285 lines
13 KiB
Python
285 lines
13 KiB
Python
# pyRCV2: Preferential vote counting
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# Copyright © 2020 Lee Yingtong Li (RunasSudo)
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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from pytest import approx
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from pytest_steps import test_steps
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import pyRCV2.blt
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import pyRCV2.numbers
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from pyRCV2.method.wright import WrightSTVCounter
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from pyRCV2.model import CandidateState, CountCompleted
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def count_until_exclude(counter):
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while True:
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result = counter.step()
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if isinstance(result, CountCompleted):
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return result
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if result.comment.startswith('Exclusion of '):
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return result
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@test_steps(*['Round {}'.format(i) for i in range(1, 31)])
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def test_csm15():
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"""Compare count of CSM15.blt with model result at https://www.eveonline.com/article/qbtyyo/meet-the-new-council"""
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pyRCV2.numbers.set_numclass(pyRCV2.numbers.Native)
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with open('tests/data/CSM15.blt', 'r') as f:
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election = pyRCV2.blt.readBLT(f.read())
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assert len(election.candidates) == 40
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cands = {c.name: c for c in election.candidates}
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counter = WrightSTVCounter(election)
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# Round 1
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result = counter.reset()
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assert result.candidates[cands['Merkelchen']].votes.impl == 5325
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assert result.candidates[cands['Gobbins']].votes.impl == 3709
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assert result.candidates[cands['Vily']].votes.impl == 2789
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assert result.candidates[cands['Maria Taylor']].votes.impl == 2556
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assert result.candidates[cands['Brisc Rubal']].votes.impl == 1794
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assert result.candidates[cands['Ikarus Cesaille']].votes.impl == 1471
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assert result.candidates[cands['Phantomite']].votes.impl == 1462
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assert result.candidates[cands['Juvenius Drakonius']].votes.impl == 1375
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assert result.candidates[cands['Torvald Uruz']].votes.impl == 1297
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assert result.candidates[cands['Mike Azariah']].votes.impl == 1242
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assert result.candidates[cands['BlazingBunny']].votes.impl == 1042
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assert result.candidates[cands['ExookiZ']].votes.impl == 961
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assert result.candidates[cands['Loroseco Kross']].votes.impl == 938
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assert result.candidates[cands['Kenneth Feld']].votes.impl == 874
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assert result.candidates[cands['Jurius Doctor']].votes.impl == 747
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assert result.candidates[cands['Stitch Kaneland']].votes.impl == 698
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assert result.candidates[cands['DutchGunner']].votes.impl == 690
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assert result.candidates[cands['Insidious Sainthood']].votes.impl == 583
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assert result.candidates[cands['Alexis Finch']].votes.impl == 526
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assert result.candidates[cands['Steadyo']].votes.impl == 499
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assert result.candidates[cands['Innominate']].votes.impl == 493
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assert result.candidates[cands['Meredith en Thielles']].votes.impl == 477
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assert result.candidates[cands['Ironwulf']].votes.impl == 472
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assert result.candidates[cands['PJHustle']].votes.impl == 443
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assert result.candidates[cands['Darius Caliente']].votes.impl == 442
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assert result.candidates[cands['January Valentine']].votes.impl == 414
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assert result.candidates[cands['The Oz']].votes.impl == 407
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assert result.candidates[cands['Pandora Singularity']].votes.impl == 355
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assert result.candidates[cands['UAxDEATH']].votes.impl == 323
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assert result.candidates[cands['Komi Valentine']].votes.impl == 277
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assert result.candidates[cands['Murray Rothbardo']].votes.impl == 184
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assert result.candidates[cands['Xenuria']].votes.impl == 179
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assert result.candidates[cands['Prospektor Schipplock']].votes.impl == 177
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assert result.candidates[cands['Styxx']].votes.impl == 172
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assert result.candidates[cands['boernl']].votes.impl == 171
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assert result.candidates[cands['Dhuras']].votes.impl == 162
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assert result.candidates[cands['Rheaha Preynar']].votes.impl == 125
