For Those About to Mock
If you want to prove that a complex system works, a good place to start is to check that each piece is working right. Unit testing intends to do just that: take a unit of your code, and verify that it behaves properly. Unfortunately, in “real” software, dependencies between classes make testing in isolation difficult. Mocking is a technique designed to overcome that issue, and replace dependencies by Mocks, lightweight versions of the “real thing”, allowing you to validate the interactions of a class with its “collaborators”. I will discuss reasons you should care about mocks, illustrate how you would go about addressing them by rolling your own mocks & stubs, and demonstrate two free, open-source frameworks, Rhino.Mocks and Moq, which will greatly simplify your job. Mocks and Stubs can sound intimidating – the goal of this presentation is to demystify the topic and give you a clear understanding of what they are, where they can help you, and to give you a good quick-start so that you can productively use them in your own code.
- Not Interested