public void MoveAndRemove()
{
#region ...
SPDisplayObjectContainer container = new SPStage();
SPDisplayObject obj1 = new SPQuad(32.0f, 32.0f);
SPDisplayObject obj2 = new SPQuad(32.0f, 32.0f);
SPDisplayObject obj3 = new SPQuad(32.0f, 32.0f);
SPDisplayObject obj4 = new SPQuad(32.0f, 32.0f);
container.Add(obj1);
container.Add(obj2);
container.Add(obj3);
container.Add(obj4);
Assert.True(container.Count == 4);
Assert.True(container.IndexOf(obj4) == 3);
container.Move(1, obj4);
Assert.True(container.Count == 4);
Assert.True(container.IndexOf(obj4) == 1);
Assert.True(container.IndexOf(obj2) == 2);
Assert.True(container.Remove(obj3));
Assert.False(container.Remove(obj3));
Assert.True(container.Count == 3);
Assert.False(container.Contains(obj3));
container.RemoveAt(1);
Assert.True(container.Count == 2);
Assert.False(container.Contains(obj4));
container.Clear();
Assert.True(container.Count == 0);
#endregion
}