OCUnit and iPhone Development

Has anybody here been able to successfully setup and run any Test Cases within an iPhone Application project? I have tried a few tutorials on setting this up, but whenever I try to run the Tests target I have set up, i get file not found errors for AppKit/AppKit.h and CoreData/CoreData.h. I tried adding those libraries to the project and importing those headers in my test class, but no dice.

It seems like the built in test frameworks are designed to work with regular CoCoa, perhapsthey ahven't been updated to work with a CoCoa Touch app?

Thanks