That makes sense -- my seems-to-work solution appears to be using FuncUnit's internal jQuery. I initial tried using Syn directly, but (as you suggest) I couldn't get it to send synthetic events.
It looks like I'm using jQuery 1.9.1 in both the qunit page and the test window. (I can remove jQuery from the test window without any problems, though, as it was only needed for that .trigger())
It looks like I'm using jQuery 1.9.1 in both the qunit page and the test window. (I can remove jQuery from the test window without any problems, though, as it was only needed for that .trigger())