diff options
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/test/test_zlib.py | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Lib/test/test_zlib.py b/Lib/test/test_zlib.py index 48d9f58..930aac6 100644 --- a/Lib/test/test_zlib.py +++ b/Lib/test/test_zlib.py @@ -523,6 +523,17 @@ class CompressObjectTestCase(BaseCompressTestCase, unittest.TestCase): decompress = lambda s: d.decompress(s) + d.flush() self.check_big_decompress_buffer(size, decompress) + @precisionbigmemtest(size=_4G + 100, memuse=1) + def test_length_overflow(self, size): + if size < _4G + 100: + self.skipTest("not enough free memory, need at least 4 GB") + data = b'x' * size + try: + self.assertRaises(OverflowError, zlib.compress, data, 1) + self.assertRaises(OverflowError, zlib.decompress, data) + finally: + data = None + def genblock(seed, length, step=1024, generator=random): """length-byte stream of random data from a seed (in step-byte blocks).""" |