using System;
using UnitTestSharp;

namespace Susurrus.UnitTests
{
    public class SoundIdTests : TestFixture
    {
        public class CtorTests : TestFixture
        {
            public void KeepsTheIndex()
            {
                CheckEqual(7, new SoundId(7).Index);
            }

            public void ANegativeIndex_Throws()
            {
                CheckThrow(typeof(ArgumentOutOfRangeException));
                new SoundId(-1);
            }
        }

        public class EqualityTests : TestFixture
        {
            public void IdsOfTheSameIndex_AreEqual()
            {
                CheckTrue(new SoundId(3) == new SoundId(3));
                CheckTrue(new SoundId(3).Equals((object)new SoundId(3)));
                CheckEqual(new SoundId(3).GetHashCode(), new SoundId(3).GetHashCode());
            }

            public void IdsOfDifferentIndexes_AreNotEqual()
            {
                CheckTrue(new SoundId(3) != new SoundId(4));
                CheckFalse(new SoundId(3).Equals(new SoundId(4)));
            }

            public void ANonId_IsNotEqual()
            {
                CheckFalse(new SoundId(3).Equals("3"));
            }
        }

        public class ToStringTests : TestFixture
        {
            public void NamesTheIndex()
            {
                CheckEqual("SoundId(5)", new SoundId(5).ToString());
            }
        }
    }
}