Learn the basics of test driven development (TDD) using Ruby. You will carry out problem domain analysis, solution domain analysis, designing test cases, and writing tests first. These fundamental concepts will give you a solid TDD foundation to build upon. Test Driven Development in Ruby is written by a developer for developers. The concepts are first explained, then a coding demo illustrates how to apply the theory in practice. At the end of each chapter an exercise is given to reinforce the material. Complete with working files and code samples, you'll be able to work alongside the author, a trainer, by following the material in this book.
What You Will Learn
Who This Book Is For Experienced Ruby programmers or web developers with some prior experience with Ruby.
In my opinion, it did a better job at explaining TDD and how to go about it than "Test Driven Development by Example", and the code listings were very exciting (you get to implement the backbone of Conway's Game of Life in a TDD fashion in one of the chapters, which was very nice).
The only reason I'm removing a star is that the editing is not as good as it could have been, and the English used at certain parts looks a bit ungrammatical to me.
Recommended though - it's a project based book, and the code listings work perfectly.