If you're looking for book suggestions, I'd recommend "Growing Object-Oriented Software, Guided By Tests" by Steve Freeman and Nat Pryce. It's pretty pragmatic

If you're looking for book suggestions, I'd recommend "Growing Object-Oriented Software, Guided By Tests" by Steve Freeman and Nat Pryce. It's pretty pragmatic, and the treatment of the subject is pretty thought-provoking (at least, I thought so when I read it). The examples are all Java, but the accompanying website (http://www.growing-object-oriented-software.com/ http://www.growing-object-oriented-software.com/) has links to reimplementations in several other languages.