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

The ASAN job of GitHub Actions no longer excludes these tests.

1 files changed, 6 insertions, 0 deletions

diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
index 6b1b1677910..bb73d9e7cc7 100644
--- a/Lib/test/_test_multiprocessing.py
+++ b/Lib/test/_test_multiprocessing.py
@@ -73,6 +73,12 @@ 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')