}

  private static void assertState(
      ServiceManager manager, Service.State state, Service... services) {
    Collection<Service> managerServices = manager.servicesByState().get(state);
    for (Service service : services) {
      assertEquals(service.toString(), state, service.state());

  public ServiceManager startAsync() {
    for (Service service : services) {
      checkState(service.state() == NEW, "Not all services are NEW, cannot start %s", this);
    }
    for (Service service : services) {
      try {
        state.tryStartTiming(service);
        service.startAsync();
      } catch (IllegalStateException e) {
        // This can happen if the service has already been started or stopped (e.g. by another

  public ServiceManager startAsync() {
    for (Service service : services) {
      checkState(service.state() == NEW, "Not all services are NEW, cannot start %s", this);
    }
    for (Service service : services) {
      try {
        state.tryStartTiming(service);
        service.startAsync();
      } catch (IllegalStateException e) {
        // This can happen if the service has already been started or stopped (e.g. by another

    assertEquals(1, service.startUpCalled);
    assertEquals(Service.State.FAILED, service.state());
    assertThat(service.transitionStates).containsExactly(Service.State.STARTING);
  }

  public void testStop_withoutStart() {
    TestService service = new TestService();
    service.stopAsync().awaitTerminated();
    assertEquals(0, service.startUpCalled);
    assertEquals(0, service.shutDownCalled);

	cmd := &cobra.Command{
		Use:     "service <svc>",
		Aliases: []string{"svc"},
		Short:   "Describe services and their Istio configuration [kube-only]",
		Long: `Analyzes service, pods, DestinationRules, and VirtualServices and reports
the configuration objects that affect that service.`,
		Example: `  istioctl experimental describe service productpage`,
		Args: func(cmd *cobra.Command, args []string) error {

    ExecutorService service = mock(ExecutorService.class);
    application.addDelayedShutdownHook(service, 2, SECONDS);
    verify(service, Mockito.never()).shutdown();
    application.shutdown();
    InOrder shutdownFirst = Mockito.inOrder(service);
    shutdownFirst.verify(service).shutdown();
    shutdownFirst.verify(service).awaitTermination(2, SECONDS);
  }

    assertEquals(1, service.startUpCalled);
    assertEquals(Service.State.FAILED, service.state());
    assertThat(service.transitionStates).containsExactly(Service.State.STARTING);
  }

  public void testStop_withoutStart() {
    TestService service = new TestService();
    service.stopAsync().awaitTerminated();
    assertEquals(0, service.startUpCalled);
    assertEquals(0, service.shutDownCalled);

    assertEquals(0, service.runCalled);
    assertEquals(1, service.shutdownCalled);
  }

  public void testStop_noStart() {
    FakeService service = new FakeService();
    service.stopAsync().awaitTerminated();
    assertEquals(Service.State.TERMINATED, service.state());
    assertEquals(0, service.startupCalled);
    assertEquals(0, service.runCalled);
    assertEquals(0, service.shutdownCalled);
  }

@J2ktIncompatible
@ElementTypesAreNonnullByDefault
public abstract class AbstractExecutionThreadService implements Service {
  /* use AbstractService for state management */
  private final Service delegate =
      new AbstractService() {
        @Override
        protected final void doStart() {
          Executor executor = MoreExecutors.renamingDecorator(executor(), () -> serviceName());
          executor.execute(
              () -> {

    assertEquals(0, service.runCalled);
    assertEquals(1, service.shutdownCalled);
  }

  public void testStop_noStart() {
    FakeService service = new FakeService();
    service.stopAsync().awaitTerminated();
    assertEquals(Service.State.TERMINATED, service.state());
    assertEquals(0, service.startupCalled);
    assertEquals(0, service.runCalled);
    assertEquals(0, service.shutdownCalled);
  }