On the ZendCasts.com site today there's a new screencast posted about using the unit testing functionality that comes with the Zend Framework to unit test your Zend_Form instance.

This screencast will show you how to build a form for changing user passwords with 100% code coverage.

To follow along you can download the source code for this specific example or the entire project to see how it all fits in. If you're interested in other unit testing related topics, see their unit testing section.