Improving test coverage for Mycielsky.py (#7271)

* Improving Mycielski_TestCov * fix ruff error
networkx · Feb 6, 2024 · 31ef963 · 31ef963
1 parent 923e029
commit 31ef963
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/networkx/generators/tests/test_mycielski.py b/networkx/generators/tests/test_mycielski.py
@@ -1,5 +1,7 @@
 """Unit tests for the :mod:`networkx.generators.mycielski` module."""
 
+import pytest
+
 import networkx as nx
 
 
@@ -24,3 +26,5 @@ def test_mycielski_graph_generator(self):
         assert nx.is_isomorphic(G, nx.cycle_graph(5))
         G = nx.mycielski_graph(4)
         assert nx.is_isomorphic(G, nx.mycielskian(nx.cycle_graph(5)))
+        with pytest.raises(nx.NetworkXError, match="must satisfy n >= 1"):
+            nx.mycielski_graph(0)