it('should support the orderedMapOf propTypes', function() {
      typeCheckPass(PropTypes.orderedMapOf(React.PropTypes.number), Immutable.OrderedMap({1: 1, 2: 2, 3: 3}));
      typeCheckPass(PropTypes.orderedMapOf(React.PropTypes.string), Immutable.OrderedMap({1: 'a', 2: 'b', 3: 'c'}));
      typeCheckPass(PropTypes.orderedMapOf(React.PropTypes.oneOf(['a', 'b'])), Immutable.OrderedMap({1: 'a', 2: 'b'}));
    });