From b6f6670d87f922564d535062dda42eb6d54d36af Mon Sep 17 00:00:00 2001
From: Vinay Sajip <vinay_sajip@yahoo.co.uk>
Date: Mon, 5 Mar 2012 09:43:47 +0000
Subject: Added more diagnostics for diagnosing #12151.

---
 Lib/test/test_logging.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Lib/test/test_logging.py b/Lib/test/test_logging.py
index 92e6994..b490b6e 100644
--- a/Lib/test/test_logging.py
+++ b/Lib/test/test_logging.py
@@ -3651,6 +3651,8 @@ class TimedRotatingFileHandlerTest(BaseFileTest):
     def test_rollover(self):
         fh = logging.handlers.TimedRotatingFileHandler(self.fn, 'S',
                                                        backupCount=1)
+        fmt = logging.Formatter('%(asctime)s %(message)s')
+        fh.setFormatter(fmt)
         r = logging.makeLogRecord({'msg': 'testing'})
         fh.emit(r)
         self.assertLogFile(self.fn)
-- 
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