For what I can gather, the observer method in that test is being
called 9 times (console.log in the observer). So that "explains" the 8
failures and still showing up green. I added the console.log in the
first test ("testCustomEventFiring") and it only calls it once, so it
seems there's some poblem when extending the nodes, but after digging
a bit through the source I couldn't find it, and the event handling
was never the part of the source I grokked the most, so ... I'll keep
looking for the problem, but maybe someone else can find it faster :)
Best
-Nicolas