public void TestDeleteEdge()
{
Graph gr = new Graph();
Assert.AreEqual(0, gr.InsertNode());
Assert.AreEqual(1, gr.InsertNode());
Assert.AreEqual(2, gr.InsertNode());
gr.InsertEdge(0, 1);
gr.InsertEdge(1, 2);
gr.InsertEdge(2, 0);
gr.DeleteEdge(1, 2);
Assert.AreEqual(1, gr.OutEdgeCount(0));
Assert.AreEqual(0, gr.OutEdgeCount(1));
Assert.AreEqual(1, gr.OutEdgeCount(2));
// Trigger the exception - no edge from 1 to 0...
gr.DeleteEdge(1, 0);
}
public void TestDeleteEdge()
{
var gr = new Graph();
Assert.AreEqual(0, gr.InsertVertex());
Assert.AreEqual(1, gr.InsertVertex());
Assert.AreEqual(2, gr.InsertVertex());
gr.AddEdge(0, 1);
gr.AddEdge(1, 2);
gr.AddEdge(2, 0);
gr.DeleteEdge(1, 2);
Assert.AreEqual(1, gr.OutEdgeCount(0));
Assert.AreEqual(0, gr.OutEdgeCount(1));
Assert.AreEqual(1, gr.OutEdgeCount(2));
// Trigger the exception - no edge from 1 to 0...
Assert.Throws(typeof(VfException), () => gr.DeleteEdge(1, 0));
}
public void TestMatchComplex()
{
VfState vfs = VfsTest();
Assert.IsTrue(vfs.FMatch());
Graph graph2 = VfsTestGraph2();
graph2.DeleteEdge(1, 4);
graph2.InsertEdge(2, 4);
vfs = new VfState(VfsTestGraph1(), graph2);
Assert.IsFalse(vfs.FMatch());
Graph graph1 = new Graph();
graph1.InsertNodes(11);
graph2 = new Graph();
graph2.InsertNodes(11);
graph1.InsertEdge(0, 2);
graph1.InsertEdge(0, 1);
graph1.InsertEdge(2, 4);
graph1.InsertEdge(2, 5);
graph1.InsertEdge(1, 5);
graph1.InsertEdge(1, 3);
graph1.InsertEdge(4, 7);
graph1.InsertEdge(5, 7);
graph1.InsertEdge(5, 8);
graph1.InsertEdge(5, 6);
graph1.InsertEdge(3, 6);
graph1.InsertEdge(7, 10);
graph1.InsertEdge(6, 9);
graph1.InsertEdge(10, 8);
graph1.InsertEdge(8, 9);
graph2.InsertEdge(0, 1);
graph2.InsertEdge(0, 9);
graph2.InsertEdge(1, 2);
graph2.InsertEdge(1, 10);
graph2.InsertEdge(9, 10);
graph2.InsertEdge(9, 8);
graph2.InsertEdge(2, 3);
graph2.InsertEdge(10, 3);
graph2.InsertEdge(10, 5);
graph2.InsertEdge(10, 7);
graph2.InsertEdge(8, 7);
graph2.InsertEdge(3, 4);
graph2.InsertEdge(7, 6);
graph2.InsertEdge(4, 5);
graph2.InsertEdge(5, 6);
vfs = new VfState(graph1, graph2, true);
Assert.IsTrue(vfs.FMatch());
}