public async void @Group_Update_null()
        {
            Mock <ISalesTerritoryRepository> salesTerritoryRepository = new Mock <ISalesTerritoryRepository>();

            salesTerritoryRepository.Setup(x => x.Get(It.IsAny <int>())).Returns(Task.FromResult(new SalesTerritory()));

            var validator = new ApiSalesTerritoryRequestModelValidator(salesTerritoryRepository.Object);
            await validator.ValidateUpdateAsync(default(int), new ApiSalesTerritoryRequestModel());

            validator.ShouldHaveValidationErrorFor(x => x.@Group, null as string);
        }
        private async void BeUniqueByName_Update_Not_Exists()
        {
            Mock <ISalesTerritoryRepository> salesTerritoryRepository = new Mock <ISalesTerritoryRepository>();

            salesTerritoryRepository.Setup(x => x.ByName(It.IsAny <string>())).Returns(Task.FromResult <SalesTerritory>(null));
            var validator = new ApiSalesTerritoryRequestModelValidator(salesTerritoryRepository.Object);

            await validator.ValidateUpdateAsync(default(int), new ApiSalesTerritoryRequestModel());

            validator.ShouldNotHaveValidationErrorFor(x => x.Name, "A");
        }
        public async void CountryRegionCode_Update_length()
        {
            Mock <ISalesTerritoryRepository> salesTerritoryRepository = new Mock <ISalesTerritoryRepository>();

            salesTerritoryRepository.Setup(x => x.Get(It.IsAny <int>())).Returns(Task.FromResult(new SalesTerritory()));

            var validator = new ApiSalesTerritoryRequestModelValidator(salesTerritoryRepository.Object);
            await validator.ValidateUpdateAsync(default(int), new ApiSalesTerritoryRequestModel());

            validator.ShouldHaveValidationErrorFor(x => x.CountryRegionCode, new string('A', 4));
        }
        public async void Name_Create_length()
        {
            Mock <ISalesTerritoryRepository> salesTerritoryRepository = new Mock <ISalesTerritoryRepository>();

            salesTerritoryRepository.Setup(x => x.Get(It.IsAny <int>())).Returns(Task.FromResult(new SalesTerritory()));

            var validator = new ApiSalesTerritoryRequestModelValidator(salesTerritoryRepository.Object);
            await validator.ValidateCreateAsync(new ApiSalesTerritoryRequestModel());

            validator.ShouldHaveValidationErrorFor(x => x.Name, new string('A', 51));
        }