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bpo-41818: Close file descriptors in test_openpty #24119

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Merged
encukou merged 3 commits into from
Jan 19, 2021
Merged

bpo-41818: Close file descriptors in test_openpty #24119

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c24e78d
bpo-41818: Close file descriptors in test_openpty
encukou Jan 5, 2021
b7eb9e8
Instead of the big indent, use self.addCleanup
encukou Jan 5, 2021
494fd7b
Clean up also in test_master_read and test_fork
encukou Jan 12, 2021
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12 changes: 6 additions & 6 deletions Lib/test/test_pty.py
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Original file line number Diff line number Diff line change
Expand Up @@ -176,6 +176,12 @@ def test_openpty(self):
# " An optional feature could not be imported " ... ?
raise unittest.SkipTest("Pseudo-terminals (seemingly) not functional.")

# closing master_fd can raise a SIGHUP if the process is
# the session leader: we installed a SIGHUP signal handler
# to ignore this signal.
self.addCleanup(os.close, master_fd)
self.addCleanup(os.close, slave_fd)

self.assertTrue(os.isatty(slave_fd), "slave_fd is not a tty")

if mode:
Expand Down Expand Up @@ -218,12 +224,6 @@ def test_openpty(self):
s2 = _readline(master_fd)
self.assertEqual(b'For my pet fish, Eric.\n', normalize_output(s2))

os.close(slave_fd)
# closing master_fd can raise a SIGHUP if the process is
# the session leader: we installed a SIGHUP signal handler
# to ignore this signal.
os.close(master_fd)

def test_fork(self):
debug("calling pty.fork()")
pid, master_fd = pty.fork()
Expand Down