Merged revisions 80777 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r80777 | victor.stinner | 2010-05-05 14:40:49 +0200 (mer., 05 mai 2010) | 3 lines

  Issue #8313: traceback.format_exception_only() encodes unicode message to
  ASCII with backslashreplace error handler if str(value) failed
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diff --git a/Lib/test/test_traceback.py b/Lib/test/test_traceback.py
index 1c067d7..6ef70a6 100644
--- a/Lib/test/test_traceback.py
+++ b/Lib/test/test_traceback.py
@@ -168,6 +168,15 @@
         err = traceback.format_exception_only(None, None)
         self.assertEqual(err, ['None\n'])
 
+    def test_unicode(self):
+        err = AssertionError('\xff')
+        lines = traceback.format_exception_only(type(err), err)
+        self.assertEqual(lines, ['AssertionError: \xff\n'])
+
+        err = AssertionError(u'\xe9')
+        lines = traceback.format_exception_only(type(err), err)
+        self.assertEqual(lines, ['AssertionError: \\xe9\n'])
+
 
 class TracebackFormatTests(unittest.TestCase):