Mercurial > repos > shellac > sam_consensus_v3
diff env/lib/python3.9/site-packages/networkx/algorithms/tests/test_graph_hashing.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/env/lib/python3.9/site-packages/networkx/algorithms/tests/test_graph_hashing.py Mon Mar 22 18:12:50 2021 +0000 @@ -0,0 +1,42 @@ +import networkx as nx + + +def test_empty_graph_hash(): + G1 = nx.empty_graph() + G2 = nx.empty_graph() + + h1 = nx.weisfeiler_lehman_graph_hash(G1) + h2 = nx.weisfeiler_lehman_graph_hash(G2) + + assert h1 == h2 + + +def test_relabel(): + G1 = nx.Graph() + G1.add_edges_from( + [ + (1, 2, {"label": "A"}), + (2, 3, {"label": "A"}), + (3, 1, {"label": "A"}), + (1, 4, {"label": "B"}), + ] + ) + h_before = nx.weisfeiler_lehman_graph_hash(G1, edge_attr="label") + + G2 = nx.relabel_nodes(G1, {u: -1 * u for u in G1.nodes()}) + + h_after = nx.weisfeiler_lehman_graph_hash(G2, edge_attr="label") + + assert h_after == h_before + + +def test_directed(): + G1 = nx.DiGraph() + G1.add_edges_from([(1, 2), (2, 3), (3, 1), (1, 5)]) + + h_directed = nx.weisfeiler_lehman_graph_hash(G1) + + G2 = G1.to_undirected() + h_undirected = nx.weisfeiler_lehman_graph_hash(G2) + + assert h_directed != h_undirected