test_assets.py 文件源码

def test_sid_assignment(self):

        # This metadata does not contain SIDs
        metadata = ['PLAY', 'MSFT']

        today = normalize_date(pd.Timestamp('2015-07-09', tz='UTC'))

        # Write data with sid assignment
        self.env.write_data(equities_identifiers=metadata,
                            allow_sid_assignment=True)

        # Verify that Assets were built and different sids were assigned
        finder = self.asset_finder_type(self.env.engine)
        play = finder.lookup_symbol('PLAY', today)
        msft = finder.lookup_symbol('MSFT', today)
        self.assertEqual('PLAY', play.symbol)
        self.assertIsNotNone(play.sid)
        self.assertNotEqual(play.sid, msft.sid)