When trying to use simpletest with include paths it chokes. I wouldn't normally consider this a defect but it looks like the only reason it is not working is simpleFileLoader::_scrapeClassesFromFile() ? It looks like the rest of the time that path is used is thru includes / autoloading.
From the method's docblock
"This is probably too clever by half. Figuring this
* out after a failed test case is going to be tricky for us,
* never mind the user. A test case should not be included
* twice anyway."
I concur ;-)
Do you have an example or a failing test case ? It's always easier that way to trace the defect and eventually fix something.
Yours