It's the first time I runned test in an env with wdiff installed and it seems like it doesn't work properly. The *wdiff.html files are either empty or contains "Failed to run PrettyPatch, see error log." I don't know where is the error log. I runned the tests with a clean trunk Qt build.
I suspect your'e missing ruby. In order to see the fancy diffs, you need either wdiff or ruby available in your path.
I'm happy to help you debug, and/or improve the error reporting. Catch me on #webkit.
I have both ruby and wdiff. The pretty patch format works fine, the wdiff one is empty.
is this still an issue?
I think this is/was maybe a duplicate of bug 59714 ... at any rate, it looks like the wdiff output is currently working. Let me know if this is not the case for you. *** This bug has been marked as a duplicate of bug 59714 ***