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import json
from nose.tools import assert_equal, assert_raises, assert_not_equal,assert_true
import networkx as nx
from networkx.readwrite.json_graph import *
class TestTree:
def test_graph(self):
G=nx.DiGraph()
G.add_nodes_from([1,2,3],color='red')
G.add_edge(1,2,foo=7)
G.add_edge(1,3,foo=10)
G.add_edge(3,4,foo=10)
H = tree_graph(tree_data(G,1))
nx.is_isomorphic(G,H)
def test_graph_attributes(self):
G=nx.DiGraph()
G.add_nodes_from([1,2,3],color='red')
G.add_edge(1,2,foo=7)
G.add_edge(1,3,foo=10)
G.add_edge(3,4,foo=10)
H = tree_graph(tree_data(G,1))
assert_equal(H.node[1]['color'],'red')
d = json.dumps(tree_data(G,1))
H = tree_graph(json.loads(d))
assert_equal(H.node[1]['color'],'red')
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