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bpo-31160: test_tempfile: Fix reap_children() warning (#3056)

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TestRandomNameSequence.test_process_awareness() now calls
os.waitpid() to avoid leaking a zombie process.
This commit is contained in:
Victor Stinner 2017-08-10 13:05:06 +02:00 committed by GitHub
parent 7b7c6dcfff
commit 6c8c2943d9
1 changed files with 7 additions and 1 deletions
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8
Lib/test/test_tempfile.py
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@ -78,7 +78,6 @@ class BaseTestCase(unittest.TestCase):
def tearDown(self):
self._warnings_manager.__exit__(None, None, None)
def nameCheck(self, name, dir, pre, suf):
(ndir, nbase) = os.path.split(name)
npre = nbase[:len(pre)]
@ -184,12 +183,15 @@ class TestRandomNameSequence(BaseTestCase):
try:
pid = os.fork()
if not pid:
# child process
os.close(read_fd)
os.write(write_fd, next(self.r).encode("ascii"))
os.close(write_fd)
# bypass the normal exit handlers- leave those to
# the parent.
os._exit(0)
# parent process
parent_value = next(self.r)
child_value = os.read(read_fd, len(parent_value)).decode("ascii")
finally:
@ -200,6 +202,10 @@ class TestRandomNameSequence(BaseTestCase):
os.kill(pid, signal.SIGKILL)
except OSError:
pass
# Read the process exit status to avoid zombie process
os.waitpid(pid, 0)
os.close(read_fd)
os.close(write_fd)
self.assertNotEqual(child_value, parent_value)