public void GetAdjacencyListTest()
{
WeightedDiGraph <int> directedGraph = GetTestGraph();
ICollection <WeightedEdge <int> > adjacencyList = directedGraph.GetAdjacencyList(0);
Assert.AreEqual(3, adjacencyList.Count, "Adjacency list count");
Assert.IsTrue(adjacencyList.Contains(new WeightedEdge <int>(0, 1, 10)));
Assert.IsTrue(adjacencyList.Contains(new WeightedEdge <int>(0, 2, 5)));
Assert.IsTrue(adjacencyList.Contains(new WeightedEdge <int>(0, 3, 3)));
}