Dependency Identification for Testing NServiceBus

Question

Here's how you should inject dependencies for your NServiceBus handler to test it:

Test.Handler<YourMessageHandler>() .WithExternalDependencies(h => h.Dependency = yourObj) 

( http://nservicebus.com/UnitTesting.aspx )

However, this means that the reference to the Dependency object must be public, which I do not like. Is there any way to keep it private readonly and assign it inside the constructor, so that the implementation should only be passed through the handler constructor?

thanks

Answer 1

You can use constructor injection using the following syntax:

  Test.Handler<YourMessageHandler>(bus => new YourMessageHandler(dep1, dep2)) 

Where dep1 and dep2, in all likelihood, are just some of the stubs or jokes that your mocking structure has prepared for you.

- Updated Udi Dahan from here:

You can access the mocked bus instance through Test.Bus.