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How to use _get_fake_verifier method in tavern

Best Python code snippet using tavern

test_mqtt_response.py

Source:test_mqtt_response.py

...21    def __init__(self, returned):22        self.topic = returned["topic"]23        self.payload = returned["payload"].encode("utf8")24class TestResponse(object):25    def _get_fake_verifier(self, expected, fake_messages):26        """Given a list of messages, return a mocked version of the MQTT27        response verifier which will take messages off the front of this list as28        if they were published29        This mocks it as if all messages were returned in order, which they30        might not have been...?31        """32        if not isinstance(fake_messages, list):33            pytest.fail("Need to pass a list of messages")34        def yield_all_messages():35            msg_copy = fake_messages[:]36            def inner(timeout):37                try:38                    return msg_copy.pop(0)39                except IndexError:40                    return None41            return inner42        fake_client = Mock(43            spec=MQTTClient,44            message_received=yield_all_messages(),45        )46        return MQTTResponse(fake_client, "Test stage", expected, {})47    def test_message_on_same_topic_fails(self):48        """Correct topic, wrong message"""49        expected = {50            "topic": "/a/b/c",51            "payload": "hello",52        }53        fake_message = FakeMessage({54            "topic": "/a/b/c",55            "payload": "goodbye",56        })57        verifier = self._get_fake_verifier(expected, [fake_message])58        with pytest.raises(exceptions.TestFailError):59            verifier.verify(expected)60        assert len(verifier.received_messages) == 161        assert verifier.received_messages[0].topic == fake_message.topic62    def test_correct_message(self):63        """Both correct matches"""64        expected = {65            "topic": "/a/b/c",66            "payload": "hello",67        }68        fake_message = FakeMessage(expected)69        verifier = self._get_fake_verifier(expected, [fake_message])70        verifier.verify(expected)71        assert len(verifier.received_messages) == 172        assert verifier.received_messages[0].topic == fake_message.topic73    def test_correct_message_eventually(self):74        """One wrong messge, then the correct one"""75        expected = {76            "topic": "/a/b/c",77            "payload": "hello",78        }79        fake_message_good = FakeMessage(expected)80        fake_message_bad = FakeMessage({81            "topic": "/a/b/c",82            "payload": "goodbye",83        })84        verifier = self._get_fake_verifier(expected, [fake_message_bad, fake_message_good])85        verifier.verify(expected)86        assert len(verifier.received_messages) == 287        assert verifier.received_messages[0].topic == fake_message_bad.topic...

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