code: def testCSVFeedLoadOrder(self):
      barFeed = yahoofeed.Feed()
      barFeed.addBarsFromCSV(
          FeedTestCase.TestInstrument,
          common.get_data_file_path("orcl-2000-yahoofinance.csv"),
      )
      barFeed.addBarsFromCSV(
          FeedTestCase.TestInstrument,
          common.get_data_file_path("orcl-2001-yahoofinance.csv"),
      )
  
      # Dispatch and handle events.
      handler = BarFeedEventHandler_TestLoadOrder(
          self, barFeed, FeedTestCase.TestInstrument
      )
      barFeed.getNewValuesEvent().subscribe(handler.onBars)
      while not barFeed.eof():
          barFeed.dispatch()
      self.assertTrue(handler.getEventCount() > 0)
  
imports: import datetime
  from .None import common
  from .None import barfeed_test
  from .None import feed_test
  from pyalgotrade.utils import dt
  from pyalgotrade.barfeed import yahoofeed
  from pyalgotrade.barfeed import csvfeed
  from pyalgotrade import bar
  from pyalgotrade import marketsession
label_desc: Use image node_id 11 for calling the FeedTestCase obj's underlying member method code with example usage: obj.testCSVFeedLoadOrder() without return types