public void Basic()
{
var queue = new MediaQueue();
IList<NotifyCollectionChangedEventArgs> collectionChangedEvents = new List<NotifyCollectionChangedEventArgs>();
IList<PropertyChangedEventArgs> propertyChangedEvents = new List<PropertyChangedEventArgs>();
queue.CollectionChanged += (sender, e) => collectionChangedEvents.Add(e);
queue.PropertyChanged += (sender, e) => propertyChangedEvents.Add(e);
var tracks = new[]
{
new MediaFile(),
new MediaFile(),
};
queue.Add(tracks[0]);
Assert.AreEqual(1, queue.Count);
Assert.AreEqual(tracks[0], queue.Current);
Assert.AreEqual(0, queue.Index);
Assert.AreEqual(RepeatType.None, queue.Repeat);
Assert.AreEqual(false, queue.Shuffle);
Assert.AreEqual(1, propertyChangedEvents.Where(e => e.PropertyName == "Current").Count());
Assert.AreEqual(1, propertyChangedEvents.Where(e => e.PropertyName == "Index").Count());
Assert.AreEqual(1, propertyChangedEvents.Where(e => e.PropertyName == "Count").Count());
Assert.AreEqual(3, propertyChangedEvents.Count);
Assert.AreEqual(1, collectionChangedEvents.Where(e => e.NewItems.Count == 1 && e.OldItems == null).Count());
Assert.AreEqual(1, collectionChangedEvents.Count);
queue.Add(tracks[1]);
Assert.AreEqual(2, queue.Count);
Assert.AreEqual(tracks[0], queue.Current);
Assert.AreEqual(0, queue.Index);
Assert.AreEqual(RepeatType.None, queue.Repeat);
Assert.AreEqual(false, queue.Shuffle);
Assert.AreEqual(1, propertyChangedEvents.Where(e => e.PropertyName == "Current").Count());
Assert.AreEqual(1, propertyChangedEvents.Where(e => e.PropertyName == "Index").Count());
Assert.AreEqual(2, propertyChangedEvents.Where(e => e.PropertyName == "Count").Count());
Assert.AreEqual(4, propertyChangedEvents.Count);
Assert.AreEqual(2, collectionChangedEvents.Where(e => e.NewItems.Count == 1 && e.OldItems == null).Count());
Assert.AreEqual(2, collectionChangedEvents.Count);
}
public async Task Play(IMediaFile mediaFile = null)
{
if (mediaFile == null)
{
if (Status == MediaPlayerStatus.Paused)
{
await Resume();
return;
}
mediaFile = CurrentMediaFile;
}
if (_currentPlaybackManager != null && Status == MediaPlayerStatus.Failed)
{
await PlayNext();
return;
}
if (mediaFile == null)
{
await Play(MediaQueue);
return;
}
if (!MediaQueue.Contains(mediaFile))
{
MediaQueue.Add(mediaFile);
}
MediaQueue.SetTrackAsCurrent(mediaFile);
await RaiseMediaFileFailedEventOnException(async() =>
{
await PlayCurrent();
});
MediaNotificationManager?.StartNotification(mediaFile);
}
/// <summary>
/// Adds MediaFile to the Queue and starts playing
/// </summary>
/// <param name="mediaFile"></param>
/// <returns></returns>
public async Task Play(IMediaFile mediaFile)
{
if (_currentPlaybackManager != null && Status == MediaPlayerStatus.Failed)
{
await PlayNext();
return;
}
if (mediaFile == null)
{
await Play(MediaQueue);
return;
}
if (!MediaQueue.Contains(mediaFile))
{
MediaQueue.Add(mediaFile);
}
MediaQueue.SetTrackAsCurrent(mediaFile);
try
{
var beforePlayTask = _onBeforePlay?.Invoke(_currentMediaFile);
if (beforePlayTask != null)
{
await beforePlayTask;
}
await CurrentPlaybackManager.Play(mediaFile);
await GetMediaInformation(new[] { mediaFile });
MediaNotificationManager?.StartNotification(mediaFile);
}
catch (Exception ex)
{
OnMediaFileFailed(this, new MediaFileFailedEventArgs(ex, mediaFile));
}
}
public void WhenAddingItemsWhileShuffled_OrderIsSameAsBeforeButWithExtraItem()
{
var arr = new[]
{
new MediaFile(),
new MediaFile(),
new MediaFile(),
new MediaFile(),
new MediaFile(),
new MediaFile(),
new MediaFile(),
new MediaFile(),
new MediaFile(),
new MediaFile(),
new MediaFile()
};
Console.WriteLine("Original: {0}", string.Join(",", arr.Select(x => x.Id)));
var queue = new MediaQueue();
Console.WriteLine("Current Index: {0}", queue.Index);
queue.AddRange(arr);
queue.ToggleShuffle();
queue.Add(new MediaFile());
Console.WriteLine("Shuffled: {0}", string.Join(",", queue.Cast<MediaFile>().Select(x => x.Id)));
queue.ToggleShuffle();
Console.WriteLine("Unshuffled: {0}", string.Join(",", queue.Cast<MediaFile>().Select(x => x.Id)));
CollectionAssert.AllItemsAreUnique(queue.Cast<MediaFile>().Select(x => x.Id));
Assert.AreEqual(arr[0].Id, queue.Cast<MediaFile>().ElementAt(0).Id);
Assert.AreEqual(arr[1].Id, queue.Cast<MediaFile>().ElementAt(1).Id);
Assert.AreEqual(arr[2].Id, queue.Cast<MediaFile>().ElementAt(2).Id);
Assert.AreEqual(arr[3].Id, queue.Cast<MediaFile>().ElementAt(3).Id);
Assert.AreEqual(arr[4].Id, queue.Cast<MediaFile>().ElementAt(4).Id);
Assert.AreEqual(arr[5].Id, queue.Cast<MediaFile>().ElementAt(5).Id);
Assert.AreEqual(arr[6].Id, queue.Cast<MediaFile>().ElementAt(6).Id);
Assert.AreEqual(arr[7].Id, queue.Cast<MediaFile>().ElementAt(7).Id);
Assert.AreEqual(arr[8].Id, queue.Cast<MediaFile>().ElementAt(8).Id);
Assert.AreEqual(arr[9].Id, queue.Cast<MediaFile>().ElementAt(9).Id);
Assert.AreEqual(arr[10].Id, queue.Cast<MediaFile>().ElementAt(10).Id);
Assert.AreEqual(arr.Length + 1, queue.Count, "The array length is different");
}