[Python-checkins] cpython (3.4): Issue #22853: Added regression test for using multiprocessing.Queue at import
serhiy.storchaka
python-checkins at python.org
Fri Mar 6 22:35:36 CET 2015
https://hg.python.org/cpython/rev/cf12856bde17
changeset: 94886:cf12856bde17
branch: 3.4
parent: 94883:72b08d351a9b
user: Serhiy Storchaka <storchaka at gmail.com>
date: Fri Mar 06 23:32:54 2015 +0200
summary:
Issue #22853: Added regression test for using multiprocessing.Queue at import
time. Patch by Davin Potts.
files:
Lib/test/_test_multiprocessing.py | 21 +++++++++++++++++++
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
--- a/Lib/test/_test_multiprocessing.py
+++ b/Lib/test/_test_multiprocessing.py
@@ -713,6 +713,27 @@
for p in workers:
p.join()
+ def test_no_import_lock_contention(self):
+ with test.support.temp_cwd():
+ module_name = 'imported_by_an_imported_module'
+ with open(module_name + '.py', 'w') as f:
+ f.write("""if 1:
+ import multiprocessing
+
+ q = multiprocessing.Queue()
+ q.put('knock knock')
+ q.get(timeout=3)
+ q.close()
+ del q
+ """)
+
+ with test.support.DirsOnSysPath(os.getcwd()):
+ try:
+ __import__(module_name)
+ except pyqueue.Empty:
+ self.fail("Probable regression on import lock contention;"
+ " see Issue #22853")
+
def test_timeout(self):
q = multiprocessing.Queue()
start = time.time()
--
Repository URL: https://hg.python.org/cpython
More information about the Python-checkins
mailing list