using System;
using System.Collections;
using System.Collections.Generic;
using NUnit.Framework;

namespace Assets.Data
{
    [TestFixture]
    public class TestChampionUtils
    {
        [Test]
        [TestCaseSource(typeof(ChampionCase), "championsEnum")]
        public void TestIntChampion(long champlong)
        {
            var champs = ChampionUtils.FromLong(champlong);
            long output = ChampionUtils.ToLong(champs);
            Assert.IsTrue(champlong == output);
        }

        [Test]
        [TestCaseSource(typeof(ChampionCase), "championsNth")]
        public void TestGetNthChampion(long champlons, int n, long expected)
        {
            long output = ChampionUtils.GetNthChampion(champlons, n);
            Assert.IsTrue(output == expected);
        }
    }

    public class ChampionCase
    {
        public static IEnumerable championsEnum
        {
            get
            {
                yield return 1223456L;
                yield return 3422L;
                yield return 97352L;
                yield return 67855324254L;
                yield return 432742125L;
                yield return 76578256785L;
                yield return 12345678912345678L;
            }
        }

        public static IEnumerable championsNth
        {
            get
            {
                yield return new TestCaseData(
                    ChampionUtils.ToLong(ChampionsEnum.ASHE),
                    0,
                    ChampionUtils.ToLong(ChampionsEnum.ASHE)
                );
                yield return new TestCaseData(
                    ChampionUtils.ToLong(ChampionsEnum.SMOLDER),
                    0,
                    ChampionUtils.ToLong(ChampionsEnum.SMOLDER)
                );
                yield return new TestCaseData(
                    ChampionUtils.ToLong(new HashSet<ChampionsEnum>() { ChampionsEnum.AHRI }),
                    0,
                    ChampionUtils.ToLong(ChampionsEnum.AHRI)
                );
                yield return new TestCaseData(
                    ChampionUtils.ToLong(new HashSet<ChampionsEnum>() { 
                        ChampionsEnum.AHRI,
                         ChampionsEnum.POPPY, 
                         ChampionsEnum.SORAKA,
                         ChampionsEnum.HWEI }),
                    1,
                    ChampionUtils.ToLong(ChampionsEnum.SORAKA)
                );
            }
        }
    }
}