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64 lines
1.3 KiB
64 lines
1.3 KiB
import io
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import networkx as nx
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from networkx.readwrite.p2g import read_p2g, write_p2g
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from networkx.utils import edges_equal
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class TestP2G:
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@classmethod
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def setup_class(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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def test_read_p2g(self):
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s = b"""\
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name
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3 4
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a
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1 2
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b
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c
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0 2
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"""
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bytesIO = io.BytesIO(s)
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DG = read_p2g(bytesIO)
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assert DG.name == "name"
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assert sorted(DG) == ["a", "b", "c"]
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assert edges_equal(
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DG.edges(), [("a", "c"), ("a", "b"), ("c", "a"), ("c", "c")], directed=True
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)
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def test_write_p2g(self):
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s = b"""foo
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3 2
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1
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1
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2
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2
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3
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"""
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fh = io.BytesIO()
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G = nx.DiGraph()
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G.name = "foo"
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G.add_edges_from([(1, 2), (2, 3)])
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write_p2g(G, fh)
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fh.seek(0)
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r = fh.read()
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assert r == s
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def test_write_read_p2g(self):
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fh = io.BytesIO()
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G = nx.DiGraph()
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G.name = "foo"
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G.add_edges_from([("a", "b"), ("b", "c")])
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write_p2g(G, fh)
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fh.seek(0)
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H = read_p2g(fh)
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assert edges_equal(G.edges(), H.edges(), directed=True)
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