public void PathExists()
{
MyGraph graph = new MyGraph();
GraphNode node1 = new GraphNode()
{
Value = 1
};
GraphNode node2 = new GraphNode()
{
Value = 2
};
GraphNode node3 = new GraphNode()
{
Value = 3
};
GraphNode node4 = new GraphNode()
{
Value = 4
};
node1.Neighbors.Add(node2);
node2.Neighbors.Add(node3);
node2.Neighbors.Add(node4);
RouteFinder routeFinder = new RouteFinder();
Assert.True(routeFinder.PathExists(graph, node1, node3));
Assert.False(routeFinder.PathExists(graph, node3, node4));
}