import org.checkerframework.checker.nullness.qual.Nullable;

/** Test case for {@link TrustedListenableFutureTask}. */
@ElementTypesAreNonnullByDefault
@GwtCompatible(emulated = true)
public class TrustedListenableFutureTaskTest extends TestCase {

  public void testSuccessful() throws Exception {
    TrustedListenableFutureTask<Integer> task = TrustedListenableFutureTask.create(returning(2));
    assertFalse(task.isDone());
    task.run();

      ScheduledExecutorService executorService) {
    TrustedListenableFutureTask<O> task = TrustedListenableFutureTask.create(callable);
    Future<?> scheduled = executorService.schedule(task, delay, timeUnit);
    /*
     * Even when the user interrupts the task, we pass `false` to `cancel` so that we don't
     * interrupt a second time after the interruption performed by TrustedListenableFutureTask.
     */

      ScheduledExecutorService executorService) {
    TrustedListenableFutureTask<O> task = TrustedListenableFutureTask.create(callable);
    Future<?> scheduled = executorService.schedule(task, delay, timeUnit);
    /*
     * Even when the user interrupts the task, we pass `false` to `cancel` so that we don't
     * interrupt a second time after the interruption performed by TrustedListenableFutureTask.
     */

      this.delegate = checkNotNull(delegate);
    }

    @Override
    public ListenableScheduledFuture<?> schedule(Runnable command, long delay, TimeUnit unit) {
      TrustedListenableFutureTask<@Nullable Void> task =
          TrustedListenableFutureTask.create(command, null);
      ScheduledFuture<?> scheduled = delegate.schedule(task, delay, unit);
      return new ListenableScheduledTask<@Nullable Void>(task, scheduled);
    }

    List<Future<String>> results;

    results = service.invokeAll(callables);
    assertThat(getOnlyElement(results)).isInstanceOf(TrustedListenableFutureTask.class);

    results = service.invokeAll(callables, 1, SECONDS);
    assertThat(getOnlyElement(results)).isInstanceOf(TrustedListenableFutureTask.class);

    /*
     * TODO(cpovirk): move ForwardingTestCase somewhere common, and use it to
     * test the forwarded methods

    List<Future<String>> results;

    results = service.invokeAll(callables);
    assertThat(getOnlyElement(results)).isInstanceOf(TrustedListenableFutureTask.class);

    results = service.invokeAll(callables, 1, SECONDS);
    assertThat(getOnlyElement(results)).isInstanceOf(TrustedListenableFutureTask.class);

    /*
     * TODO(cpovirk): move ForwardingTestCase somewhere common, and use it to
     * test the forwarded methods

      ClosingCallable<V> callable, Executor executor) {
    checkNotNull(callable);
    CloseableList closeables = new CloseableList();
    TrustedListenableFutureTask<V> task =
        TrustedListenableFutureTask.create(
            new Callable<V>() {
              @Override
              @ParametricNullness
              public V call() throws Exception {