/usr/lib/python3/dist-packages/networkx/drawing/tests/test_pydot.py is in python3-networkx 1.11-2.
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Unit tests for pydot drawing functions.
"""
import os
import tempfile
from nose import SkipTest
from nose.tools import assert_true
import networkx as nx
from networkx.testing import assert_graphs_equal
class TestPydot(object):
@classmethod
def setupClass(cls):
global pydotplus
try:
import pydotplus
except ImportError:
raise SkipTest('pydotplus not available.')
def pydot_checks(self, G):
G.add_edge('A','B')
G.add_edge('A','C')
G.add_edge('B','C')
G.add_edge('A','D')
G.add_node('E')
P = nx.nx_pydot.to_pydot(G)
G2 = G.__class__(nx.nx_pydot.from_pydot(P))
assert_graphs_equal(G, G2)
fname = tempfile.mktemp()
assert_true( P.write_raw(fname) )
Pin = pydotplus.graph_from_dot_file(fname)
n1 = sorted([p.get_name() for p in P.get_node_list()])
n2 = sorted([p.get_name() for p in Pin.get_node_list()])
assert_true( n1 == n2 )
e1=[(e.get_source(),e.get_destination()) for e in P.get_edge_list()]
e2=[(e.get_source(),e.get_destination()) for e in Pin.get_edge_list()]
assert_true( sorted(e1)==sorted(e2) )
Hin = nx.nx_pydot.read_dot(fname)
Hin = G.__class__(Hin)
assert_graphs_equal(G, Hin)
# os.unlink(fname)
def testUndirected(self):
self.pydot_checks(nx.Graph())
def testDirected(self):
self.pydot_checks(nx.DiGraph())
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