Method checkError

Lib/test/test_regrtest.py:82–85

(self, args, msg)

        return cmdline._parse_args(args)

    def checkError(self, args, msg):
        with support.captured_stderr() as err, self.assertRaises(SystemExit):
            self.parse_args(args)
        self.assertIn(msg, err.getvalue())

    def test_help(self):
        for opt in '-h', '--help':