diff options
Diffstat (limited to 'Lib/test/test_capi/test_misc.py')
| -rw-r--r-- | Lib/test/test_capi/test_misc.py | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Lib/test/test_capi/test_misc.py b/Lib/test/test_capi/test_misc.py index 9d5d1ca..1d426d0 100644 --- a/Lib/test/test_capi/test_misc.py +++ b/Lib/test/test_capi/test_misc.py @@ -681,6 +681,20 @@ class CAPITest(unittest.TestCase): with self.assertRaisesRegex(TypeError, msg): t = _testcapi.pytype_fromspec_meta(_testcapi.HeapCTypeMetaclassCustomNew) + def test_heaptype_with_custom_metaclass_deprecation(self): + # gh-103968: a metaclass with custom tp_new is deprecated, but still + # allowed for functions that existed in 3.11 + # (PyType_FromSpecWithBases is used here). + class Base(metaclass=_testcapi.HeapCTypeMetaclassCustomNew): + pass + + with warnings_helper.check_warnings( + ('.*custom tp_new.*in Python 3.14.*', DeprecationWarning), + ): + sub = _testcapi.make_type_with_base(Base) + self.assertTrue(issubclass(sub, Base)) + self.assertIsInstance(sub, _testcapi.HeapCTypeMetaclassCustomNew) + def test_multiple_inheritance_ctypes_with_weakref_or_dict(self): with self.assertRaises(TypeError): |