.inOrder();
  }

  public void testStream_optionalInt() {
    assertThat(stream(OptionalInt.empty())).isEmpty();
    assertThat(stream(OptionalInt.of(5))).containsExactly(5);
  }

  public void testStream_optionalLong() {
    assertThat(stream(OptionalLong.empty())).isEmpty();
    assertThat(stream(OptionalLong.of(5L))).containsExactly(5L);
  }

  public void testStream_optionalDouble() {

    ImmutableDoubleArray.of(0, 1, 2, 3)
        .forEach(i -> assertThat(i).isEqualTo((double) count.getAndIncrement()));
    assertThat(count.get()).isEqualTo(4);
  }

  public void testStream() {
    ImmutableDoubleArray.of().stream().forEach(i -> fail());
    ImmutableDoubleArray.of(0, 1, 3).subArray(1, 1).stream().forEach(i -> fail());
    assertThat(ImmutableDoubleArray.of(0, 1, 3).stream().toArray())

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

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

  public void testStream() {
    ImmutableIntArray.of().stream().forEach(i -> fail());
    ImmutableIntArray.of(0, 1, 3).subArray(1, 1).stream().forEach(i -> fail());

   * overkill when nearly all Streams are produced using well-tested JDK calls. So, we cheat and
   * just test that the toArray() contents are as expected.
   */
  public void testStream() {
    assertThat(FluentIterable.of().stream()).isEmpty();
    assertThat(FluentIterable.of("a").stream()).containsExactly("a");
    assertThat(FluentIterable.of(1, 2, 3).stream().filter(n -> n > 1)).containsExactly(2, 3);