on his KataCasts blog. ( click here to learn more about TDD katas Since Corey is an experienced TDD practitioner I was honored that he’d given it a go, and was eager to see the video. Later, corey asks for my remarks on it, which i will gladly put here. In general, Corey’s video is a great piece of TDD work to watch as an example of a master TDDer doing his thing. Everything flows gracefully