// lists do.
    assertTrue(iterator.next() instanceof RandomAccess);
    assertTrue(iterator.next() instanceof RandomAccess);
  }

  // More tests in IteratorsTest
  public void testAddAllToList() {
    List<String> alreadyThere = newArrayList("already", "there");
    List<String> freshlyAdded = newArrayList("freshly", "added");

    boolean changed = Iterables.addAll(alreadyThere, freshlyAdded);