@@ -111,8 +111,10 @@ func TestRmContainerOrphaning(t *testing.T) {

 }

 func TestRmInvalidContainer(t *testing.T) {

-	if _, _, err := runCommandWithOutput(exec.Command(dockerBinary, "rm", "unknown")); err == nil {

+	if out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "rm", "unknown")); err == nil {

 		t.Fatal("Expected error on rm unknown container, got none")

+	} else if !strings.Contains(out, "failed to remove one or more containers") {

+		t.Fatal("Expected output to contain 'failed to remove one or more containers', got %q", out)

 	}

 	logDone("rm - delete unknown container")