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- """Unit tests for the :mod:`networkx.generators.cographs` module.
- """
- import networkx as nx
- def test_random_cograph():
- n = 3
- G = nx.random_cograph(n)
- assert len(G) == 2**n
- # Every connected subgraph of G has diameter <= 2
- if nx.is_connected(G):
- assert nx.diameter(G) <= 2
- else:
- components = nx.connected_components(G)
- for component in components:
- assert nx.diameter(G.subgraph(component)) <= 2
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