def delete_cookie(self, server_name, key, path='/', domain=None):
        self.set_cookie(server_name, key, expires=0, max_age=0,
                        path=path, domain=domain)
Deletes a cookie in the test client.
dataset/ETHPy150Open Eforcers/gae-flask-todo/lib/werkzeug/test.py/Client.delete_cookie