void () { Node r1 = new Node(0,0, new Node(1,0, new Node(2,0), new Node(3,1))); Node r2 = new Node(0,0, new Node(1,0, new Node(2,0), new Node(3,1), new Node(4,2), new Node(5,3))); performTest(r1, r2, "INSERTED to 1: 4 at 2", "INSERTED to 1: 5 at 3"); }