using System;
using System.Runtime.InteropServices;
using UnitTestSharp;

namespace Susurrus.XAudio2.UnitTests
{
    public class XAudio2VoiceStateTests : TestFixture
    {
        public class LayoutTests : TestFixture
        {
            public void IsPackedToOneByte()
            {
                CheckEqual(IntPtr.Size == 8 ? 20 : 16, Marshal.SizeOf(typeof(XAudio2VoiceState)));
            }

            public void SamplesPlayedFollowsTheQueuedCountWithNoPadding()
            {
                CheckEqual(IntPtr.Size + 4, (int)Marshal.OffsetOf(typeof(XAudio2VoiceState), "SamplesPlayed"));
            }
        }
    }
}