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Patch #441091 from Finn Bock: the more advanced flush options are not

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available in java, so only use the advanced flush options if they
  are defined in the zlib module.
This commit is contained in:
Andrew M. Kuchling 2001-08-10 15:50:11 +00:00
parent 315cd29ecf
commit fcfc8d5c0e
1 changed files with 20 additions and 15 deletions
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35
Lib/test/test_zlib.py
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@ -78,7 +78,10 @@ else:
# Test flush() with the various options, using all the different levels # Test flush() with the various options, using all the different levels
# in order to provide more variations. # in order to provide more variations.
for sync in [zlib.Z_NO_FLUSH, zlib.Z_SYNC_FLUSH, zlib.Z_FULL_FLUSH]: sync_opt = ['Z_NO_FLUSH', 'Z_SYNC_FLUSH', 'Z_FULL_FLUSH']
sync_opt = [getattr(zlib, opt) for opt in sync_opt if hasattr(zlib, opt)]
for sync in sync_opt:
for level in range(10): for level in range(10):
obj = zlib.compressobj( level ) obj = zlib.compressobj( level )
d = obj.compress( buf[:3000] ) d = obj.compress( buf[:3000] )
@ -96,23 +99,25 @@ random.seed(1)
print 'Testing on 17K of random data' print 'Testing on 17K of random data'
# Create compressor and decompressor objects if hasattr(zlib, 'Z_SYNC_FLUSH'):
c=zlib.compressobj(9)
d=zlib.decompressobj()
# Try 17K of data # Create compressor and decompressor objects
# generate random data stream c=zlib.compressobj(9)
a="" d=zlib.decompressobj()
for i in range(17*1024):
a=a+chr(random.randint(0,255))
# compress, sync-flush, and decompress # Try 17K of data
t = d.decompress( c.compress(a)+c.flush(zlib.Z_SYNC_FLUSH) ) # generate random data stream
a=""
for i in range(17*1024):
a=a+chr(random.randint(0,255))
# if decompressed data is different from the input data, choke. # compress, sync-flush, and decompress
if len(t) != len(a): t = d.decompress( c.compress(a)+c.flush(zlib.Z_SYNC_FLUSH) )
print len(a),len(t),len(d.unused_data)
raise TestFailed, "output of 17K doesn't match" # if decompressed data is different from the input data, choke.
if len(t) != len(a):
print len(a),len(t),len(d.unused_data)
raise TestFailed, "output of 17K doesn't match"
def ignore(): def ignore():
"""An empty function with a big string. """An empty function with a big string.