}

  public void testAwaitTermination() throws Exception {
    boolean result = executorService.awaitTermination(Duration.ofMinutes(144));

    assertThat(result).isTrue();
    assertThat(recordedTimeUnit).isEqualTo(NANOSECONDS);
    assertThat(Duration.ofNanos(recordedTimeout)).isEqualTo(Duration.ofMinutes(144));
  }

  private class FakeExecutorService extends AbstractListeningExecutorService {
    @Override

    ListenableScheduledFuture<String> future =
        executorService.schedule(callable, Duration.ofMinutes(12));

    assertThat(future.get()).isEqualTo("hello");
    assertThat(recordedTimeUnit).isEqualTo(NANOSECONDS);
    assertThat(Duration.ofNanos(recordedDelay)).isEqualTo(Duration.ofMinutes(12));
  }

  public void testScheduleAtFixedRate() throws Exception {
    Runnable command = () -> {};