I am quite a proponent of TDD/BDD, my framework of choice being RSPEC within Rails
But, I also understand that for people unused to TDD, the upfront investment seems daunting. So, I was very interested to be told about…
This seems to be a nice light introduction into TDD. I can see that for extensive test coverage it is going to be a bit of a problem, there being no concept of fixtures etc. But I can definitely see someone adopting DOCTEST and then moving on to Unit testing or RSPEC later.
If you do not already embrace TDD, and recoil at its apparent heaviness, give doctest a look, but remember, tdd can be habit forming.