(Backport from r55770)
Bug #1728403: Fix a bug that CJKCodecs StreamReader hangs when it
reads a file that ends with incomplete sequence and sizehint argument
for .read() is specified.
diff --git a/Lib/test/test_multibytecodec.py b/Lib/test/test_multibytecodec.py
index a8666d3..dd933f3 100644
--- a/Lib/test/test_multibytecodec.py
+++ b/Lib/test/test_multibytecodec.py
@@ -136,6 +136,14 @@
self.assertRaises(UnicodeDecodeError, decoder.decode, '', True)
self.assertEqual(decoder.decode('B@$'), u'\u4e16')
+class Test_StreamReader(unittest.TestCase):
+ def test_bug1728403(self):
+ try:
+ open(TESTFN, 'w').write('\xa1')
+ f = codecs.open(TESTFN, encoding='cp949')
+ self.assertRaises(UnicodeDecodeError, f.read, 2)
+ finally:
+ os.unlink(TESTFN)
class Test_StreamWriter(unittest.TestCase):
if len(u'\U00012345') == 2: # UCS2
@@ -223,6 +231,7 @@
suite.addTest(unittest.makeSuite(Test_MultibyteCodec))
suite.addTest(unittest.makeSuite(Test_IncrementalEncoder))
suite.addTest(unittest.makeSuite(Test_IncrementalDecoder))
+ suite.addTest(unittest.makeSuite(Test_StreamReader))
suite.addTest(unittest.makeSuite(Test_StreamWriter))
suite.addTest(unittest.makeSuite(Test_ISO2022))
test_support.run_suite(suite)