[3.10] bpo-46633: Skip tests on ASAN and/or MSAN builds (GH-31632) (GH-31634) (GH-31644)

* Refactor sanitiser skip tests into test.support (GH-30889)

* Refactor sanitizer skip tests into test.support

(cherry picked from commit b1cb8430504931f7854eac5d32cba74770078a4e)

* Add skips to crashing tests under sanitizers instead of manually skipping them (GH-30897)

(cherry picked from commit a27505345e34d462139f5f8b6b5e7c9a59955150)

* bpo-46633: Skip tests on ASAN and/or MSAN builds (GH-31632)

Skip tests on ASAN and/or MSAN builds:

* multiprocessing tests
* test___all__
* test_concurrent_futures
* test_decimal
* test_peg_generator
* test_tools

(cherry picked from commit 9204bb72a2da5885facc747e63d2bd2d654606fe)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
(cherry picked from commit 93264452d952d9ba604bacf2947c2df5dd477931)

1 files changed, 6 insertions, 0 deletions

diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
index 3ae0cb9..bcbf567 100644
--- a/Lib/test/_test_multiprocessing.py
+++ b/Lib/test/_test_multiprocessing.py
@@ -69,6 +69,12 @@ except ImportError:
     msvcrt = None
 
 
+if support.check_sanitizer(address=True):
+    # bpo-45200: Skip multiprocessing tests if Python is built with ASAN to
+    # work around a libasan race condition: dead lock in pthread_create().
+    raise unittest.SkipTest("libasan has a pthread_create() dead lock")
+
+
 def latin(s):
     return s.encode('latin')