On the ServerGrove blog there's a new post spotlighting one of the Symfony plugins they think is interesting - the sfBehatPlugin, an interface into the Behat system for behavior-driven development.

Quality assurance (QA) is one of the most difficult things to implement around software development. Most of time it is left for the final phase of development and very often overlooked entirely. As many experienced web development teams already know, QA needs to be part of the development process from the get-go. [...] Behavior development/testing is just one aspect of quality assurance.

They briefly touch on the installation of the plugin (Symfony plugins are usually pretty easy to get set up) and link to the project's homepage for more references on some of the basics of using it to act as a browser, parse the response and use forms on a page.