public void Test_RemoveTrack()
{
var clip = new AnimationClip (100, "ClipName");
var track1 = new AnimationTrack ("PropName", InterpolationType.Linear);
var track2 = new AnimationTrack ("PropName", InterpolationType.Linear);
var target = new Node ();
clip.AddTrack (target, track1);
clip.AddTrack (target, track2);
Assert.AreEqual (2, clip.TrackCount);
Assert.AreEqual (2, clip.Tracks.Count());
clip.RemoveTrack (track1);
clip.RemoveTrack (track2);
Assert.AreEqual (0, clip.TrackCount);
Assert.AreEqual (0, clip.Tracks.Count ());
}