using System;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using PersonalFinance;
using PersonalFinance.Entity;

namespace PersonalFinanceTest
{
    [TestClass]
    public class ScheduledItemTest
    {
        [TestMethod]
        [ExpectedException(typeof(ArgumentNullException),
           "Payment cannot be null.")]
        public void ScheduledItem_NullPayment()
        {
            // arrange
            Payment payment = null;
            Frequency freq = Frequency.Daily;
            DateTime until = new DateTime();
            ScheduledItem item = new ScheduledItem() { Payment = payment, Frequency = freq, Until = until };   

            // assert
            //double actual = account.Balance;
            //Assert.AreEqual(expected, actual, 0.001, "Account not debited correctly");
        }

        [TestMethod]
        [ExpectedException(typeof(ArgumentNullException),
           "Until null DateTime cannot be combinate with Frequency.Once.")]
        public void ScheduledItem_NullDateOnceFrequency()
        {
            ScheduledItem item = new ScheduledItem() { 
                Payment = new Payment(new User()), 
                Frequency = Frequency.Once, 
                Until = null 
            };
        }

        [TestMethod]
        [ExpectedException(typeof(ArgumentOutOfRangeException),
           "Value is defined enum from Frequency!")]
        public void ScheduledItem_FrequencyIsNotEnum()
        {
            ScheduledItem item = new ScheduledItem()
            {
                Payment = new Payment(new User()),
                Frequency = (Frequency)10,
                Until = null
            };
            bool defined = Frequency.IsDefined(typeof(Frequency), item.Frequency);
            Assert.IsFalse(defined, "Value is defined enum from Frequency!");
        }
    }
}