def test_basicFormat(self):
        """
        Basic formattable event passes the format along correctly.
        """
        event = dict(log_format="Hello, {who}!", who="dude")
        records, output = self.logEvent(event)

        self.assertEqual(len(records), 1)
        self.assertEqual(str(records[0].msg), u"Hello, dude!")
        self.assertEqual(records[0].args, ())

        Basic formattable event passes the format along correctly.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/logger/test/test_stdlib.py