List<Integer> expected = asList(1, 2, 3);
    assertEquals(expected, actual);
    assertCanIterateAgain(result);
    assertThat(result.toString()).isEqualTo("[1, 2, 3]");
  }

  public void testTransform_forEach() {
    List<Integer> input = asList(1, 2, 3, 4);
    Iterable<String> result =
        Iterables.transform(
            input,
            new Function<Integer, String>() {
              @Override