On the Avnet Labs blog today Ekerete has kicked off a new series looking specifically at using test-driven design to create Zend Framework-based applications:

However, as useful as the series [from Jani Hartikainen on TTD] is, it doesn't provide answers to Zend Framework specific testing issues (and considering all the ZF-specific posts on his site, that's quite surprising). [...] In the coming weeks, I'll put together a how-to on testing ZF applications using a Test Driven Development (TDD) approach. With TDD tests are written first and as such the test suite guides the design of the production code.

He shows how to set up a sample application, the Jira Base, and how to set up a simple base-level test.