/usr/lib/python2.7/dist-packages/networkx/utils/tests/test_random_sequence.py is in python-networkx 1.8.1-0ubuntu3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | #!/usr/bin/env python
from nose.tools import *
from networkx.utils import uniform_sequence,powerlaw_sequence,\
create_degree_sequence,zipf_rv,zipf_sequence,random_weighted_sample,\
weighted_choice
import networkx.utils
def test_degree_sequences():
seq=create_degree_sequence(10,uniform_sequence)
assert_equal(len(seq), 10)
seq=create_degree_sequence(10,powerlaw_sequence)
assert_equal(len(seq), 10)
def test_zipf_rv():
r = zipf_rv(2.3)
assert_true(type(r),int)
assert_raises(ValueError,zipf_rv,0.5)
assert_raises(ValueError,zipf_rv,2,xmin=0)
def test_zipf_sequence():
s = zipf_sequence(10)
assert_equal(len(s),10)
def test_random_weighted_sample():
mapping={'a':10,'b':20}
s = random_weighted_sample(mapping,2)
assert_equal(sorted(s),sorted(mapping.keys()))
assert_raises(ValueError,random_weighted_sample,mapping,3)
def test_random_weighted_choice():
mapping={'a':10,'b':0}
c = weighted_choice(mapping)
assert_equal(c,'a')
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