public void GetEdge_GraphWithEdge_SourceAndTargetAreCorrect()
{
var graph = new DirectedGraphWithoutInEdges <int, int>();
var v0 = graph.AddVertex(0);
var v1 = graph.AddVertex(0);
var e = graph.AddEdge(v0, v1, 0);
Assert.That(graph.GetSource(e), Is.EqualTo(v0));
Assert.That(graph.GetTarget(e), Is.EqualTo(v1));
}
public void AddEdge_GraphWithTwoVertices_SourceHasOutEdge()
{
var graph = new DirectedGraphWithoutInEdges <int, int>();
var v1 = graph.AddVertex(0);
var v2 = graph.AddVertex(0);
graph.AddEdge(v1, v2, 0);
Assert.That(graph.GetOutDegree(v1), Is.EqualTo(1));
var outEdges = graph.GetOutEdges(v1);
Assert.That(outEdges.Length, Is.EqualTo(1));
Assert.That(graph.GetSource(outEdges[0]), Is.EqualTo(v1));
Assert.That(graph.GetTarget(outEdges[0]), Is.EqualTo(v2));
}
