test_subscription_manager.py 文件源码

def test_use_filter_func_that_returns_a_promise(sub_mgr):
    query = 'subscription Filter2($filterBoolean: Boolean) {\
    testFilter(filterBoolean: $filterBoolean)}'

    def callback(err, payload):
        if err:
            sys.exit(err)
        else:
            try:
                if payload is None:
                    assert True
                else:
                    assert payload.data.get('testFilter') == 'good_filter'
                    sub_mgr.pubsub.greenlet.kill()
            except AssertionError as e:
                sys.exit(e)

    def publish_and_unsubscribe_handler(sub_id):
        sub_mgr.publish('filter_2', {'filterBoolean': False})
        sub_mgr.publish('filter_2', {'filterBoolean': True})
        try:
            sub_mgr.pubsub.greenlet.join()
        except:
            raise
        sub_mgr.unsubscribe(sub_id)

    p1 = sub_mgr.subscribe(query, 'Filter2', callback, {'filterBoolean': True},
                           {}, None, None)
    p2 = p1.then(publish_and_unsubscribe_handler)
    p2.get()