public void Insert()
{
#region ...
SPDisplayObject child1 = new SPQuad(32.0f, 32.0f);
SPDisplayObject child2 = new SPQuad(32.0f, 32.0f);
SPDisplayObject child3 = new SPQuad(32.0f, 32.0f);
SPDisplayObjectContainer container = new SPStage();
container.Add(child1);
container.Add(child3);
container.Insert(1, child2);
Assert.True(container.Count == 3);
Assert.True(container.IndexOf(child1) == 0);
Assert.True(container.IndexOf(child2) == 1);
Assert.True(container.IndexOf(child3) == 2);
#endregion
}