35 lines
773 B
Python
35 lines
773 B
Python
# test_isolate.py - unit tests for the isolate module
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#
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# Copyright 2015 NetworkX developers.
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#
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# This file is part of NetworkX.
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#
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# NetworkX is distributed under a BSD license; see LICENSE.txt for more
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# information.
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"""Unit tests for the :mod:`networkx.algorithms.isolates` module."""
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import networkx as nx
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def test_is_isolate():
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G = nx.Graph()
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G.add_edge(0, 1)
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G.add_node(2)
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assert not nx.is_isolate(G, 0)
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assert not nx.is_isolate(G, 1)
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assert nx.is_isolate(G, 2)
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def test_isolates():
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G = nx.Graph()
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G.add_edge(0, 1)
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G.add_nodes_from([2, 3])
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assert sorted(nx.isolates(G)) == [2, 3]
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def test_number_of_isolates():
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G = nx.Graph()
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G.add_edge(0, 1)
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G.add_nodes_from([2, 3])
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assert nx.number_of_isolates(G) == 2
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