Method test_classes

Lib/test/test_weakref.py:889–899

(self)

        gc.collect()

    def test_classes(self):
        # Check that classes are weakrefable.
        class A(object):
            pass
        l = []
        weakref.ref(int)
        a = weakref.ref(A, l.append)
        A = None
        gc.collect()
        self.assertEqual(a(), None)
        self.assertEqual(l, [a])

    def test_equality(self):
        # Alive weakrefs defer equality testing to their underlying object.