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Issue #12050: zlib.decompressobj().decompress() now clears the unconsumed_tail

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attribute when called without a max_length argument.
This commit is contained in:
Nadeem Vawda 2011-05-14 14:05:20 +02:00
parent eda199030b
commit 7619e88adb
3 changed files with 24 additions and 7 deletions
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9
Lib/test/test_zlib.py
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@ -350,6 +350,15 @@ class CompressObjectTestCase(BaseCompressTestCase, unittest.TestCase):
self.assertRaises(ValueError, dco.decompress, b"", -1)
self.assertEqual(b'', dco.unconsumed_tail)
def test_clear_unconsumed_tail(self):
# Issue #12050: calling decompress() without providing max_length
# should clear the unconsumed_tail attribute.
cdata = b"x\x9cKLJ\x06\x00\x02M\x01" # "abc"
dco = zlib.decompressobj()
ddata = dco.decompress(cdata, 1)
ddata += dco.decompress(dco.unconsumed_tail)
self.assertEqual(dco.unconsumed_tail, b"")
def test_flushes(self):
# Test flush() with the various options, using all the
# different levels in order to provide more variations.