public void GetEdge()
{
WeightedDiGraph <int> directedGraph = GetTestGraph();
Assert.AreEqual(new WeightedEdge <int>(1, 2, 7), directedGraph.GetEdge(1, 2));
Assert.AreEqual(WeightedEdge <int> .None, directedGraph.GetEdge(3, 0));
}
public void DiGraphReverseCorrectly()
{
WeightedDiGraph <int> graph = new WeightedDiGraph <int>
{
new WeightedEdge <int>(1, 2, 1),
new WeightedEdge <int>(2, 3, 2),
new WeightedEdge <int>(3, 1, 3)
};
WeightedDiGraph <int> reversed = graph.Reverse();
Assert.AreNotEqual(WeightedEdge <int> .None, reversed.GetEdge(2, 1));
Assert.AreEqual(WeightedEdge <int> .None, reversed.GetEdge(1, 2));
Assert.AreNotEqual(WeightedEdge <int> .None, reversed.GetEdge(3, 2));
Assert.AreEqual(WeightedEdge <int> .None, reversed.GetEdge(2, 3));
Assert.AreNotEqual(WeightedEdge <int> .None, reversed.GetEdge(1, 3));
Assert.AreEqual(WeightedEdge <int> .None, reversed.GetEdge(3, 1));
}