name = "foo2"
	pod := newStatefulSetPod(set, 1)
	if !isMemberOf(set, pod) {
		t.Error("isMemberOf returned false negative")
	}
	if isMemberOf(set2, pod) {
		t.Error("isMemberOf returned false positive")
	}
}

func TestIdentityMatches(t *testing.T) {
	set := newStatefulSet(3)
	pod := newStatefulSetPod(set, 1)

		return "Delete"
	}
	return "invalid"
}

func TestStatefulSetControl(t *testing.T) {
	simpleSetFn := func() *apps.StatefulSet { return newStatefulSet(3) }
	largeSetFn := func() *apps.StatefulSet { return newStatefulSet(5) }

	testCases := []struct {
		fn  func(*testing.T, *apps.StatefulSet, invariantFunc)
		obj func() *apps.StatefulSet
	}{
		{CreatesPods, simpleSetFn},

		},
	}

	rsName, err := controller.KeyFunc(rs)
	if err != nil {
		t.Fatalf("Unexpected error naming ReplicaSet %q: %v", rs.Name, err)
	}

	return rs, rsName
}

func newStatefulSet(t *testing.T, size int32) (*apps.StatefulSet, string) {
	ss := &apps.StatefulSet{
		TypeMeta: metav1.TypeMeta{APIVersion: "v1"},
		ObjectMeta: metav1.ObjectMeta{
			UID:             uuid.NewUUID(),