Attempt fix of #11557 by refining test logic.
diff --git a/Lib/test/test_logging.py b/Lib/test/test_logging.py
index 33bd845..45546cb 100644
--- a/Lib/test/test_logging.py
+++ b/Lib/test/test_logging.py
@@ -2453,7 +2453,7 @@
         self.assertIsInstance(formatter._style, logging.PercentStyle)
 
         # level is not explicitely set
-        self.assertEqual(logging.root.level, logging.WARNING)
+        self.assertEqual(logging.root.level, self.original_logging_level)
 
     def test_filename(self):
         logging.basicConfig(filename='test.log')