def test_not_connected(): g = Graph() pandora = g.add_node("Pandora") arendelle = g.add_node("Arendelle") assert g.connected(pandora, arendelle) is False assert g.connected(arendelle, pandora) is False
def test_one_way_connected(): g = Graph() pandora = g.add_node("Pandora") arendelle = g.add_node("Arendelle") g.add_edge(pandora, arendelle) assert g.connected(pandora, arendelle) is True assert g.connected(arendelle, pandora) is False