public void TestInsertCustomer()
        {
            Customer customer = new Customer()
            {
                FirstName   = "Bobby",
                LastName    = "Olsen",
                Street      = "Cykelvænget",
                HouseNo     = 8,
                ZipCode     = "9000",
                Email       = "*****@*****.**",
                PhoneNumber = "88888888",
                Password    = "******"
            };

            Assert.IsTrue(cs.AddCustomer(customer));

            // Delete the customer from the database again
            DataCustomer db = new DataCustomer();

            db.DeleteCustomerTestingPurpose();
        }