Method test_sys_exit

Lib/test/_test_multiprocessing.py:1130–1168

(self)

    @warnings_helper.ignore_fork_in_thread_deprecation_warnings()
    def test_sys_exit(self):
        # See Issue 13854
        if self.TYPE == 'threads':
            self.skipTest('test not appropriate for {}'.format(self.TYPE))

        testfn = os_helper.TESTFN
        self.addCleanup(os_helper.unlink, testfn)

        for reason in (
            [1, 2, 3],
            'ignore this',
        ):
            p = self.Process(target=self._test_sys_exit, args=(reason, testfn))
            p.daemon = True
            p.start()
            join_process(p)
            self.assertEqual(p.exitcode, 1)

            with open(testfn, encoding="utf-8") as f:
                content = f.read()
            self.assertEqual(content.rstrip(), str(reason))

            os.unlink(testfn)

        cases = [
            ((True,), 1),
            ((False,), 0),
            ((8,), 8),
            ((None,), 0),
            ((), 0),
            ]

        for args, expected in cases:
            with self.subTest(args=args):
                p = self.Process(target=sys.exit, args=args)
                p.daemon = True
                p.start()
                join_process(p)
                self.assertEqual(p.exitcode, expected)

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