[3.9] bpo-40360: Handle PendingDeprecationWarning in test_lib2to3. (GH-21694) (GH-21697)
(cherry picked from commit cadda52d974937069eeebea1cca4229e2bd400df)
Co-authored-by: Karthikeyan Singaravelan <tir.karthi@gmail.com>
diff --git a/Lib/test/test_lib2to3.py b/Lib/test/test_lib2to3.py
index 5eaa516..15c317e 100644
--- a/Lib/test/test_lib2to3.py
+++ b/Lib/test/test_lib2to3.py
@@ -1,5 +1,8 @@
-from lib2to3.tests import load_tests
import unittest
+from test.support import check_warnings
+
+with check_warnings(("", PendingDeprecationWarning)):
+ from lib2to3.tests import load_tests
if __name__ == '__main__':
unittest.main()