[Python-checkins] gh-95212: make multiprocessing test case parallel-safe (GH-95213)

[miss-islington]

https://github.com/python/cpython/commit/40f41ba5f4f27a5e0949108286320c2057541643
commit: 40f41ba5f4f27a5e0949108286320c2057541643
branch: 3.10
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: miss-islington <31488909+miss-islington at users.noreply.github.com>
date: 2022-07-24T22:11:41-07:00
summary:

gh-95212: make multiprocessing test case parallel-safe (GH-95213)

(cherry picked from commit 5956de16cd00e7e1cf5cbf3d7b4a930eaa928321)

Co-authored-by: Christian Heimes <christian at python.org>

files:
A Misc/NEWS.d/next/Tests/2022-07-24-20-19-05.gh-issue-95212.fHiU4e.rst
M Lib/test/_test_multiprocessing.py

diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
index de1a99a2723d2..8dced90c53835 100644
--- a/Lib/test/_test_multiprocessing.py
+++ b/Lib/test/_test_multiprocessing.py
@@ -3910,7 +3910,7 @@ def test_shared_memory_recreate(self):
             'multiprocessing.shared_memory._make_filename') as mock_make_filename:
 
             NAME_PREFIX = shared_memory._SHM_NAME_PREFIX
-            names = ['test01_fn', 'test02_fn']
+            names = [self._new_shm_name('test03_fn'), self._new_shm_name('test04_fn')]
             # Prepend NAME_PREFIX which can be '/psm_' or 'wnsm_', necessary
             # because some POSIX compliant systems require name to start with /
             names = [NAME_PREFIX + name for name in names]
diff --git a/Misc/NEWS.d/next/Tests/2022-07-24-20-19-05.gh-issue-95212.fHiU4e.rst b/Misc/NEWS.d/next/Tests/2022-07-24-20-19-05.gh-issue-95212.fHiU4e.rst
new file mode 100644
index 0000000000000..44cea181cc1f1
--- /dev/null
+++ b/Misc/NEWS.d/next/Tests/2022-07-24-20-19-05.gh-issue-95212.fHiU4e.rst
@@ -0,0 +1,2 @@
+Make multiprocessing test case ``test_shared_memory_recreate``
+parallel-safe.