51 lines
1.2 KiB
Python
51 lines
1.2 KiB
Python
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"""
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Unit tests for yaml.
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"""
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import os
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import tempfile
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import pytest
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yaml = pytest.importorskip("yaml")
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import networkx as nx
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from networkx.testing import assert_edges_equal, assert_nodes_equal
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class TestYaml:
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@classmethod
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def setup_class(cls):
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cls.build_graphs()
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@classmethod
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def build_graphs(cls):
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cls.G = nx.Graph(name="test")
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e = [("a", "b"), ("b", "c"), ("c", "d"), ("d", "e"), ("e", "f"), ("a", "f")]
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cls.G.add_edges_from(e)
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cls.G.add_node("g")
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cls.DG = nx.DiGraph(cls.G)
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cls.MG = nx.MultiGraph()
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cls.MG.add_weighted_edges_from([(1, 2, 5), (1, 2, 5), (1, 2, 1), (3, 3, 42)])
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def assert_equal(self, G, data=False):
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(fd, fname) = tempfile.mkstemp()
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nx.write_yaml(G, fname)
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Gin = nx.read_yaml(fname)
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assert_nodes_equal(list(G), list(Gin))
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assert_edges_equal(G.edges(data=data), Gin.edges(data=data))
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os.close(fd)
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os.unlink(fname)
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def testUndirected(self):
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self.assert_equal(self.G, data=False)
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def testDirected(self):
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self.assert_equal(self.DG, data=False)
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def testMultiGraph(self):
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self.assert_equal(self.MG, data=True)
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