Following last month's article by Ian, here's some thoughts on how to test a Zend Framework application.

One of the unit testing best practices suggests to break dependencies, so you can test each component separately.

The first problem that arises when you want to test controllers might be having a tighter control over the HTTP Request and Response objects. Fortunately, ZF already has something that really makes your life easier, i.e. the Zend_Test_PHPUnit_ControllerTestCase class, which has stubs for the Request and Response
objects, and you can easily check headers, return codes, routes, redirects, and even the view itself.