Closes #27935: returned numeric value for 'FATAL' logging level.
diff --git a/Lib/test/test_logging.py b/Lib/test/test_logging.py
index 7899c77..ff0012b 100644
--- a/Lib/test/test_logging.py
+++ b/Lib/test/test_logging.py
@@ -309,6 +309,10 @@
         self.assertEqual(logging.getLevelName('INFO'), logging.INFO)
         self.assertEqual(logging.getLevelName(logging.INFO), 'INFO')
 
+    def test_issue27935(self):
+        fatal = logging.getLevelName('FATAL')
+        self.assertEqual(fatal, logging.FATAL)
+
 class BasicFilterTest(BaseTest):
 
     """Test the bundled Filter class."""