Backport of _abccoll.py by Benjamin Arangueren, issue 1383.
With some changes of my own thrown in (e.g. backport of r58107).
diff --git a/Lib/test/test_abc.py b/Lib/test/test_abc.py
index 3fd9bde..c760356 100644
--- a/Lib/test/test_abc.py
+++ b/Lib/test/test_abc.py
@@ -133,6 +133,20 @@
self.failUnless(issubclass(MyInt, A))
self.failUnless(isinstance(42, A))
+ def test_all_new_methods_are_called(self):
+ class A:
+ __metaclass__ = abc.ABCMeta
+ class B:
+ counter = 0
+ def __new__(cls):
+ B.counter += 1
+ return super(B, cls).__new__(cls)
+ class C(A, B):
+ pass
+ self.assertEqual(B.counter, 0)
+ C()
+ self.assertEqual(B.counter, 1)
+
def test_main():
test_support.run_unittest(TestABC)