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networkx/readwrite/json_graph/tests/test_tree.py

 

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import json

 

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from nose.tools import assert_equal, assert_raises, assert_not_equal,assert_true

 

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import networkx as nx

 

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from networkx.readwrite.json_graph import *

 

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class TestTree:

 

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    def test_graph(self):

 

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        G=nx.DiGraph()

 

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        G.add_nodes_from([1,2,3],color='red')

 

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        G.add_edge(1,2,foo=7)

 

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        G.add_edge(1,3,foo=10)

 

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        G.add_edge(3,4,foo=10)

 

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        H = tree_graph(tree_data(G,1))

 

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        nx.is_isomorphic(G,H)

 

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    def test_graph_attributes(self):

 

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        G=nx.DiGraph()

 

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        G.add_nodes_from([1,2,3],color='red')

 

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        G.add_edge(1,2,foo=7)

 

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        G.add_edge(1,3,foo=10)

 

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        G.add_edge(3,4,foo=10)

 

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        H = tree_graph(tree_data(G,1))

 

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        assert_equal(H.node[1]['color'],'red')

 

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        d = json.dumps(tree_data(G,1))

 

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        H = tree_graph(json.loads(d))

 

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        assert_equal(H.node[1]['color'],'red')

 

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