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using System;
using System.Collections.Generic;
using System.Linq;
using MediaBrowser.Controller.SyncPlay.Queue;
using MediaBrowser.Model.SyncPlay;
using Xunit;
namespace Jellyfin.Server.Implementations.Tests.SyncPlay;
public class PlayQueueManagerTests
{
private static PlayQueueManager CreateQueue(int itemCount)
{
var items = Enumerable.Range(0, itemCount).Select(_ => Guid.NewGuid()).ToList();
var queue = new PlayQueueManager();
queue.SetPlaylist(items);
return queue;
}
[Fact]
public void RemoveFromPlaylist_PlayingItemAndPrecedingItemRemoved_PicksPreviousItem()
{
var queue = CreateQueue(5);
queue.SetPlayingItemByIndex(3);
var playlist = queue.GetPlaylist();
var expectedItemId = playlist[2].ItemId;
var toRemove = new List<Guid> { playlist[0].PlaylistItemId, playlist[3].PlaylistItemId };
var playingItemRemoved = queue.RemoveFromPlaylist(toRemove);
Assert.True(playingItemRemoved);
Assert.Equal(3, queue.GetPlaylist().Count);
Assert.Equal(1, queue.PlayingItemIndex);
Assert.Equal(expectedItemId, queue.GetPlayingItemId());
}
[Fact]
public void RemoveFromPlaylist_PlayingItemAndAllPrecedingItemsRemoved_PicksFirstRemainingItem()
{
var queue = CreateQueue(3);
queue.SetPlayingItemByIndex(2);
var playlist = queue.GetPlaylist();
var expectedItemId = playlist[1].ItemId;
var toRemove = new List<Guid> { playlist[0].PlaylistItemId, playlist[2].PlaylistItemId };
var playingItemRemoved = queue.RemoveFromPlaylist(toRemove);
Assert.True(playingItemRemoved);
Assert.Single(queue.GetPlaylist());
Assert.Equal(0, queue.PlayingItemIndex);
Assert.Equal(expectedItemId, queue.GetPlayingItemId());
}
[Fact]
public void RemoveFromPlaylist_AllItemsRemoved_ResetsPlayingItem()
{
var queue = CreateQueue(2);
queue.SetPlayingItemByIndex(1);
var toRemove = queue.GetPlaylist().Select(item => item.PlaylistItemId).ToList();
var playingItemRemoved = queue.RemoveFromPlaylist(toRemove);
Assert.True(playingItemRemoved);
Assert.Empty(queue.GetPlaylist());
Assert.False(queue.IsItemPlaying());
Assert.Equal(Guid.Empty, queue.GetPlayingItemPlaylistId());
}
[Fact]
public void RemoveFromPlaylist_ShuffleMode_PicksPreviousItem()
{
var queue = CreateQueue(5);
queue.SetShuffleMode(GroupShuffleMode.Shuffle);
queue.SetPlayingItemByIndex(3);
var playlist = queue.GetPlaylist();
var expectedItemId = playlist[2].ItemId;
var toRemove = new List<Guid> { playlist[0].PlaylistItemId, playlist[3].PlaylistItemId };
var playingItemRemoved = queue.RemoveFromPlaylist(toRemove);
Assert.True(playingItemRemoved);
Assert.Equal(3, queue.GetPlaylist().Count);
Assert.Equal(1, queue.PlayingItemIndex);
Assert.Equal(expectedItemId, queue.GetPlayingItemId());
}
[Fact]
public void RemoveFromPlaylist_PlayingItemNotRemoved_RestoresPlayingItem()
{
var queue = CreateQueue(3);
queue.SetPlayingItemByIndex(2);
var playlist = queue.GetPlaylist();
var expectedItemId = playlist[2].ItemId;
var toRemove = new List<Guid> { playlist[0].PlaylistItemId };
var playingItemRemoved = queue.RemoveFromPlaylist(toRemove);
Assert.False(playingItemRemoved);
Assert.Equal(1, queue.PlayingItemIndex);
Assert.Equal(expectedItemId, queue.GetPlayingItemId());
}
[Theory]
[InlineData(GroupRepeatMode.RepeatNone)]
[InlineData(GroupRepeatMode.RepeatOne)]
[InlineData(GroupRepeatMode.RepeatAll)]
public void Next_EmptyPlaylist_ReturnsFalse(GroupRepeatMode repeatMode)
{
var queue = new PlayQueueManager();
queue.SetRepeatMode(repeatMode);
Assert.False(queue.Next());
Assert.False(queue.IsItemPlaying());
Assert.Equal(Guid.Empty, queue.GetPlayingItemPlaylistId());
}
[Theory]
[InlineData(GroupRepeatMode.RepeatNone)]
[InlineData(GroupRepeatMode.RepeatOne)]
[InlineData(GroupRepeatMode.RepeatAll)]
public void Previous_EmptyPlaylist_ReturnsFalse(GroupRepeatMode repeatMode)
{
var queue = new PlayQueueManager();
queue.SetRepeatMode(repeatMode);
Assert.False(queue.Previous());
Assert.False(queue.IsItemPlaying());
Assert.Equal(Guid.Empty, queue.GetPlayingItemPlaylistId());
}
[Theory]
[InlineData(-1)]
[InlineData(2)]
[InlineData(3)]
public void SetPlayingItemByIndex_OutOfBounds_ResetsPlayingItem(int playlistIndex)
{
var queue = CreateQueue(2);
queue.SetPlayingItemByIndex(playlistIndex);
Assert.False(queue.IsItemPlaying());
Assert.Equal(Guid.Empty, queue.GetPlayingItemPlaylistId());
}
[Fact]
public void SetPlayingItemByIndex_InBounds_SetsPlayingItem()
{
var queue = CreateQueue(2);
var expectedItemId = queue.GetPlaylist()[1].ItemId;
queue.SetPlayingItemByIndex(1);
Assert.True(queue.IsItemPlaying());
Assert.Equal(expectedItemId, queue.GetPlayingItemId());
}
}
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