Method test_dup

Lib/test/test_os.py:4808–4814

(self)

        self.assertEqual(os.get_inheritable(wfd), False)

    def test_dup(self):
        fd1 = os.open(__file__, os.O_RDONLY)
        self.addCleanup(os.close, fd1)

        fd2 = os.dup(fd1)
        self.addCleanup(os.close, fd2)
        self.assertEqual(os.get_inheritable(fd2), False)

    def test_dup_standard_stream(self):
        fd = os.dup(1)