def test_nodelist(self):
"""Conversion from graph to sparse matrix to graph with nodelist."""
P4 = path_graph(4)
P3 = path_graph(3)
nodelist = list(P3.nodes())
A = nx.to_scipy_sparse_matrix(P4, nodelist=nodelist)
GA = nx.Graph(A)
self.assert_isomorphic(GA, P3)
# Make nodelist ambiguous by containing duplicates.
nodelist += [nodelist[0]]
pytest.raises(nx.NetworkXError, nx.to_numpy_matrix, P3, nodelist=nodelist)
def test_identity_weighted_digraph_matrix(self):
"""Conversion from weighted digraph to sparse matrix to weighted digraph."""
A = nx.to_scipy_sparse_matrix(self.G4)
self.identity_conversion(self.G4, A, nx.DiGraph())
def test_identity_digraph_matrix(self):
"Conversion from digraph to sparse matrix to digraph."
A = nx.to_scipy_sparse_matrix(self.G2)
self.identity_conversion(self.G2, A, nx.DiGraph())
def test_identity_graph_matrix(self):
"Conversion from graph to sparse matrix to graph."
A = nx.to_scipy_sparse_matrix(self.G1)
self.identity_conversion(self.G1, A, nx.Graph())
