Aral Balkan

If you've ever tried to setup unit tests in Xcode, you'll know what a PITA they can be, especially when it comes to trying to debug your tests. Gabriel Handford’s GHUnit is a unit testing framework with its own user interface, and is well worth a look. You can make tests by subclassing GHTestCase, but it also supports SenTestCase and GTMTestCase subclasses, and I was able to get the ASIHTTPRequest tests up and running in no time at all. There’s even a UI for running tests in the iPhone simulator...

Useful little Cocoa helpers (categories).