mirror of https://github.com/python/cpython
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@ -7,11 +7,6 @@ from test.support import bigmemtest, _1G, _4G
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zlib = support.import_module('zlib')
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try:
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import mmap
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except ImportError:
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mmap = None
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class VersionTestCase(unittest.TestCase):
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@ -77,24 +72,11 @@ class ChecksumTestCase(unittest.TestCase):
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# Issue #10276 - check that inputs >=4GB are handled correctly.
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class ChecksumBigBufferTestCase(unittest.TestCase):
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def setUp(self):
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with open(support.TESTFN, "wb+") as f:
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f.seek(_4G)
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f.write(b"asdf")
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f.flush()
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self.mapping = mmap.mmap(f.fileno(), 0, access=mmap.ACCESS_READ)
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def tearDown(self):
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self.mapping.close()
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support.unlink(support.TESTFN)
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@unittest.skipUnless(mmap, "mmap() is not available.")
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@unittest.skipUnless(sys.maxsize > _4G, "Can't run on a 32-bit system.")
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@unittest.skipUnless(support.is_resource_enabled("largefile"),
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"May use lots of disk space.")
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def test_big_buffer(self):
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self.assertEqual(zlib.crc32(self.mapping), 3058686908)
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self.assertEqual(zlib.adler32(self.mapping), 82837919)
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@bigmemtest(size=_4G + 4, memuse=1, dry_run=False)
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def test_big_buffer(self, size):
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data = b"nyan" * (_1G + 1)
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self.assertEqual(zlib.crc32(data), 1044521549)
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self.assertEqual(zlib.adler32(data), 2256789997)
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class ExceptionTestCase(unittest.TestCase):
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@ -197,10 +179,8 @@ class CompressTestCase(BaseCompressTestCase, unittest.TestCase):
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def test_big_decompress_buffer(self, size):
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self.check_big_decompress_buffer(size, zlib.decompress)
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@bigmemtest(size=_4G + 100, memuse=1)
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@bigmemtest(size=_4G + 100, memuse=1, dry_run=False)
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def test_length_overflow(self, size):
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if size < _4G + 100:
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self.skipTest("not enough free memory, need at least 4 GB")
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data = b'x' * size
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try:
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self.assertRaises(OverflowError, zlib.compress, data, 1)
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@ -554,10 +534,8 @@ class CompressObjectTestCase(BaseCompressTestCase, unittest.TestCase):
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decompress = lambda s: d.decompress(s) + d.flush()
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self.check_big_decompress_buffer(size, decompress)
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@bigmemtest(size=_4G + 100, memuse=1)
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@bigmemtest(size=_4G + 100, memuse=1, dry_run=False)
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def test_length_overflow(self, size):
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if size < _4G + 100:
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self.skipTest("not enough free memory, need at least 4 GB")
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data = b'x' * size
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c = zlib.compressobj(1)
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d = zlib.decompressobj()
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