public void FindByKeyTest() { try { Graph g = new Graph(); Node n1 = new PointOfInterest(1, 0, 0, 1); Node n2 = new PointOfInterest(2, 0, 0, 1); Node n3 = new PointOfInterest(3, 0, 0, 1); g.InsertNewVertex(n1); g.InsertNewVertex(n2); g.InsertNewVertex(n3); Assert.Equals(n2, g.FindByKey(2)); } catch (SecurityException e) { Console.WriteLine("Security Exception:\n\n{0}", e.Message); } }