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assert result.candidates[cands['Kalen Tsero']].votes.impl == 113
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assert result.candidates[cands['Storm Delay']].votes.impl == 96
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assert result.candidates[cands['Leehams DaWildabeast']].votes.impl == 60
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Leehams DaWildabeast']].votes.impl == approx(63.208412)
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assert result.candidates[cands['Leehams DaWildabeast']].state == CandidateState.EXCLUDED
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yield 'Round 1'
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# Round 2
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Storm Delay']].votes.impl == approx(112.229279)
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assert result.candidates[cands['Storm Delay']].state == CandidateState.EXCLUDED
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yield 'Round 2'
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# Round 3
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Kalen Tsero']].votes.impl == approx(115.888433)
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assert result.candidates[cands['Kalen Tsero']].state == CandidateState.EXCLUDED
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yield 'Round 3'
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# Round 4
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Rheaha Preynar']].votes.impl == approx(133.122193)
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assert result.candidates[cands['Rheaha Preynar']].state == CandidateState.EXCLUDED
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yield 'Round 4'
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# Round 5
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Dhuras']].votes.impl == approx(170.123665)
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assert result.candidates[cands['Dhuras']].state == CandidateState.EXCLUDED
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yield 'Round 5'
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# Round 6
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['boernl']].votes.impl == approx(181.377165)
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assert result.candidates[cands['boernl']].state == CandidateState.EXCLUDED
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yield 'Round 6'
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# Round 7
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Styxx']].votes.impl == approx(184.463008)
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assert result.candidates[cands['Styxx']].state == CandidateState.EXCLUDED
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yield 'Round 7'
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# Round 8
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Murray Rothbardo']].votes.impl == approx(189.651433)
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assert result.candidates[cands['Murray Rothbardo']].state == CandidateState.EXCLUDED
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yield 'Round 8'
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# Round 9
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Xenuria']].votes.impl == approx(198.266912)
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assert result.candidates[cands['Xenuria']].state == CandidateState.EXCLUDED
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yield 'Round 9'
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# Round 10
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Prospektor Schipplock']].votes.impl == approx(213.386936)
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assert result.candidates[cands['Prospektor Schipplock']].state == CandidateState.EXCLUDED
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yield 'Round 10'
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# Round 11
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Komi Valentine']].votes.impl == approx(336.404306)
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assert result.candidates[cands['Komi Valentine']].state == CandidateState.EXCLUDED
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yield 'Round 11'
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# Round 12
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['UAxDEATH']].votes.impl == approx(357.732024)
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assert result.candidates[cands['UAxDEATH']].state == CandidateState.EXCLUDED
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yield 'Round 12'
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# Round 13
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Pandora Singularity']].votes.impl == approx(413.808353)
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assert result.candidates[cands['Pandora Singularity']].state == CandidateState.EXCLUDED
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yield 'Round 13'
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# Round 14
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['PJHustle']].votes.impl == approx(478.737771)
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assert result.candidates[cands['PJHustle']].state == CandidateState.EXCLUDED
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yield 'Round 14'
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# Round 15
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Ironwulf']].votes.impl == approx(528.845712)
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assert result.candidates[cands['Ironwulf']].state == CandidateState.EXCLUDED
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yield 'Round 15'
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# Round 16
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['January Valentine']].votes.impl == approx(557.154707)
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assert result.candidates[cands['January Valentine']].state == CandidateState.EXCLUDED
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yield 'Round 16'
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# Round 17
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Darius Caliente']].votes.impl == approx(620.307162)
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assert result.candidates[cands['Darius Caliente']].state == CandidateState.EXCLUDED
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yield 'Round 17'
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# Round 18
