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using System;
using Emby.Server.Implementations.Sorting;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Sorting;
using Xunit;
namespace Jellyfin.Server.Implementations.Tests.Sorting;
public class IndexNumberComparerTests
{
private readonly IBaseItemComparer _cmp = new IndexNumberComparer();
public static TheoryData<BaseItem?, BaseItem?> Compare_GivenNull_ThrowsArgumentNullException_TestData()
=> new()
{
{ null, new Audio() },
{ new Audio(), null }
};
[Theory]
[MemberData(nameof(Compare_GivenNull_ThrowsArgumentNullException_TestData))]
public void Compare_GivenNull_ThrowsArgumentNullException(BaseItem? x, BaseItem? y)
{
Assert.Throws<ArgumentNullException>(() => _cmp.Compare(x, y));
}
[Theory]
[InlineData(null, null, 0)]
[InlineData(0, null, 1)]
[InlineData(null, 0, -1)]
[InlineData(1, 1, 0)]
[InlineData(0, 1, -1)]
[InlineData(1, 0, 1)]
public void Compare_ValidIndices_SortsExpected(int? index1, int? index2, int expected)
{
BaseItem x = new Audio
{
IndexNumber = index1
};
BaseItem y = new Audio
{
IndexNumber = index2
};
Assert.Equal(expected, _cmp.Compare(x, y));
Assert.Equal(-expected, _cmp.Compare(y, x));
}
}
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