cpython@ce34410 (original) (raw)

`@@ -2529,6 +2529,36 @@ def test_pass_fds_inheritable(self):

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`self.assertEqual(os.get_inheritable(inheritable), True)

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`self.assertEqual(os.get_inheritable(non_inheritable), False)

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+

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bpo-32270: Ensure that descriptors specified in pass_fds

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are inherited even if they are used in redirections.

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Contributed by @izbyshev.

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def test_pass_fds_redirected(self):

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"""Regression test for https://bugs.python.org/issue32270."""

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fd_status = support.findfile("fd_status.py", subdir="subprocessdata")

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pass_fds = []

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for _ in range(2):

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fd = os.open(os.devnull, os.O_RDWR)

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self.addCleanup(os.close, fd)

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pass_fds.append(fd)

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+

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stdout_r, stdout_w = os.pipe()

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self.addCleanup(os.close, stdout_r)

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self.addCleanup(os.close, stdout_w)

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pass_fds.insert(1, stdout_w)

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+

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with subprocess.Popen([sys.executable, fd_status],

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stdin=pass_fds[0],

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stdout=pass_fds[1],

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stderr=pass_fds[2],

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close_fds=True,

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pass_fds=pass_fds):

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output = os.read(stdout_r, 1024)

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fds = {int(num) for num in output.split(b',')}

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+

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self.assertEqual(fds, {0, 1, 2} | frozenset(pass_fds), f"output={output!a}")

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+

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+

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`def test_stdout_stdin_are_single_inout_fd(self):

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`with io.open(os.devnull, "r+") as inout:

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`p = subprocess.Popen([sys.executable, "-c", "import sys; sys.exit(0)"],