Issue #20242: Fixed basicConfig() format strings for the alternative formatting styles.

1 files changed, 16 insertions, 0 deletions

diff --git a/Lib/test/test_logging.py b/Lib/test/test_logging.py
index 8c6e6b8..814f68c 100644
--- a/Lib/test/test_logging.py
+++ b/Lib/test/test_logging.py
@@ -3337,6 +3337,22 @@ class BasicConfigTest(unittest.TestCase):
         # level is not explicitly set
         self.assertEqual(logging.root.level, self.original_logging_level)
 
+    def test_strformatstyle(self):
+        with captured_stdout() as output:
+            logging.basicConfig(stream=sys.stdout, style="{")
+            logging.error("Log an error")
+            sys.stdout.seek(0)
+            self.assertEqual(output.getvalue().strip(),
+                "ERROR:root:Log an error")
+
+    def test_stringtemplatestyle(self):
+        with captured_stdout() as output:
+            logging.basicConfig(stream=sys.stdout, style="$")
+            logging.error("Log an error")
+            sys.stdout.seek(0)
+            self.assertEqual(output.getvalue().strip(),
+                "ERROR:root:Log an error")
+
     def test_filename(self):
         logging.basicConfig(filename='test.log')