public void Test3()
{
var a = new GraphNode <char>('A');
var b = new GraphNode <char>('B');
var e = new GraphNode <char>('E');
var f = new GraphNode <char>('F');
var d = new GraphNode <char>('D');
a.Add(b);
b.Add(e);
e.Add(f);
f.Add(d);
d.Add(a);
// another branch
var c = new GraphNode <char>('C');
var g = new GraphNode <char>('G');
a.Add(c);
c.Add(g);
// another branch
var x = new GraphNode <char>('X');
var w = new GraphNode <char>('W');
var k = new GraphNode <char>('K');
c.Add(x);
x.Add(w);
w.Add(k);
var detect = new DetectCycleInAGraph();
var hasCycle = detect.HasCycle(a);
Assert.IsTrue(hasCycle);
}
public void Test2()
{
var start = new GraphNode <int>(10);
var twenty = new GraphNode <int>(20);
var thirty = new GraphNode <int>(30);
start.Add(twenty);
twenty.Add(thirty);
var detect = new DetectCycleInAGraph();
var hasCycle = detect.HasCycle(start);
Assert.IsFalse(hasCycle);
}