def test_purge_message(self):
c = Channel(1)
self.assertEqual(0, len(c.messageQueue))
c.publish("data")
self.assertEqual(1, len(c.messageQueue))
c.purgeMessageQueue()
self.assertEqual(1, len(c.messageQueue))
time.sleep(1)
c.purgeMessageQueue()
self.assertEqual(0, len(c.messageQueue))
