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"""Unit tests for the :mod:`networkx.generators.mycielski` module."""
import networkx as nx
class TestMycielski:
def test_construction(self):
G = nx.path_graph(2)
M = nx.mycielskian(G)
assert nx.is_isomorphic(M, nx.cycle_graph(5))
def test_size(self):
G = nx.path_graph(2)
M = nx.mycielskian(G, 2)
assert len(M) == 11
assert M.size() == 20
def test_mycielski_graph_generator(self):
G = nx.mycielski_graph(1)
assert nx.is_isomorphic(G, nx.empty_graph(1))
G = nx.mycielski_graph(2)
assert nx.is_isomorphic(G, nx.path_graph(2))
G = nx.mycielski_graph(3)
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)))
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