[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, 15 deletions

diff --git a/Lib/test/test_decimal.py b/Lib/test/test_decimal.py
index 3f30a93..58f4df3 100644
--- a/Lib/test/test_decimal.py
+++ b/Lib/test/test_decimal.py
@@ -33,24 +33,14 @@ import unittest
 import numbers
 import locale
 from test.support import (run_unittest, run_doctest, is_resource_enabled,
-                          requires_IEEE_754, requires_docstrings)
-from test.support import (import_fresh_module, TestFailed,
+                          requires_IEEE_754, requires_docstrings,
+                          import_fresh_module, TestFailed,
                           run_with_locale, cpython_only,
-                          darwin_malloc_err_warning)
+                          darwin_malloc_err_warning,
+                          check_sanitizer)
 import random
 import inspect
 import threading
-import sysconfig
-_cflags = sysconfig.get_config_var('CFLAGS') or ''
-_config_args = sysconfig.get_config_var('CONFIG_ARGS') or ''
-MEMORY_SANITIZER = (
-    '-fsanitize=memory' in _cflags or
-    '--with-memory-sanitizer' in _config_args
-)
-
-ADDRESS_SANITIZER = (
-    '-fsanitize=address' in _cflags
-)
 
 
 if sys.platform == 'darwin':
@@ -5497,7 +5487,8 @@ class CWhitebox(unittest.TestCase):
     # Issue 41540:
     @unittest.skipIf(sys.platform.startswith("aix"),
                      "AIX: default ulimit: test is flaky because of extreme over-allocation")
-    @unittest.skipIf(MEMORY_SANITIZER or ADDRESS_SANITIZER, "sanitizer defaults to crashing "
+    @unittest.skipIf(check_sanitizer(address=True, memory=True),
+                     "ASAN/MSAN sanitizer defaults to crashing "
                      "instead of returning NULL for malloc failure.")
     def test_maxcontext_exact_arith(self):