assertEquals("[a, b, c]", iterable.toString());
  }

  @SuppressWarnings("deprecation") // test of deprecated method
  public void testUnmodifiableIterableShortCircuit() {
    List<String> list = newArrayList("a", "b", "c");
    Iterable<String> iterable = Iterables.unmodifiableIterable(list);
    Iterable<String> iterable2 = Iterables.unmodifiableIterable(iterable);