public void QueryMerchantsStockAsyncTest()
        {
            var key = TenPayHelper.GetRegisterKey(Config.SenparcWeixinSetting);

            var TenPayV3Info = TenPayV3InfoCollection.Data[key];

            // 如果还未发放代金券 则创建放代金券
            if (createStockResult is null)
            {
                CreateStockAsyncTest();
            }

            var marketingApis = new MarketingApis();
            var result        = marketingApis.QueryMerchantsStockAsync(0, 50, TenPayV3Info.MchId, createStockResult.stock_id).GetAwaiter().GetResult();

            Console.WriteLine("微信支付 V3 查询代金券可用商户接口结果:" + result.ToJson(true));

            Assert.IsNotNull(result);
            Assert.IsTrue(result.ResultCode.Success);
            Assert.IsTrue(result.VerifySignSuccess == true);//通过验证
        }