1 files changed, 41 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/networkx/algorithms/tests/test_vitality.py b/.venv/lib/python3.12/site-packages/networkx/algorithms/tests/test_vitality.py
new file mode 100644
index 00000000..248206e6
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/networkx/algorithms/tests/test_vitality.py
@@ -0,0 +1,41 @@
+import networkx as nx
+
+
+class TestClosenessVitality:
+    def test_unweighted(self):
+        G = nx.cycle_graph(3)
+        vitality = nx.closeness_vitality(G)
+        assert vitality == {0: 2, 1: 2, 2: 2}
+
+    def test_weighted(self):
+        G = nx.Graph()
+        nx.add_cycle(G, [0, 1, 2], weight=2)
+        vitality = nx.closeness_vitality(G, weight="weight")
+        assert vitality == {0: 4, 1: 4, 2: 4}
+
+    def test_unweighted_digraph(self):
+        G = nx.DiGraph(nx.cycle_graph(3))
+        vitality = nx.closeness_vitality(G)
+        assert vitality == {0: 4, 1: 4, 2: 4}
+
+    def test_weighted_digraph(self):
+        G = nx.DiGraph()
+        nx.add_cycle(G, [0, 1, 2], weight=2)
+        nx.add_cycle(G, [2, 1, 0], weight=2)
+        vitality = nx.closeness_vitality(G, weight="weight")
+        assert vitality == {0: 8, 1: 8, 2: 8}
+
+    def test_weighted_multidigraph(self):
+        G = nx.MultiDiGraph()
+        nx.add_cycle(G, [0, 1, 2], weight=2)
+        nx.add_cycle(G, [2, 1, 0], weight=2)
+        vitality = nx.closeness_vitality(G, weight="weight")
+        assert vitality == {0: 8, 1: 8, 2: 8}
+
+    def test_disconnecting_graph(self):
+        """Tests that the closeness vitality of a node whose removal
+        disconnects the graph is negative infinity.
+
+        """
+        G = nx.path_graph(3)
+        assert nx.closeness_vitality(G, node=1) == -float("inf")