def METHOD_NAME(self):
    # Note: not a setup_class method, not to conflict with AbstractTestFixture's setup
    rabbit = os.getenv('JORMUNGANDR_BROKER_URL', "pyamqp://guest:guest@localhost:5672")
    self._mock_rabbit_connection = BrokerConnection(rabbit)
    self._connections = {self._mock_rabbit_connection}
    self._exchange = Exchange('navitia', durable=True, delivry_mode=2, type='topic')
    self._mock_rabbit_connection.connect()
    # wait for the cnx to run the test
    self._wait_for_rabbitmq_cnx()