Unit testing is what software developers do to check each source code module and its methods. This testing checks invalid values being passed in parameters, makes sure errors and exceptions are handled correctly and ensures code cleans up after itself.

The closest I came to learning testing in college was unit testing. Of course I did not take a disciplined approach back then. No unit test plan was written, results were not captured and defects were not documented. Some may argue that documentation is boring and useless. But I have come in after unit testing and taken over projects in my career. Believe me you can have more confidence in the testing if the developers have a disciplined mind and take the time to document their unit testing.

Come back tomorrow when I will discuss integration testing. The bunny knows where you live.