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Alexis Finch']].votes.impl == approx(630.517365)
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assert result.candidates[cands['Alexis Finch']].state == CandidateState.EXCLUDED
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yield 'Round 18'
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# Round 19
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['The Oz']].votes.impl == approx(673.241462)
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assert result.candidates[cands['The Oz']].state == CandidateState.EXCLUDED
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yield 'Round 19'
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# Round 20
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Steadyo']].votes.impl == approx(693.622387)
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assert result.candidates[cands['Steadyo']].state == CandidateState.EXCLUDED
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yield 'Round 20'
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# Round 21
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Insidious Sainthood']].votes.impl == approx(711.112702)
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assert result.candidates[cands['Insidious Sainthood']].state == CandidateState.EXCLUDED
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yield 'Round 21'
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# Round 22
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Meredith en Thielles']].votes.impl == approx(773.804223)
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assert result.candidates[cands['Meredith en Thielles']].state == CandidateState.EXCLUDED
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yield 'Round 22'
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# Round 23
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Stitch Kaneland']].votes.impl == approx(944.597498)
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assert result.candidates[cands['Stitch Kaneland']].state == CandidateState.EXCLUDED
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yield 'Round 23'
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# Round 24
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['DutchGunner']].votes.impl == approx(1056.847624)
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assert result.candidates[cands['DutchGunner']].state == CandidateState.EXCLUDED
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yield 'Round 24'
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# Round 25
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Jurius Doctor']].votes.impl == approx(1254.134642)
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assert result.candidates[cands['Jurius Doctor']].state == CandidateState.EXCLUDED
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yield 'Round 25'
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# Round 26
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['BlazingBunny']].votes.impl == approx(1448.527563)
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assert result.candidates[cands['BlazingBunny']].state == CandidateState.EXCLUDED
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yield 'Round 26'
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# Round 27
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['ExookiZ']].votes.impl == approx(1527.088745)
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assert result.candidates[cands['ExookiZ']].state == CandidateState.EXCLUDED
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yield 'Round 27'
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# Round 28
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Juvenius Drakonius']].votes.impl == approx(1614.455637)
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assert result.candidates[cands['Juvenius Drakonius']].state == CandidateState.EXCLUDED
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yield 'Round 28'
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# Round 29
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Ikarus Cesaille']].votes.impl == approx(1938.970656)
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assert result.candidates[cands['Ikarus Cesaille']].state == CandidateState.EXCLUDED
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yield 'Round 29'
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# Round 30
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result = count_until_exclude(counter)
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assert counter.step_results[-2].candidates[cands['Loroseco Kross']].votes.impl == approx(2306.134123)
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assert result.candidates[cands['Loroseco Kross']].state == CandidateState.EXCLUDED
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result = counter.step()
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assert result.comment == 'Bulk election'
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assert result.candidates[cands['Vily']].state == CandidateState.PROVISIONALLY_ELECTED
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assert result.candidates[cands['Phantomite']].state == CandidateState.PROVISIONALLY_ELECTED
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assert result.candidates[cands['Kenneth Feld']].state == CandidateState.PROVISIONALLY_ELECTED
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assert result.candidates[cands['Merkelchen']].state == CandidateState.PROVISIONALLY_ELECTED
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assert result.candidates[cands['Maria Taylor']].state == CandidateState.PROVISIONALLY_ELECTED
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assert result.candidates[cands['Brisc Rubal']].state == CandidateState.PROVISIONALLY_ELECTED
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assert result.candidates[cands['Gobbins']].state == CandidateState.PROVISIONALLY_ELECTED
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assert result.candidates[cands['Torvald Uruz']].state == CandidateState.PROVISIONALLY_ELECTED
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assert result.candidates[cands['Mike Azariah']].state == CandidateState.PROVISIONALLY_ELECTED
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assert result.candidates[cands['Innominate']].state == CandidateState.PROVISIONALLY_ELECTED
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result = counter.step()
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assert isinstance(result, CountCompleted)
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yield 'Round 30'
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