def test_stopped_already_have_result(self):
        registry = ResultRegistry(FakeReactor())
        er = EventualResult(succeed(123), None)
        registry.register(er)
        registry.stop()
        self.assertEqual(er.wait(), 123)
        self.assertEqual(er.wait(), 123)
        self.assertEqual(er.wait(), 123)
ResultRegistery.stop() has no impact on registered EventualResult
dataset/ETHPy150Open itamarst/crochet/crochet/tests/test_api.py/ResultRegistryTests.test_stopped_already_have_result