'Each L{FakeTransport} receives a serial number that uniquely identifies
it.'

def test_connectionSerial(self):

    a = FakeTransport(object(), True)
    b = FakeTransport(object(), False)
    self.assertIsInstance(a.serial, int)
    self.assertIsInstance(b.serial, int)
    self.assertNotEqual(a.serial, b.serial)
