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-rw-r--r--Lib/test/test_multibytecodec.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/Lib/test/test_multibytecodec.py b/Lib/test/test_multibytecodec.py
index 2f64867..1d9d9e35 100644
--- a/Lib/test/test_multibytecodec.py
+++ b/Lib/test/test_multibytecodec.py
@@ -112,6 +112,10 @@ class Test_IncrementalEncoder(unittest.TestCase):
self.assertRaises(UnicodeEncodeError, encoder.encode, '\u0123')
self.assertEqual(encoder.encode('', True), b'\xa9\xdc')
+ def test_issue5640(self):
+ encoder = codecs.getincrementalencoder('shift-jis')('backslashreplace')
+ self.assertEqual(encoder.encode('\xff'), b'\\xff')
+ self.assertEqual(encoder.encode('\n'), b'\n')
class Test_IncrementalDecoder(unittest.TestCase):