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bpo-35372: Fix the code page decoder for input > 2 GiB. (GH-10848)

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Serhiy Storchaka 2018-12-03 10:36:45 +02:00 • committed by GitHub
parent 062cbb6772
commit 4013c17911
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3 changed files with 24 additions and 5 deletions
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18
Lib/test/test_codecs.py
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@ -3190,6 +3190,24 @@ class CodePageTest(unittest.TestCase):
codec = codecs.lookup('cp123')
self.assertEqual(codec.name, 'mbcs')
@support.bigmemtest(size=2**31, memuse=7, dry_run=False)
def test_large_input(self):
# Test input longer than INT_MAX.
# Input should contain undecodable bytes before and after
# the INT_MAX limit.
encoded = (b'01234567' * (2**28-1) +
b'\x85\x86\xea\xeb\xec\xef\xfc\xfd\xfe\xff')
self.assertEqual(len(encoded), 2**31+2)
decoded = codecs.code_page_decode(932, encoded, 'surrogateescape', True)
self.assertEqual(decoded[1], len(encoded))
del encoded
self.assertEqual(len(decoded[0]), decoded[1])
self.assertEqual(decoded[0][:10], '0123456701')
self.assertEqual(decoded[0][-20:],
'6701234567'
'\udc85\udc86\udcea\udceb\udcec'
'\udcef\udcfc\udcfd\udcfe\udcff')
class ASCIITest(unittest.TestCase):
def test_encode(self):