[Python-checkins] bpo-40135: Fix multiprocessing test_shared_memory_across_processes() (GH-19892)

Miss Islington (bot) webhook-mailer at python.org
Mon May 4 11:25:30 EDT 2020


https://github.com/python/cpython/commit/70fe95cdc9ac1b00d4f86b7525dca80caf7003e1
commit: 70fe95cdc9ac1b00d4f86b7525dca80caf7003e1
branch: 3.8
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: GitHub <noreply at github.com>
date: 2020-05-04T08:25:22-07:00
summary:

bpo-40135: Fix multiprocessing test_shared_memory_across_processes() (GH-19892)


Don't define shared memory block's name in test_shared_memory_across_processes():
use SharedMemory(create=True) instead.
(cherry picked from commit caa3ef284a2e5e5b9bdd6a9e619804122c842d80)

Co-authored-by: Hai Shi <shihai1992 at gmail.com>

files:
M Lib/test/_test_multiprocessing.py

diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
index 5943dd83cc143..ff58481f00314 100644
--- a/Lib/test/_test_multiprocessing.py
+++ b/Lib/test/_test_multiprocessing.py
@@ -3828,7 +3828,9 @@ class OptionalAttachSharedMemory(shared_memory.SharedMemory):
         sms.close()
 
     def test_shared_memory_across_processes(self):
-        sms = shared_memory.SharedMemory('test02_tsmap', True, size=512)
+        # bpo-40135: don't define shared memory block's name in case of
+        # the failure when we run multiprocessing tests in parallel.
+        sms = shared_memory.SharedMemory(create=True, size=512)
         self.addCleanup(sms.unlink)
 
         # Verify remote attachment to existing block by name is working.



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