A live recording of Alex Chaffee delivering his lecture on Test-Driven Development, live-coding a sample utility class in Ruby and RSpec. Slides and labs are at and part one (where I introduce test-driven development and give some tips) is at . Thanks to Tim for hosting and to Chris for shooting essential dog video. Learn to program with tests at and !
Alex Chaffee is a renowned coder and agile coach. He was the co-creator and lead developer of Pivotal Tracker, and has recently launched as a repository of his many programming lessons and lectures.