public void TestRouteFromGRUToCDG()
        {
            var from = listNodes.FirstOrDefault(x => x.Label == "GRU");
            var to   = listNodes.FirstOrDefault(x => x.Label == "CDG");

            var result = dijkstraImplementatio.FindBestRoute(from, to);

            Assert.AreEqual(40, result.Value);
            Assert.AreEqual("GRU - BRC - SCL - ORL - CDG", result.Route);
        }