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Issue #18623: Factor out the _SuppressCoreFiles context manager into test.support.

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Patch by Valerie Lambert.
This commit is contained in:
Antoine Pitrou 2013-09-06 20:50:00 +02:00
parent 4a0430166b
commit b0478b3f5f
4 changed files with 50 additions and 46 deletions
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47
Lib/test/test_subprocess.py
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@ -18,10 +18,6 @@ import shutil
import gc
import textwrap
try:
import resource
except ImportError:
resource = None
try:
import threading
except ImportError:
@ -1147,47 +1143,6 @@ class ProcessTestCase(BaseTestCase):
fds_after_exception = os.listdir(fd_directory)
self.assertEqual(fds_before_popen, fds_after_exception)
# context manager
class _SuppressCoreFiles(object):
"""Try to prevent core files from being created."""
old_limit = None
def __enter__(self):
"""Try to save previous ulimit, then set it to (0, 0)."""
if resource is not None:
try:
self.old_limit = resource.getrlimit(resource.RLIMIT_CORE)
resource.setrlimit(resource.RLIMIT_CORE, (0, self.old_limit[1]))
except (ValueError, resource.error):
pass
if sys.platform == 'darwin':
# Check if the 'Crash Reporter' on OSX was configured
# in 'Developer' mode and warn that it will get triggered
# when it is.
#
# This assumes that this context manager is used in tests
# that might trigger the next manager.
value = subprocess.Popen(['/usr/bin/defaults', 'read',
'com.apple.CrashReporter', 'DialogType'],
stdout=subprocess.PIPE).communicate()[0]
if value.strip() == b'developer':
print("this tests triggers the Crash Reporter, "
"that is intentional", end='')
sys.stdout.flush()
def __exit__(self, *args):
"""Return core file behavior to default."""
if self.old_limit is None:
return
if resource is not None:
try:
resource.setrlimit(resource.RLIMIT_CORE, self.old_limit)
except (ValueError, resource.error):
pass
@unittest.skipIf(mswindows, "POSIX specific tests")
class POSIXProcessTestCase(BaseTestCase):
@ -1276,7 +1231,7 @@ class POSIXProcessTestCase(BaseTestCase):
def test_run_abort(self):
# returncode handles signal termination
with _SuppressCoreFiles():
with support.SuppressCoreFiles():
p = subprocess.Popen([sys.executable, "-c",
'import os; os.abort()'])
p.wait()