},
				Status: core.ReplicationControllerStatus{
					Replicas: -3,
				},
			},
		},
	}
	for testName, errorCase := range errorCases {
		if errs := ValidateReplicationControllerStatusUpdate(&errorCase.update, &errorCase.old); len(errs) == 0 {
			t.Errorf("expected failure: %s", testName)
		}
	}

}