def test_consume(self):
"""The consume helper should direct all incoming messages matching the
specified routing_key, queue_name & exchange to the given callback"""
message = fake_amq_message({"key": "value"})
worker = get_stubbed_worker(Worker)
# buffer to check messages consumed
log = [Message.from_json(message.content.body)]
# consume all messages on the given routing key and append
# them to the log
worker.consume('test.routing.key', lambda msg: log.append(msg))
# if all works well then the consume method should funnel the test
# message straight to the callback, the callback will apend it to the
# log and we can test it.
worker._amqp_client.broker.basic_publish('vumi', 'test.routing.key',
message.content)
self.assertEquals(log, [Message(key="value")])
