I haven't, thanks for pointing out. Seems like a closely related concept, although appears to be used mostly in security testing context. Also, at least for Pyt

I haven't, thanks for pointing out. Seems like a closely related concept, although appears to be used mostly in security testing context. Also, at least for Python most tools are a bit too complex—I imagined something more like a TestCase subclass (not even a test runner) that augments certain assert methods and possibly provides new ones. Anyway, on a second thought, adopting TDD looks like a better solution.