def test_disconnecting_graph(self):
        G = nx.path_graph(3)
        assert_equal(nx.closeness_vitality(G, node=1), -float('inf'))
Tests that the closeness vitality of a node whose removal
dataset/ETHPy150Open networkx/networkx/networkx/algorithms/tests/test_vitality.py/TestClosenessVitality.test_disconnecting_graph