Hi Herman,
Although I have some issues with some unit tests I submitted a patch [1] with what I was capable to fix so that after your feedback I can move on. Please have a look and give your feedback.
Another thing I noticed in the mailing-list was about a new interface testing tool called sahi [2]. The mail was sent by Michal and I had a look into it and seems it is a nice tool and we can easily improve the test coverage.
Thanks and Regards,
Kasun