ImmutableLongArray.of().forEach(i -> fail());
    ImmutableLongArray.of(0, 1, 3).subArray(1, 1).forEach(i -> fail());

    AtomicLong count = new AtomicLong(0);
    ImmutableLongArray.of(0, 1, 2, 3)
        .forEach(i -> assertThat(i).isEqualTo(count.getAndIncrement()));
    assertThat(count.get()).isEqualTo(4);
  }

  public void testStream() {
    ImmutableLongArray.of().stream().forEach(i -> fail());