'Test that an exception which is a subclass of L{pb.Error} has more
information passed across the network to the calling side.'

def test_jellyFailure(self):

    def failureJelly(fail):
        fail.trap(JellyError)
        self.assertNotIsInstance(fail.type, str)
        self.assertIsInstance(fail.value, fail.type)
        return 43
    return self._testImpl('jelly', 43, failureJelly)
