}
  }

  public void testIndexOf_empty() {
    List<String> list = new ArrayList<>();
    assertEquals(-1, Iterables.indexOf(list, equalTo("")));
  }

  public void testIndexOf_oneElement() {
    List<String> list = Lists.newArrayList("bob");
    assertEquals(0, Iterables.indexOf(list, equalTo("bob")));
    assertEquals(-1, Iterables.indexOf(list, equalTo("jack")));
  }