diff options
Diffstat (limited to 'Lib/test')
| -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 f99190031c..6bc386ed85 100644 --- a/Lib/test/test_zlib.py +++ b/Lib/test/test_zlib.py @@ -186,6 +186,17 @@ class CompressTestCase(BaseCompressTestCase, unittest.TestCase): def test_big_decompress_buffer(self, size): self.check_big_decompress_buffer(size, zlib.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 + class CompressObjectTestCase(BaseCompressTestCase, unittest.TestCase): # Test compression object |