Well, I expect the snippets to run and possibly uncover bugs, so the underlying code is already written (or is written at the same time). I run them manually bu

Well, I expect the snippets to run and possibly uncover bugs, so the underlying code is already written (or is written at the same time). I run them manually but I keep a log and I periodically rerun them. So I guess it is not TDD but semi-automated testing (or better, an interactive way to end up with automated tests).