public void When_AddNewCustomerDisposable()
        {
            //Arrange
            var request = new CustomerRequest
            {
                PersonId    = 1345,
                TerritoryId = 4
            };

            //Act
            var responseCustomerAdder = Controller.Add(request);

            //Assert
            responseCustomerAdder.StatusCode.Should().Be(HttpStatusCode.OK, "httpStatusCode is not Ok");

            var customerId = HttpResponseHelper.GetReponse <int>(responseCustomerAdder.Content);

            customerId.Should().BeGreaterThan(0, $"customerId {customerId}: should be greater than 0");
        }