ImmutableLongArray.of(0, 1, 3).subArray(1, 1).stream().forEach(i -> fail());
    assertThat(ImmutableLongArray.of(0, 1, 3).stream().toArray()).isEqualTo(new long[] {0, 1, 3});
  }

  public void testSubArray() {
    ImmutableLongArray iia0 = ImmutableLongArray.of();
    ImmutableLongArray iia1 = ImmutableLongArray.of(5);
    ImmutableLongArray iia3 = ImmutableLongArray.of(5, 25, 125);

    ImmutableLongArray iia0 = ImmutableLongArray.of();
    ImmutableLongArray iia1 = ImmutableLongArray.of(5);
    ImmutableLongArray iia3 = ImmutableLongArray.of(5, 25, 125);

    assertThat(iia0.subArray(0, 0)).isSameInstanceAs(ImmutableLongArray.of());
    assertThat(iia1.subArray(0, 0)).isSameInstanceAs(ImmutableLongArray.of());
    assertThat(iia1.subArray(1, 1)).isSameInstanceAs(ImmutableLongArray.of());