public void Remove_CurrentOnlyAndLastItem()
{
var queue = new MediaQueue();
var tracks = new[]
{
new MediaFile(),
};
queue.AddRange(tracks);
queue.SetIndexAsCurrent(0);
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);
queue.Remove(tracks[0]);
Assert.AreEqual(0, queue.Count);
Assert.AreEqual(null, queue.Current);
Assert.AreEqual(-1, queue.Index);
Assert.AreEqual(RepeatType.None, queue.Repeat);
Assert.AreEqual(RepeatType.None, 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 == null && e.OldItems?.Count == 1).Count());
Assert.AreEqual(1, collectionChangedEvents.Count);
}
public void Remove_CurrentAndLastItem()
{
var queue = new MediaQueue();
var tracks = new[]
{
new MediaFile(),
new MediaFile(),
new MediaFile(),
};
queue.AddRange(tracks);
queue.SetIndexAsCurrent(2);
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);
queue.Remove(tracks[2]);
Assert.AreEqual(2, queue.Count);
Assert.AreEqual(tracks[1], queue.Current);
Assert.AreEqual(1, queue.Index);
Assert.AreEqual(RepeatType.None, queue.Repeat);
Assert.AreEqual(false, queue.IsShuffled);
Assert.AreEqual(1, propertyChangedEvents.Count(e => e.PropertyName == nameof(queue.Current)));
Assert.AreEqual(1, propertyChangedEvents.Count(e => e.PropertyName == nameof(queue.Index)));
Assert.AreEqual(1, propertyChangedEvents.Count(e => e.PropertyName == nameof(queue.Count)));
Assert.AreEqual(3, propertyChangedEvents.Count);
Assert.AreEqual(1, collectionChangedEvents.Count(e => e.NewItems == null && e.OldItems?.Count == 1));
Assert.AreEqual(1, collectionChangedEvents.Count);
}