// Scale down.
		scaled, _, err := dc.scaleReplicaSetAndRecordEvent(ctx, newRS, *(deployment.Spec.Replicas), deployment)
		return scaled, err
	}
	newReplicasCount, err := deploymentutil.NewRSNewReplicas(deployment, allRSs, newRS)
	if err != nil {
		return false, err
	}
	scaled, _, err := dc.scaleReplicaSetAndRecordEvent(ctx, newRS, newReplicasCount, deployment)
	return scaled, err
}

	logger.V(4).Info("Deployment timed out from last progress check", "deployment", klog.KObj(deployment), "timeout", timedOut, "from", from, "now", now)
	return timedOut
}

// NewRSNewReplicas calculates the number of replicas a deployment's new RS should have.
// When one of the followings is true, we're rolling out the deployment; otherwise, we're scaling it.

			MinReadySeconds: d.Spec.MinReadySeconds,
			Selector:        newRSSelector,
			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

				MaxUnavailable: ptr.To(intstr.FromInt32(1)),
				MaxSurge:       ptr.To(intstr.FromInt32(test.maxSurge)),
			}
			*(newRC.Spec.Replicas) = test.newRSReplicas
			rs, err := NewRSNewReplicas(&newDeployment, []*apps.ReplicaSet{&rs5}, &newRC)
			if err != nil {
				t.Errorf("In test case %s, got unexpected error %v", test.Name, err)
			}
			if rs != test.expected {