public void SuppliersController_Delete_GET_isValid()
        {
            SuppliersController controller = new SuppliersController();

            ViewResult result = controller.Delete(1) as ViewResult;
            Supplier SuppliersResult = (Supplier)result.Model;

            Assert.AreEqual(1, SuppliersResult.supplierID);
        }
        public void SuppliersController_Delete_GET_isNotValid()
        {
            SuppliersController controller = new SuppliersController();

            HttpNotFoundResult result = controller.Delete(9999999) as HttpNotFoundResult;
            var expectedResult = new HttpNotFoundResult().GetType();

            Assert.IsInstanceOfType(result, expectedResult);
        }