def test_dryRunWithJobs(self):
        """
        L{_makeRunner} returns a L{TrialRunner} instance in C{DRY_RUN} mode
        when the C{--dry-run} option is passed, even if C{--jobs} is set.
        """
        self.options.parseOptions(["--jobs", "4", "--dry-run"])
        runner = trial._makeRunner(self.options)
        self.assertIsInstance(runner, TrialRunner)
        self.assertEqual(TrialRunner.DRY_RUN, runner.mode)

        L{_makeRunner} returns a L{TrialRunner} instance in C{DRY_RUN} mode
        when the C{--dry-run} option is passed, even if C{--jobs} is set.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/trial/test/test_script.py