code: def testOrder(self):
      strat = self.createStrategy()
  
      o = strat.marketOrder(StrategyTestCase.TestInstrument, 1)
      strat.run()
      self.assertTrue(o.isFilled())
      self.assertEqual(strat.orderUpdatedCalls, 3)
  
imports: import datetime
  from .None import common
  from pyalgotrade import strategy
  from pyalgotrade import broker
  from pyalgotrade.barfeed import yahoofeed
label_desc: Use image node_id 1 for calling the StrategyOrderTestCase obj's underlying member method code with example usage: obj.testOrder() without return types