assertEquals("mo", iterator.next());
    assertEquals("jack", iterator.next());
    assertFalse(iterator.hasNext());
  }

  public void testIndexOf_consumedDataNoMatch() {
    Iterator<String> iterator = Lists.newArrayList("manny", "mo", "mo", "jack").iterator();
    assertEquals(-1, Iterators.indexOf(iterator, equalTo("bob")));
    assertFalse(iterator.hasNext());
  }