}

  private static void assertSuccessful(
      AbstractFuture<Integer> future, @Nullable Integer expectedResult)
      throws InterruptedException, TimeoutException, ExecutionException {
    assertDone(future);
    assertThat(future.isCancelled()).isFalse();

    assertThat(getDone(future)).isEqualTo(expectedResult);
    assertThat(getDoneFromTimeoutOverload(future)).isEqualTo(expectedResult);
  }