new EqualsTester()
        .addEqualityGroup(map1, wrap(map1), wrap(map1))
        .addEqualityGroup(map2, wrap(map2))
        .testEquals();
  }

  public void testStandardEntrySet() throws InvocationTargetException {
    @SuppressWarnings("unchecked")
    Map<String, Boolean> map = mock(Map.class);

    Map<String, Boolean> forward =
        new ForwardingMap<String, Boolean>() {