def METHOD_NAME(self, user_key):
    from openlibrary.mocks.mock_infobase import MockSite
    site = MockSite()
    list_key = user_key + "/lists/OL1L"
    self.save_doc(site, "/type/user", user_key)
    self.save_doc(site, "/type/list", list_key)
    list = site.get(list_key)
    assert list is not None
    assert isinstance(list, models.List)
    assert list.get_owner() is not None
    assert list.get_owner().key == user_key