'Test the timeout functions of asks/bids'

def test_timeouts(self):

    self.order_book.insert_ask(self.ask)
    self.assertEqual(self.order_book.timeout_ask(self.ask.order_id), self.ask)
    self.order_book.insert_bid(self.bid)
    self.assertEqual(self.order_book.timeout_bid(self.bid.order_id), self.bid)
    self.order_book.on_invalid_tick_insert(None)
