Joel: I would love to do the acs-automated-testing integration of tclwebtest, but realistically won't find time for that before the end of this year. But I don't see that it is that urgent, it's a 5.1 thing anyway.
And yes, we need to think about the locations for the .test files, and propably more about complex dependencies of tests since black box client tests test to have more dependencies like inserting test data before running stuff etc., compared to api unit tests.
I hope I did not contradict you (Joel) when saying that tclwebtest isn't used for automated installation under normal circumstances. In my opinion it shouldn't, but I haven't looked closely at etc/install/ yet.