public void GetLastSib() { var r = new MapNode(new MapTree(), "r"); var c1 = new MapNode(r, "c1"); var cc1 = new MapNode(c1, "cc1"); var cc2 = new MapNode(c1, "cc2"); var cc3 = new MapNode(c1, "cc3"); var c2 = new MapNode(r, "c2"); var c3 = new MapNode(r, "c3", NodePosition.Left); Assert.AreEqual(c1.GetLastSib(), c3); }