public void isInOrder() {
    isInOrder(Ordering.natural());
  }
@Test
  public void isInOrderWithNonComparableElementsFailure() {
    try {
      assertThat(asList((Object) 1, "2", 2, "3")).isInOrder();
      fail("Should have thrown.");
    } catch (ClassCastException expected) {
    }
  }