diff env/lib/python3.9/site-packages/networkx/algorithms/bipartite/tests/test_redundancy.py @ 0:4f3585e2f14b draft default tip

"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/env/lib/python3.9/site-packages/networkx/algorithms/bipartite/tests/test_redundancy.py	Mon Mar 22 18:12:50 2021 +0000
@@ -0,0 +1,33 @@
+"""Unit tests for the :mod:`networkx.algorithms.bipartite.redundancy` module.
+
+"""
+
+import pytest
+
+from networkx import cycle_graph
+from networkx import NetworkXError
+from networkx.algorithms.bipartite import complete_bipartite_graph
+from networkx.algorithms.bipartite import node_redundancy
+
+
+def test_no_redundant_nodes():
+    G = complete_bipartite_graph(2, 2)
+    rc = node_redundancy(G)
+    assert all(redundancy == 1 for redundancy in rc.values())
+
+
+def test_redundant_nodes():
+    G = cycle_graph(6)
+    edge = {0, 3}
+    G.add_edge(*edge)
+    redundancy = node_redundancy(G)
+    for v in edge:
+        assert redundancy[v] == 2 / 3
+    for v in set(G) - edge:
+        assert redundancy[v] == 1
+
+
+def test_not_enough_neighbors():
+    with pytest.raises(NetworkXError):
+        G = complete_bipartite_graph(1, 2)
+        node_redundancy(G)