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bpo-32369: test_subprocess: Fix pass_fds check in test_close_fds() (#4920)

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The last part of test_close_fds() doesn't match its own comment.
The following assertion always holds because fds_to_keep and open_fds
are disjoint by construction.

self.assertFalse(remaining_fds & fds_to_keep & open_fds,
                 "Some fds not in pass_fds were left open")

Fix the code to match the message in the assertion.
This commit is contained in:
izbyshev 2017-12-19 03:26:49 +07:00 • committed by Gregory P. Smith
parent 02e4b7f354
commit 2d8f06382e
1 changed files with 2 additions and 2 deletions
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4
Lib/test/test_subprocess.py
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@ -2290,11 +2290,11 @@ class POSIXProcessTestCase(BaseTestCase):
fds_to_keep = set(open_fds.pop() for _ in range(8))
p = subprocess.Popen([sys.executable, fd_status],
stdout=subprocess.PIPE, close_fds=True,
pass_fds=())
pass_fds=fds_to_keep)
output, ignored = p.communicate()
remaining_fds = set(map(int, output.split(b',')))
self.assertFalse(remaining_fds & fds_to_keep & open_fds,
self.assertFalse((remaining_fds - fds_to_keep) & open_fds,
"Some fds not in pass_fds were left open")
self.assertIn(1, remaining_fds, "Subprocess failed")