https://github.com/python/cpython/commit/e78280d0de81233b72ca4bc3c39fb7b1ada3a92c
commit: e78280d0de81233b72ca4bc3c39fb7b1ada3a92c
branch: 3.12
author: Miss Islington (bot) <31488909+miss-isling...@users.noreply.github.com>
committer: colesbury <colesb...@gmail.com>
date: 2025-03-24T20:59:03Z
summary:
[3.12] gh-131677: Fix flaky test_lru_cache_threaded3 (gh-131679) (gh-131693)
The call to `with self.subTest(...)` was not thread-safe.
(cherry picked from commit a1232459860235f4fb7896cc95966d87a51cbe32)
Co-authored-by: Sam Gross <colesb...@gmail.com>
files:
M Lib/test/test_functools.py
diff --git a/Lib/test/test_functools.py b/Lib/test/test_functools.py
index 873170116f43cf..cd7b8aac42c5e1 100644
--- a/Lib/test/test_functools.py
+++ b/Lib/test/test_functools.py
@@ -1756,8 +1756,7 @@ def f(x):
time.sleep(.01)
return 3 * x
def test(i, x):
- with self.subTest(thread=i):
- self.assertEqual(f(x), 3 * x, i)
+ self.assertEqual(f(x), 3 * x, i)
threads = [threading.Thread(target=test, args=(i, v))
for i, v in enumerate([1, 2, 2, 3, 2])]
with threading_helper.start_threads(threads):
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