Let's Play: Test-Driven Development is a screencast series featuring Java, test-driven development, and evolutionary design. It chronicles the development of a real software project, warts and all. Each episode is about 15 minutes long. The series ran from August 2010 to June 2012. Episodes: Chapter 32: State-Based vs. Mock-Based #201: From Mock-Based to State-Based #200: To Kill a Mock #199: Cons