CardShopTest.ControllerTests.RedemptionControllerTests.RedeemDiscountFailTest C# (CSharp) Метод

        public void RedeemDiscountFailTest()
        {
            discountService.Setup(m => m.GetCoupon(USER4, COUPONCODE4, out isSuccess, out error)).Returns((UserDiscount)null);

            Assert.IsInstanceOfType(redemptionController.RedeemDiscount(USER4, COUPONCODE4), typeof(JsonResult));
        }