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Issue #16764: Support keyword arguments to zlib.decompress(). Patch by

Browse source 
Xiang Zhang.
This commit is contained in:
Serhiy Storchaka 2016-08-15 10:06:16 +03:00
parent eb24988962
commit 15f3228b7c
5 changed files with 61 additions and 25 deletions
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33
Lib/test/test_zlib.py
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@ -169,6 +169,14 @@ class CompressTestCase(BaseCompressTestCase, unittest.TestCase):
self.assertEqual(zlib.decompress(x), HAMLET_SCENE)
with self.assertRaises(TypeError):
zlib.compress(data=HAMLET_SCENE, level=3)
self.assertEqual(zlib.decompress(x,
wbits=zlib.MAX_WBITS,
bufsize=zlib.DEF_BUF_SIZE),
HAMLET_SCENE)
with self.assertRaises(TypeError):
zlib.decompress(data=x,
wbits=zlib.MAX_WBITS,
bufsize=zlib.DEF_BUF_SIZE)
def test_speech128(self):
# compress more data
@ -240,6 +248,27 @@ class CompressObjectTestCase(BaseCompressTestCase, unittest.TestCase):
self.assertIsInstance(dco.unconsumed_tail, bytes)
self.assertIsInstance(dco.unused_data, bytes)
def test_keywords(self):
level = 2
method = zlib.DEFLATED
wbits = -12
memLevel = 9
strategy = zlib.Z_FILTERED
co = zlib.compressobj(level=level,
method=method,
wbits=wbits,
memLevel=memLevel,
strategy=strategy,
zdict=b"")
do = zlib.decompressobj(wbits=wbits, zdict=b"")
with self.assertRaises(TypeError):
co.compress(data=HAMLET_SCENE)
with self.assertRaises(TypeError):
do.decompress(data=zlib.compress(HAMLET_SCENE))
x = co.compress(HAMLET_SCENE) + co.flush()
y = do.decompress(x, max_length=len(HAMLET_SCENE)) + do.flush()
self.assertEqual(HAMLET_SCENE, y)
def test_compressoptions(self):
# specify lots of options to compressobj()
level = 2
@ -255,10 +284,6 @@ class CompressObjectTestCase(BaseCompressTestCase, unittest.TestCase):
y2 = dco.flush()
self.assertEqual(HAMLET_SCENE, y1 + y2)
# keyword arguments should also be supported
zlib.compressobj(level=level, method=method, wbits=wbits,
memLevel=memLevel, strategy=strategy, zdict=b"")
def test_compressincremental(self):
# compress object in steps, decompress object as one-shot
data = HAMLET_SCENE * 128