public void TestFor_ValidDisplayOfServicesAndGoods() { //Arrange Merchants merchants = new Merchants() { MerchantsId = 1, MerchantsName = "Mar", Email = "*****@*****.**", Password = "******", Mobile = 9876554345 }; //Actions var allServices = _merchantService.DisplayServices(merchants.MerchantsId); var allGoods = _merchantService.DisplayAllGoods(merchants.MerchantsId); //Assert Assert.NotNull(allServices); Assert.NotNull(allGoods); Assert.NotEmpty(allServices); Assert.NotEmpty(allGoods); }