While working on #17516, I saw that test_create_autospec_unbound_methods() of Lib/unittest/test/testmock/testhelpers.py is skipped:

    def test_create_autospec_unbound_methods(self):
        # see mock issue 128
        # this is expected to fail until the issue is fixed
        return

Related entry in mock bug tracker:
http://code.google.com/p/mock/issues/detail?id=128

If it is not necessary to duplicate the issue here, please just close it.

Oh, there is another skipped test in Lib/unittest/test/testmock/testpatch.py:

    def test_patch_descriptor(self):
        # would be some effort to fix this - we could special case the
        # builtin descriptors: classmethod, property, staticmethod
        return

Both of these tests are still commented out in the default branch.