}

  public void testImmediateFailedFuture() throws Exception {
    Exception exception = new Exception();
    ListenableFuture<String> future = immediateFailedFuture(exception);
    assertThat(future.toString()).endsWith("[status=FAILURE, cause=[" + exception + "]]");

    ExecutionException expected = assertThrows(ExecutionException.class, () -> getDone(future));

  }

  public void testImmediateFailedFuture() throws Exception {
    Exception exception = new Exception();
    ListenableFuture<String> future = immediateFailedFuture(exception);
    assertThat(future.toString()).endsWith("[status=FAILURE, cause=[" + exception + "]]");

    ExecutionException expected = assertThrows(ExecutionException.class, () -> getDone(future));

@GwtIncompatible
@J2ktIncompatible
public class ExecutionSequencerTest extends TestCase {

  ExecutorService executor;

  private ExecutionSequencer serializer;
  private SettableFuture<@Nullable Void> firstFuture;
  private TestCallable firstCallable;

  @Override
  public void setUp() throws Exception {
    executor = newCachedThreadPool();
    serializer = ExecutionSequencer.create();
    firstFuture = SettableFuture.create();

public final class SimpleTimeLimiter implements TimeLimiter {

  private final ExecutorService executor;

  private SimpleTimeLimiter(ExecutorService executor) {
    this.executor = checkNotNull(executor);
  }

  /**
   * Creates a TimeLimiter instance using the given executor service to execute method calls.
   *
   * <p><b>Warning:</b> using a bounded executor may be counterproductive! If the thread pool fills

        request.setBatchedReduceSize(bufferSize);
        ExecutorService executor = Executors.newFixedThreadPool(1);
        QueryPhaseResultConsumer consumer = new QueryPhaseResultConsumer(
            request,
            executor,
            new NoopCircuitBreaker(CircuitBreaker.REQUEST),
            controller,
            SearchProgressListener.NOOP,

     */
    @Test
    public void testConnectionPoolConcurrentPerformance() throws Exception {
        SmbTransportPoolImpl pool = new SmbTransportPoolImpl();
        pool.setMaxPoolSize(100);

        int threadCount = 20;
        int operationsPerThread = 100;
        ExecutorService executor = Executors.newFixedThreadPool(threadCount);
        CountDownLatch startLatch = new CountDownLatch(1);

    assertFalse(task.wasInterrupted());
    assertThrows(CancellationException.class, () -> getDone(task));
    verifyThreadWasNotInterrupted();
  }

  public void testFailed() throws Exception {
    Exception e = new Exception();
    TrustedListenableFutureTask<Integer> task =
        TrustedListenableFutureTask.create(
            () -> {
              throw e;
            });
    task.run();

  }

  @J2ktIncompatible
  @GwtIncompatible // withTimeout
  public void testWithTimeout() throws Exception {
    ScheduledExecutorService executor = newScheduledThreadPool(1);
    try {
      FluentFuture<?> f =
          FluentFuture.from(SettableFuture.create()).withTimeout(0, SECONDS, executor);
      ExecutionException e = assertThrows(ExecutionException.class, f::get);

      // mayInterruptIfRunning is irrelevant.
      cancel(false);
      return;
    } catch (ExecutionException e) {
      // Set the cause of the exception as this future's exception.
      setException(e.getCause());
      return;
    } catch (Exception e) { // sneaky checked exception
      // Bug in inputFuture.get(). Propagate to the output Future so that its consumers don't hang.
      setException(e);
      return;

@J2ktIncompatible
public class ClosingFutureFinishToFutureTest extends AbstractClosingFutureTest {
  public void testFinishToFuture_throwsIfCalledTwice() throws Exception {
    ClosingFuture<Closeable> closingFuture =
        ClosingFuture.submit(closer -> closer.eventuallyClose(mockCloseable, executor), executor);
    FluentFuture<Closeable> unused = closingFuture.finishToFuture();
    assertThrows(
        IllegalStateException.class,
        () -> {