http://peepcode.com/articles/2006/11/26/test-first-development
http://topfunky.com/clients/peepcode/previews/peepcode-004-testing-tips.movhttp://topfunky.com/clients/peepcode/REST-preview.mov
Test-first development can improve your workflow, improve the quality of your software, and give you confidence.
If you have looked at the “test” directory sitting at the bottom of your Rails applications and have wondered what it’s there for, this is the screencast for you!
This screencast walks through the basics of writing a simple application with the principles of test-first and behavior-driven development. You’ll use the features already built into Rails and learn how to extend it for your own needs, too.
The download includes the actual code discussed in the screencast (recently updated for Rails 1.2.2). Rails 1.2.2 is used for the project but most of the content applies to any current version of Rails.
NOTE: Advanced or cutting edge topics such as rSpec and Test::Rails are not discussed in this screencast but will be covered in a future episode.