diff options
Diffstat (limited to 'Lib/test/test_zlib.py')
| -rw-r--r-- | Lib/test/test_zlib.py | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/Lib/test/test_zlib.py b/Lib/test/test_zlib.py index ef02c64..8b4bb87 100644 --- a/Lib/test/test_zlib.py +++ b/Lib/test/test_zlib.py @@ -6,7 +6,7 @@ import copy import pickle import random import sys -from test.support import bigmemtest, _1G, _4G, skip_on_s390x +from test.support import bigmemtest, _1G, _4G, is_s390x zlib = import_helper.import_module('zlib') @@ -33,8 +33,9 @@ def _zlib_runtime_version_tuple(zlib_version=zlib.ZLIB_RUNTIME_VERSION): 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. +# bpo-46623: When a hardware accelerator is used (currently only on s390x), +# using different ways to compress data with zlib can produce different +# compressed data. # Simplified test_pair() code: # # def func1(data): @@ -57,8 +58,10 @@ ZLIB_RUNTIME_VERSION_TUPLE = _zlib_runtime_version_tuple() # # zlib.decompress(func1(data)) == zlib.decompress(func2(data)) == data # -# Make the assumption that s390x always has an accelerator to simplify the skip -# condition. +# To simplify the skip condition, make the assumption that s390x always has an +# accelerator, and nothing else has it. +HW_ACCELERATED = is_s390x + class VersionTestCase(unittest.TestCase): @@ -223,12 +226,14 @@ class CompressTestCase(BaseCompressTestCase, unittest.TestCase): bufsize=zlib.DEF_BUF_SIZE), HAMLET_SCENE) - @skip_on_s390x def test_speech128(self): # compress more data data = HAMLET_SCENE * 128 x = zlib.compress(data) - self.assertEqual(zlib.compress(bytearray(data)), x) + # With hardware acceleration, the compressed bytes + # might not be identical. + if not HW_ACCELERATED: + self.assertEqual(zlib.compress(bytearray(data)), x) for ob in x, bytearray(x): self.assertEqual(zlib.decompress(ob), data) @@ -275,7 +280,6 @@ class CompressTestCase(BaseCompressTestCase, unittest.TestCase): class CompressObjectTestCase(BaseCompressTestCase, unittest.TestCase): # Test compression object - @skip_on_s390x def test_pair(self): # straightforward compress/decompress objects datasrc = HAMLET_SCENE * 128 @@ -286,7 +290,10 @@ class CompressObjectTestCase(BaseCompressTestCase, unittest.TestCase): x1 = co.compress(data) x2 = co.flush() self.assertRaises(zlib.error, co.flush) # second flush should not work - self.assertEqual(x1 + x2, datazip) + # With hardware acceleration, the compressed bytes might not + # be identical. + if not HW_ACCELERATED: + self.assertEqual(x1 + x2, datazip) for v1, v2 in ((x1, x2), (bytearray(x1), bytearray(x2))): dco = zlib.decompressobj() y1 = dco.decompress(v1 + v2) |