assertThat(expected).hasCauseThat().isSameInstanceAs(CHECKED_EXCEPTION);
  }

  // Boring timed-get tests:

  public void testGetCheckedTimed_success() throws TwoArgConstructorException {
    assertEquals(
        "foo", getChecked(immediateFuture("foo"), TwoArgConstructorException.class, 0, SECONDS));
  }

  public void testGetCheckedTimed_interrupted() {