[crdoconnor]

>Might be better than nothing, but if you are designing a reusable API, you'll be better using it on some real code.

This is generally why I take the top down approach to coding:

1) Write ultra high level test

2) Write code that implements it.

3) In that code if I need something lower level, write the API that I want

4) Write a lower level test that mirrors what I just wrote in real code.

5) Implement the code that passes that test & use it at the higher level.

etc.