Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/networkx/utils/tests/test_random_sequence.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
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1 import pytest |
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2 from networkx.utils import ( |
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3 powerlaw_sequence, |
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4 zipf_rv, |
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5 random_weighted_sample, |
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6 weighted_choice, |
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7 ) |
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8 |
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9 |
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10 def test_degree_sequences(): |
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11 seq = powerlaw_sequence(10, seed=1) |
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12 seq = powerlaw_sequence(10) |
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13 assert len(seq) == 10 |
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14 |
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15 |
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16 def test_zipf_rv(): |
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17 r = zipf_rv(2.3, xmin=2, seed=1) |
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18 r = zipf_rv(2.3, 2, 1) |
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19 r = zipf_rv(2.3) |
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20 assert type(r), int |
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21 pytest.raises(ValueError, zipf_rv, 0.5) |
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22 pytest.raises(ValueError, zipf_rv, 2, xmin=0) |
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23 |
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24 |
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25 def test_random_weighted_sample(): |
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26 mapping = {"a": 10, "b": 20} |
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27 s = random_weighted_sample(mapping, 2, seed=1) |
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28 s = random_weighted_sample(mapping, 2) |
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29 assert sorted(s) == sorted(mapping.keys()) |
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30 pytest.raises(ValueError, random_weighted_sample, mapping, 3) |
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31 |
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32 |
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33 def test_random_weighted_choice(): |
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34 mapping = {"a": 10, "b": 0} |
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35 c = weighted_choice(mapping, seed=1) |
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36 c = weighted_choice(mapping) |
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37 assert c == "a" |