static void ConnectTest()
{
Console.Write("This test displays a connection table for a directed graph\n\n");
// create the graph
DGraph tree1 = new DGraph();
//add nodes
tree1.AddNode('A');
tree1.AddNode('C');
tree1.AddNode('T');
tree1.AddNode('Z');
tree1.AddNode('X');
tree1.AddNode('K');
tree1.AddNode('Q');
tree1.AddNode('J');
tree1.AddNode('M');
tree1.AddNode('U');
// add some edges
tree1.AddEdge('A', 'C');
tree1.AddEdge('A', 'T');
tree1.AddEdge('A', 'Z');
tree1.AddEdge('X', 'C');
tree1.AddEdge('C', 'X');
tree1.AddEdge('C', 'K');
tree1.AddEdge('T', 'Q');
tree1.AddEdge('K', 'Q');
tree1.AddEdge('Q', 'J');
tree1.AddEdge('J', 'M');
tree1.AddEdge('Z', 'X');
tree1.AddEdge('U', 'M');
tree1.AddEdge('K', 'X');
// uncomment the next line to see your node list, edge list, and edge matrix
Debug1(tree1);
Console.Write("The breadth first min tree from A should be: \n");
Console.Write(" A-Z A-Z A-T A-C Z-X T-Q C-K Q-J J-M with U unreachable\n");
Console.Write(" is: " + tree1.BreadthFirst('A') + "\n\n");
Console.Write("Note that the order of nodes in your output might differ\n");
Console.Write("what is important which nodes are reached from each start\n");
Console.Write("The graph connect table should be: \n");
Console.Write("A: Z X C K Q J M T \n");
Console.Write("C: K X Q J M\n");
Console.Write("T: Q J M\n");
Console.Write("Z: X C K Q J M\n");
Console.Write("X: C K Q J M\n");
Console.Write("K: X C Q J M\n");
Console.Write("Q: J M\n");
Console.Write("J: M\n");
Console.Write("M:\n");
Console.Write("U: M \n\n");
Console.Write("The graph connect table is: \n");
Console.Write(tree1.ConnectTable() + "\n\n");
Console.Write("End of testing connection table\n\n");
}