An overview of unit testing terminology ( stub vs mock , integration vs. interaction )?

Question

I\'m using more unit tests in my projects and reading all the information I can online and am getting confused by a lot of the terminology. As a result I\'m probably using these

Answer 1

I've read (and heartily recommend) The Art of Unit Testing by Roy Osherove. He uses a simplified set of terminology.

To paraphrase his book ...

Integration Test - any test that reaches outside of the current process or object to interact with something else

Interaction Test - a test on the way that objects work together

State Test - a test on the results produced by an operation

Fake - any stand-in object that's used instead of the real thing

Stub - a stand-in object that provides a dependency required by the code under test

Mock - a stand-in used to check the results of the test

Note that here both Stubs and Mocks can be provided by a Mocking framework - the distiction is as much about how they're used as the technology used.