def test_jobsConflictWithExitFirst(self):
        """
        C{parseOptions} raises a C{UsageError} when C{--exitfirst} is passed
        along C{--jobs} as it's not supported yet.

        @see: U{http://twistedmatrix.com/trac/ticket/6436}
        """
        error = self.assertRaises(
            UsageError, self.options.parseOptions,
            ["--jobs", "4", "--exitfirst"])
        self.assertEqual(
            "You can't specify --exitfirst when using --jobs",
            str(error))

        C{parseOptions} raises a C{UsageError} when C{--exitfirst} is passed
        along C{--jobs} as it's not supported yet.

        @see: U{http://twistedmatrix.com/trac/ticket/6436}
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/trial/test/test_script.py