Rails Test Prescriptions is out of beta, and will start shipping in the next day or so. It’s a comprehensive guide to testing Rails applications, covering Test-Driven Development from both a theoretical perspective (why to test) and from a practical perspective (how to test effectively). It covers the core Rails testing tools and procedures for Rails 2 and Rails 3, and introduces popular add-ons, including RSpec, Shoulda, Cucumber, Factory Girl, and Rcov. Thanks to all of you that have been supportive!