}

  public void testAppend_nullPointerException() {
    try {
      FluentIterable<Integer> unused =
          FluentIterable.<Integer>from(asList(1, 2)).append((List<Integer>) null);
      fail("Appending null iterable should throw NPE.");
    } catch (NullPointerException expected) {
    }
  }

  /*
   * Tests for partition(int size) method.
   */

  /*