I didn't really test them exclusively, I simply used some of the process listing functions. I guess making a dozen threads on two cpus and continuously calling some of the utility functions could be used as a kind of explorative testing, but I'm not familiar with systematically looking for problems ...

I'm using some untested functions because I like to live dangerously. I'd like to share the results of my testing efforts, is there a list if what should be tested to mark them as tested?