def test_specialUnloadSequence(self):
        self.rdm.basketCaseReceived(None, [0, [[athena.UNLOAD, [athena.CLOSE, []]]]])
        self.assertEqual(self.outgoingMessages, [(None, [athena.CLOSE, []])])
When the page is unloading in the brosser, it needs to pre-empt its own
dataset/ETHPy150Open twisted/nevow/nevow/test/test_athena.py/Transport.test_specialUnloadSequence