def test_to_dictionary_returns_instance_variables_as_dictionary(self):
message = Message()
message.banana = 5
message.apple = 7
message.inner_dictionary = {
'foo': 2,
'bar': 4
}
dictionary = message.to_dictionary()
self.assertEqual(7, dictionary['apple'])
self.assertEqual(4, dictionary['inner_dictionary']['bar'])
self.assertEqual(3, len(dictionary.keys()))
