gh-157354: Align sanitizer test placement and NEWS wording

Author: lpyu001

Lib/test/test_support.py

@@ -61,6 +61,26 @@ def _caplog():
 
 
 class TestSupport(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        orig_filter_len = len(warnings._get_filters())
+        cls._warnings_helper_token = support.ignore_deprecations_from(
+            "test.support.warnings_helper", like=".*used in test_support.*"
+        )
+        cls._test_support_token = support.ignore_deprecations_from(
+            __name__, like=".*You should NOT be seeing this.*"
+        )
+        assert len(warnings._get_filters()) == orig_filter_len + 2
+
+    @classmethod
+    def tearDownClass(cls):
+        orig_filter_len = len(warnings._get_filters())
+        support.clear_ignored_deprecations(
+            cls._warnings_helper_token,
+            cls._test_support_token,
+        )
+        assert len(warnings._get_filters()) == orig_filter_len - 2
+
     def test_check_sanitizer_config_args(self):
         sanitizers = (
             ('address', 'address'),
@@ -84,26 +104,6 @@ def test_check_sanitizer_config_args(self):
                             support.check_sanitizer(**{keyword: True}), expected
                         )
 
-    @classmethod
-    def setUpClass(cls):
-        orig_filter_len = len(warnings._get_filters())
-        cls._warnings_helper_token = support.ignore_deprecations_from(
-            "test.support.warnings_helper", like=".*used in test_support.*"
-        )
-        cls._test_support_token = support.ignore_deprecations_from(
-            __name__, like=".*You should NOT be seeing this.*"
-        )
-        assert len(warnings._get_filters()) == orig_filter_len + 2
-
-    @classmethod
-    def tearDownClass(cls):
-        orig_filter_len = len(warnings._get_filters())
-        support.clear_ignored_deprecations(
-            cls._warnings_helper_token,
-            cls._test_support_token,
-        )
-        assert len(warnings._get_filters()) == orig_filter_len - 2
-
     def test_ignored_deprecations_are_silent(self):
         """Test support.ignore_deprecations_from() silences warnings"""
         with warnings.catch_warnings(record=True) as warning_objs:

Misc/NEWS.d/next/Build/2026-09-12-15-33-26.gh-issue-157354.2hw6fe.rst

@@ -1,3 +1,2 @@
-Honor ``=no`` and ``--without-...`` for the AddressSanitizer,
-HWAddressSanitizer, MemorySanitizer, UndefinedBehaviorSanitizer, and
-ThreadSanitizer configure options without adding sanitizer flags.
+Fix the :samp:`--with-{name}-sanitizer=no` and :samp:`--without-{name}-sanitizer`
+:program:`configure` options enabling the sanitizer instead of disabling it.