Method test_args_argument

Lib/test/_test_multiprocessing.py:400–418

(self)

    @warnings_helper.ignore_fork_in_thread_deprecation_warnings()
    @support.requires_resource('cpu')
    def test_args_argument(self):
        # bpo-45735: Using list or tuple as *args* in constructor could
        # achieve the same effect.
        args_cases = (1, "str", [1], (1,))
        args_types = (list, tuple)

        test_cases = itertools.product(args_cases, args_types)

        for args, args_type in test_cases:
            with self.subTest(args=args, args_type=args_type):
                q = self.Queue(1)
                # pass a tuple or list as args
                p = self.Process(target=self._test_args, args=args_type((q, args)))
                p.daemon = True
                p.start()
                child_args = q.get()
                self.assertEqual(child_args, args)
                p.join()
                close_queue(q)

    @classmethod
    def _test_args(cls, q, arg):