Discussion of testing theory and practice, including methodologies (such as TDD, BDD, DDD, Agile, XP) and software - anything to do with testing goes here. (Formerly "The Testing Side of Development")
For the things I've written so far (nothing really fully blown), no. I use smoke-testing i.e. manual human intervention to test them. It's tough mocking all the dependencies, sometimes the unit test will be longer than the actual code.