/** . */ public void testDirectedGraph() { ListenableDirectedGraph<String, DefaultEdge> g = new ListenableDirectedGraph<String, DefaultEdge>(DefaultEdge.class); g.addVertex(V1); g.addVertex(V2); g.addVertex(V3); g.addEdge(V1, V2); ConnectivityInspector<String, DefaultEdge> inspector = new ConnectivityInspector<String, DefaultEdge>(g); g.addGraphListener(inspector); assertEquals(false, inspector.isGraphConnected()); g.addEdge(V1, V3); assertEquals(true, inspector.isGraphConnected()); }