testing roadmap for fio

I would like to undertake an effort to contribute more regression tests to fio.

My initial thought is to add more jobs to t/jobs. Unlike the jobs currently there, these new jobs would not target specific bugs. Instead, the jobs would exercise a variety of fio's options and use run-fio-tests.py to examine the JSON output to confirm that the options specified were appropriately respected.

Does this sound like a reasonable approach? Are there better directions to focus my efforts?

Vincent