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[3.12] gh-112769: test_zlib: Fix comparison of ZLIB_RUNTIME_VERSION with non-int suffix (GH-112771) (GH-112773)

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zlib-ng defines the version as "1.3.0.zlib-ng".
(cherry picked from commit d384813ff1)

Co-authored-by: Miro Hrončok <miro@hroncok.cz>
This commit is contained in:
Miss Islington (bot) 2023-12-05 21:03:00 +01:00 • committed by GitHub
parent ef92e9e666
commit 5720f7fcdf
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2 changed files with 20 additions and 12 deletions
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29
Lib/test/test_zlib.py
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@ -19,6 +19,21 @@ requires_Decompress_copy = unittest.skipUnless(
hasattr(zlib.decompressobj(), "copy"),
'requires Decompress.copy()')
def _zlib_runtime_version_tuple(zlib_version=zlib.ZLIB_RUNTIME_VERSION):
# Register "1.2.3" as "1.2.3.0"
# or "1.2.0-linux","1.2.0.f","1.2.0.f-linux"
v = zlib_version.split('-', 1)[0].split('.')
if len(v) < 4:
v.append('0')
elif not v[-1].isnumeric():
v[-1] = '0'
return tuple(map(int, v))
ZLIB_RUNTIME_VERSION_TUPLE = _zlib_runtime_version_tuple()
# bpo-46623: On s390x, when a hardware accelerator is used, using different
# ways to compress data with zlib can produce different compressed data.
# Simplified test_pair() code:
@ -474,9 +489,8 @@ class CompressObjectTestCase(BaseCompressTestCase, unittest.TestCase):
sync_opt = ['Z_NO_FLUSH', 'Z_SYNC_FLUSH', 'Z_FULL_FLUSH',
'Z_PARTIAL_FLUSH']
ver = tuple(int(v) for v in zlib.ZLIB_RUNTIME_VERSION.split('.'))
# Z_BLOCK has a known failure prior to 1.2.5.3
if ver >= (1, 2, 5, 3):
if ZLIB_RUNTIME_VERSION_TUPLE >= (1, 2, 5, 3):
sync_opt.append('Z_BLOCK')
sync_opt = [getattr(zlib, opt) for opt in sync_opt
@ -794,16 +808,7 @@ class CompressObjectTestCase(BaseCompressTestCase, unittest.TestCase):
def test_wbits(self):
# wbits=0 only supported since zlib v1.2.3.5
# Register "1.2.3" as "1.2.3.0"
# or "1.2.0-linux","1.2.0.f","1.2.0.f-linux"
v = zlib.ZLIB_RUNTIME_VERSION.split('-', 1)[0].split('.')
if len(v) < 4:
v.append('0')
elif not v[-1].isnumeric():
v[-1] = '0'
v = tuple(map(int, v))
supports_wbits_0 = v >= (1, 2, 3, 5)
supports_wbits_0 = ZLIB_RUNTIME_VERSION_TUPLE >= (1, 2, 3, 5)
co = zlib.compressobj(level=1, wbits=15)
zlib15 = co.compress(HAMLET_SCENE) + co.flush()