public void UndirectedGraphAddEdgeAndDeleteEdge()
{
Graph graph = new MatrixGraph(10, false);
graph.AddEdge(0, 9, 10);
graph.AddEdge(2, 0, 5);
Assert.Equal(2, graph.GetOutDegree(0));
Assert.Equal(2, graph.GetInDegree(0));
Assert.Equal(2, graph.EdgesCount);
graph.DeleteEdge(0, 9);
Assert.Equal(1, graph.GetOutDegree(0));
Assert.Equal(1, graph.GetInDegree(0));
Assert.Equal(1, graph.EdgesCount);
}
