def test_order(self):
        assert (event.Priority.PRE_CORE
                > event.Priority.CORE
                > event.Priority.POST_CORE
                > event.Priority.PRE_DEFAULT
                > event.Priority.DEFAULT
                > event.Priority.POST_DEFAULT)
def after_request(response):
    response.headers.add('X-Test', 'This is only test.')
    response.headers.add('Access-Control-Allow-Origin', '*')  # TODO: set to real origin
    return response