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#!/usr/bin/env python
from nose.tools import *
import networkx
class TestDistance:
def setUp(self):
G=networkx.Graph()
from networkx import convert_node_labels_to_integers as cnlti
G=cnlti(networkx.grid_2d_graph(4,4),first_label=1,ordering="sorted")
self.G=G
def test_eccentricity(self):
assert_equal(networkx.eccentricity(self.G,1),6)
e=networkx.eccentricity(self.G)
assert_equal(e[1],6)
def test_diameter(self):
assert_equal(networkx.diameter(self.G),6)
def test_radius(self):
assert_equal(networkx.radius(self.G),4)
def test_periphery(self):
assert_equal(set(networkx.periphery(self.G)),set([1, 4, 13, 16]))
def test_center(self):
assert_equal(set(networkx.center(self.G)),set([6, 7, 10, 11]))
def test_radius_exception(self):
G=networkx.Graph()
G.add_edge(1,2)
G.add_edge(3,4)
assert_raises(networkx.NetworkXError, networkx.diameter, G)
def test_eccentricity_exception(self):
G=networkx.Graph()
G.add_edge(1,2)
G.add_edge(3,4)
assert_raises(networkx.NetworkXError, networkx.eccentricity, G)
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