@Override
    public void run() {
      count++;
    }
  }

  @AndroidIncompatible // Mocking ExecutorService is forbidden there. TODO(b/218700094): Don't mock.
  public void testAddDelayedShutdownHook_success() throws InterruptedException {
    TestApplication application = new TestApplication();
    ExecutorService service = mock(ExecutorService.class);
    application.addDelayedShutdownHook(service, 2, SECONDS);

    @Override
    public void run() {
      count++;
    }
  }

  @AndroidIncompatible // Mocking ExecutorService is forbidden there. TODO(b/218700094): Don't mock.
  public void testAddDelayedShutdownHook_success() throws InterruptedException {
    TestApplication application = new TestApplication();
    ExecutorService service = mock(ExecutorService.class);
    application.addDelayedShutdownHook(service, 2, SECONDS);