ImmutableLongArray iia = ImmutableLongArray.copyOf(iterable(list));
    list.set(2, 2L);
    assertThat(iia.asList()).containsExactly(0L, 1L, 3L).inOrder();
  }

  public void testCopyOf_iterable_collection_empty() {
    Iterable<Long> iterable = Collections.emptySet();
    assertThat(ImmutableLongArray.copyOf(iterable)).isSameInstanceAs(ImmutableLongArray.of());
  }