public void Find_FromVertexDisconnectedFromToVertex_EmptyPath()
{
var graph = AdjacencyListFactory.CreateDirected();
graph.AddVertex("a")
.AddEdge("b")
.AddEdge("c")
.AddEdge("g");
graph.AddVertex("c")
.AddEdge("d")
.AddEdge("e")
.AddEdge("f");
graph.AddVertex("f")
.AddEdge("g");
//path of graph not connected with others
graph.AddVertex("m")
.AddEdge("n");
graph.AddVertex("n")
.AddEdge("o");
var search = new DepthFirstSearch(graph);
var result = search.BuildPath("a").GetPathString("n");
result.Should().Be("");
}
public void Find_ValidInput_ShouldFindPath()
{
var graph = AdjacencyListFactory.CreateDirected();
graph.AddVertex("a")
.AddEdge("b")
.AddEdge("c")
.AddEdge("g");
graph.AddVertex("c")
.AddEdge("d")
.AddEdge("e")
.AddEdge("f");
graph.AddVertex("f")
.AddEdge("g");
var search = new DepthFirstSearch(graph);
var result = search.BuildPath("a").GetPathString("e");
(result == "ace" || result == "agfce").Should().BeTrue();
}