Question

我正在尝试集成测试某些RabbitMQ代码。现在，我有一个类RabbitMqConsumer和一个BeginConsuming()方法，如下所示：

    public void BeginConsuming()
    {
        var messageConsumer = new EventingBasicConsumer(ConsumerChannel);

        //Consumes messages from queue
        messageConsumer.Received += (model, eventArgs) =>
        {
            var message = Encoding.UTF8.GetString(eventArgs.Body);
            HandleMessage(message);

            // Send a message to the stats service to recalculate the stats when each game ends
            if (GameplayMessageHandler.GetMessageType(message) == "gameEnd")
            {
                var jsonMsgObject = (JObject)JsonConvert.DeserializeObject(message);
                var gameGuid = (Guid) jsonMsgObject["game_guid"];
                SendPostGameStatsEventToStatsService(gameGuid);
            }

            // After *everything* is done for processing this message, fire the message handled event
            MessageHandled?.Invoke();
        };

        ConsumerChannel.BasicConsume(
            queue: _rabbitSettings.GamesQueueName,
            autoAck: true,
            consumer: messageConsumer);

        Log.Logger.Information("Now consuming RabbitMq messages in channel: {queueName}", _rabbitSettings.GamesQueueName);
    }

我在该类中声明了以下事件/委托：

public delegate void OnMessageHandledListener();
public event OnMessageHandledListener MessageHandled;

这个想法是当RabbitMQ处理完每条消息时触发此事件。然后，我可以编写一个如下所示的测试：

model.BasicPublish("", "GameEvents", false, null, msgBytes);

Assert.True(fakeRabbitServer.Queues["GameEvents"].Messages.Count.Equals(1));
gameEventsRabbitConsumer.MessageHandled += () =>
{
 Assert.True(fakeRabbitServer.Queues["GameEvents"].Messages.Count.Equals(0));
};
gameEventsRabbitConsumer.BeginConsuming();

但是，此测试在Assert.True(fakeRabbitServer.Queues["GameEvents"].Messages.Count.Equals(0));行上失败

为什么此时我的队列没有排空？这是我处理事物的异步性质时的错误吗？我该如何纠正？

为什么我的C＃RabbitMQ消费者集成测试失败？我希望队列不为空

0 个答案: