From: Victor Stinner <vstinner@python.org>
Date: Thu, 4 Jul 2024 17:38:30 +0000 (+0200)
Subject: gh-121084: Fix test_typing random leaks (#121360)
X-Git-Tag: v3.14.0a1~1222
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=5f660e8e2ca3acfb89ccbdd990f072149b6baa6a;p=thirdparty%2FPython%2Fcpython.git

gh-121084: Fix test_typing random leaks (#121360)

Clear typing ABC caches when running tests for refleaks (-R option):
call _abc_caches_clear() on typing abstract classes and their
subclasses.
---

diff --git a/Lib/test/libregrtest/utils.py b/Lib/test/libregrtest/utils.py
index 0197e50125d9..2a3449016fe9 100644
--- a/Lib/test/libregrtest/utils.py
+++ b/Lib/test/libregrtest/utils.py
@@ -264,6 +264,12 @@ def clear_caches():
         for f in typing._cleanups:
             f()
 
+        import inspect
+        abs_classes = filter(inspect.isabstract, typing.__dict__.values())
+        for abc in abs_classes:
+            for obj in abc.__subclasses__() + [abc]:
+                obj._abc_caches_clear()
+
     try:
         fractions = sys.modules['fractions']
     except KeyError:
diff --git a/Misc/NEWS.d/next/Tests/2024-07-04-15-10-29.gh-issue-121084.qxcd5d.rst b/Misc/NEWS.d/next/Tests/2024-07-04-15-10-29.gh-issue-121084.qxcd5d.rst
new file mode 100644
index 000000000000..b91ea8acfadb
--- /dev/null
+++ b/Misc/NEWS.d/next/Tests/2024-07-04-15-10-29.gh-issue-121084.qxcd5d.rst
@@ -0,0 +1,3 @@
+Fix test_typing random leaks. Clear typing ABC caches when running tests for
+refleaks (``-R`` option): call ``_abc_caches_clear()`` on typing abstract
+classes and their subclasses. Patch by Victor Stinner.