def test_multigraph_unweighted(self):
        edges = [(0, 1), (1, 2), (2, 3)]
        G = nx.MultiGraph(2 * edges)
        H = nx.Graph(G)
        G_cells = nx.voronoi_cells(G, {0, 3})
        H_cells = nx.voronoi_cells(H, {0, 3})
        assert_equal(G_cells, H_cells)
Tests that the Voronoi cells for a multigraph are the same as
dataset/ETHPy150Open networkx/networkx/networkx/algorithms/tests/test_voronoi.py/TestVoronoiCells.test_multigraph_unweighted