diff options
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/test/test_zlib.py | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Lib/test/test_zlib.py b/Lib/test/test_zlib.py index 60081e2..c17b4d0 100644 --- a/Lib/test/test_zlib.py +++ b/Lib/test/test_zlib.py @@ -434,6 +434,19 @@ class CompressObjectTestCase(BaseCompressTestCase, unittest.TestCase): y += dco.flush() self.assertEqual(y, b'foo') + def test_decompress_unused_data(self): + # Repeated calls to decompress() after EOF should accumulate data in + # dco.unused_data, instead of just storing the arg to the last call. + x = zlib.compress(HAMLET_SCENE) + HAMLET_SCENE + for step in 1, 2, 100: + dco = zlib.decompressobj() + data = b''.join(dco.decompress(x[i : i + step]) + for i in range(0, len(x), step)) + data += dco.flush() + + self.assertEqual(data, HAMLET_SCENE) + self.assertEqual(dco.unused_data, HAMLET_SCENE) + if hasattr(zlib.compressobj(), "copy"): def test_compresscopy(self): # Test copying a compression object |