add a test and a note about metaclasses now being abcs
diff --git a/Lib/test/test_abc.py b/Lib/test/test_abc.py
index 3a1d76b..1b51644 100644
--- a/Lib/test/test_abc.py
+++ b/Lib/test/test_abc.py
@@ -105,6 +105,19 @@
pass
self.assertRaises(AttributeError, getattr, meta, "__abstractmethods__")
+ def test_metaclass_abc(self):
+ # Metaclasses can be ABCs, too.
+ class A(metaclass=abc.ABCMeta):
+ @abc.abstractmethod
+ def x(self):
+ pass
+ self.assertEqual(A.__abstractmethods__, {"x"})
+ class meta(type, A):
+ def x(self):
+ return 1
+ class C(metaclass=meta):
+ pass
+
def test_registration_basics(self):
class A(metaclass=abc.ABCMeta):
pass