def METHOD_NAME(self):
    # Create and set a user that has no access to the wishlist
    non_shared_user = User.objects.create(
        email="anotheruser@example.com",
        password="testpassword",
        username="anotheruser",
    )
    self.client.force_login(non_shared_user)
    response = self.client.get(self.wishlist_shared_url)
    self.assertEqual(response.status_code, 403)