Today I created an Open Source project called TestCpp. It's a very simple JUnit-like C++ unit testing framework, and I'll be adding more to it in the near future.
I really wrote it because I'm working on another open source project, and I wanted to write some unit tests in C++; I quickly got frustrated with everything I had to do to get it going. With TestCpp you should be able to write your C++ unit tests and actually execute them in no time.
There was already a project hosted on google code named testcpp (or test++), it's an easy-to-use jUnit like C++ xUnit testing framework. Hopefully it's usefull for you.