Test-infected? Kind of
I've been spending increasing amounts of time recently getting to grips with Unit Testing and the Test-Driven "way". It can be hugely satisfying, but more often than not I'm finding it painfully frustrating. Don't get me wrong, I know it's the right way to go about things, I don't need any convincing. I did some growing up in public thanks to the lovely Advanced-PHP folks at Sitepoint, but I'm not there yet.
The best fully Test-Driven code I've managed so far is PHPTuring, and I'm trying to rewrite Briolette using TDD, but it's slow going. (If anyone of any talent is interested in helping develop a TDD MVC framework in PHP5, I'd be interested to hear from you).
Still, you can't beat that glow you get when you tame a nasty old piece of code with a couple of Unit Tests. Today with the help of Marcus Baker's excellent SimpleTest we did exactly that, and replaced about 40 lines of mission-critical cruft with a single regex. The confidence to do that simply wouldn't have been there were it not for the Tests.