// Sync deployment status
	return dc.syncRolloutStatus(ctx, allRSs, newRS, d)
}

func (dc *DeploymentController) reconcileNewReplicaSet(ctx context.Context, allRSs []*apps.ReplicaSet, newRS *apps.ReplicaSet, deployment *apps.Deployment) (bool, error) {
	if *(newRS.Spec.Replicas) == *(deployment.Spec.Replicas) {
		// Scaling not required.
		return false, nil
	}
	if *(newRS.Spec.Replicas) > *(deployment.Spec.Replicas) {
		// Scale down.

			Template:        newRSTemplate,
		},
	}
	allRSs := append(oldRSs, &newRS)
	newReplicasCount, err := deploymentutil.NewRSNewReplicas(d, allRSs, &newRS)
	if err != nil {
		return nil, err
	}

	*(newRS.Spec.Replicas) = newReplicasCount
	// Set new replica set's annotation
	deploymentutil.SetNewReplicaSetAnnotations(ctx, d, &newRS, newRevision, false, maxRevHistoryLengthInChars)

	if scaledDown {
		// Update DeploymentStatus.
		return dc.syncRolloutStatus(ctx, allRSs, newRS, d)
	}

	// Do not process a deployment when it has old pods running.
	if oldPodsRunning(newRS, oldRSs, podMap) {
		return dc.syncRolloutStatus(ctx, allRSs, newRS, d)
	}

	// If we need to create a new RS, create it now.
	if newRS == nil {
		newRS, oldRSs, err = dc.getAllReplicaSetsAndSyncRevision(ctx, d, rsList, true)
		if err != nil {

				client:        &fake,
				eventRecorder: &record.FakeRecorder{},
			}

			if test.newRS != nil {
				desiredReplicas := *(test.oldDeployment.Spec.Replicas)
				if desired, ok := test.desiredReplicasAnnotations[test.newRS.Name]; ok {
					desiredReplicas = desired
				}
				deploymentutil.SetReplicasAnnotations(test.newRS, desiredReplicas, desiredReplicas+deploymentutil.MaxSurge(*test.oldDeployment))
			}

func (rsStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
	newRS := obj.(*apps.ReplicaSet)
	oldRS := old.(*apps.ReplicaSet)
	// update is not allowed to set status
	newRS.Status = oldRS.Status

	pod.DropDisabledTemplateFields(&newRS.Spec.Template, &oldRS.Spec.Template)

	// Any changes to the spec increment the generation number, any changes to the

// to deployment conditions.
func (dc *DeploymentController) getReplicaFailures(allRSs []*apps.ReplicaSet, newRS *apps.ReplicaSet) []apps.DeploymentCondition {
	var conditions []apps.DeploymentCondition
	if newRS != nil {
		for _, c := range newRS.Status.Conditions {
			if c.Type != apps.ReplicaSetReplicaFailure {
				continue
			}

		},
	}
	StatusStrategy.PrepareForUpdate(ctx, newRS, oldRS)
	if newRS.Status.Replicas != 3 {
		t.Errorf("ReplicaSet status updates should allow change of replicas: %v", newRS.Status.Replicas)
	}
	if newRS.Spec.Replicas != 3 {
		t.Errorf("PrepareForUpdate should have preferred spec")
	}
	errs := StatusStrategy.ValidateUpdate(ctx, newRS, oldRS)
	if len(errs) != 0 {
		t.Errorf("Unexpected error %v", errs)
	}

			fake := fake.Clientset{}
			dc := &DeploymentController{
				client: &fake,
			}

			if test.newRS != nil {
				test.allRSs = append(test.allRSs, test.newRS)
			}
			_, ctx := ktesting.NewTestContext(t)
			err := dc.syncRolloutStatus(ctx, test.allRSs, test.newRS, test.d)
			if err != nil {
				t.Error(err)
			}

			newCond := util.GetDeploymentCondition(test.d.Status, test.conditionType)

		oldSelector := map[string]string{"foo": "old"}
		newRS := rs("foo-new", test.newReplicas, newSelector, noTimestamp)
		newRS.Status.AvailableReplicas = int32(test.readyPodsFromNewRS)
		oldRS := rs("foo-old", test.oldReplicas, oldSelector, noTimestamp)
		oldRS.Status.AvailableReplicas = int32(test.readyPodsFromOldRS)
		oldRSs := []*apps.ReplicaSet{oldRS}
		allRSs := []*apps.ReplicaSet{oldRS, newRS}
		maxSurge := intstr.FromInt32(0)

	}
	for k, v := range deployment.Annotations {
		// newRS revision is updated automatically in getNewReplicaSet, and the deployment's revision number is then updated
		// by copying its newRS revision number. We should not copy deployment's revision to its newRS, since the update of
		// deployment revision number may fail (revision becomes stale) and the revision number in newRS is more reliable.