diff options
Diffstat (limited to 'Lib/test/test_io.py')
| -rw-r--r-- | Lib/test/test_io.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Lib/test/test_io.py b/Lib/test/test_io.py index 8152e6174d..5ec0b7bb11 100644 --- a/Lib/test/test_io.py +++ b/Lib/test/test_io.py @@ -2807,6 +2807,11 @@ class CTextIOWrapperTest(TextIOWrapperTest): t2.buddy = t1 support.gc_collect() + def test_del__CHUNK_SIZE_SystemError(self): + t = self.TextIOWrapper(self.BytesIO(), encoding='ascii') + with self.assertRaises(AttributeError): + del t._CHUNK_SIZE + maybeRaises = unittest.TestCase.assertRaises |