'Basic unit tests for the MarketOrder class.'

def test_market_order_prices(self):

    style = MarketOrder()
    self.assertEqual(style.get_limit_price(True), None)
    self.assertEqual(style.get_limit_price(False), None)
    self.assertEqual(style.get_stop_price(True), None)
    self.assertEqual(style.get_stop_price(False), None)
