BusHelper | 公交路线查询移动应用系统 - QPython webapp sample

1. You need to start the bus by calling bus.Start(). You do not do this so nothing is received anyway.
2. It is unclear what transportClient.CreateTransportAsync does. Who is publishing the message?
3. Consumer is instantiated per consumed message. What you do in your "test" - you instantiate an instance of the consumer and keep reference to that instance. Then you send a message somewhere. MassTransit creates a new instance of your consumer, you get the field updated, then the instance gets disposed. But you are checking the Result of the instance you have originally created, which is never receiving any message. It will always be null.
4. Delivering message from publisher to consumer takes time. You are trying to check the result straight after you initialise the bus. I am quite sure you will never get it so fast, even if you fix (1), (2) and (3)

I am not sure what exactly are you trying to test. Publishing and consuming messages work over all transports with MassTransit. You can get any sample from Github, build it, run it and see it working.

There are also a number of tests for the RabbitMQ transport that show how you can create something like this. For example, check the ConsumerBind_Specs.cs file.

In addition, if you want to use some existing consumer instance, you can connect this instance to the bus as described in the documentation Connecting an existing consumer instance. Using e.Instance instead of e.Consumer will make your test work of you do proper waiting for the Consume method to finish. However, this is not really popular approach since you really want to limit your consumer scope to one message handling only.