public void GetFirstSib()
{
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(c3.GetFirstSib(), c1);
}
