def test_dict_flatten_correct_path_no_action(self): should_be = {'a': {'b': 1, 'a': 2}, 'b': 3} start = {'a': {'b': 1, 'a': 2}, 'b': 3} result = Misc.merge_flatten_dict(dictionary=start, key='b') self.assertDictEqual(should_be, result)