def test_mwrules_correct_simple(self):
from preferences import Profile
import rules_approval
self.longMessage = True
profile = Profile(4)
profile.add_preferences([[0], [1], [2], [3]])
committeesize = 2
for rule in rules_approval.MWRULES.keys():
if rule == "greedy-monroe": # always returns one committee
continue
self.assertEqual(len(
rules_approval.compute_rule(rule, profile, committeesize)),
6,
msg=rule + " failed")
for rule in rules_approval.MWRULES.keys():
self.assertEqual(len(
rules_approval.compute_rule(rule,
profile,
committeesize,
resolute=True)),
1,
msg=rule + " failed with resolute=True")
def run_test_instance(unittestinstance, profile, committeesize, tests):
import rules_approval
# all rules used?
for rule in rules_approval.MWRULES:
unittestinstance.assertTrue(rule in tests.keys())
for rule in tests.keys():
output = rules_approval.compute_rule(rule,
profile,
committeesize,
resolute=False)
unittestinstance.assertEqual(output,
tests[rule],
msg=rules_approval.MWRULES[rule] +
" failed")
output = rules_approval.compute_rule(rule,
profile,
committeesize,
resolute=True)
unittestinstance.assertEqual(len(output),
1,
msg=rules_approval.MWRULES[rule] +
" failed with resolute=True")
unittestinstance.assertTrue(output[0] in tests[rule],
msg=rules_approval.MWRULES[rule] +
" failed with resolute=True")
def runmwtests(tests, committeesize):
for rule in tests.keys():
output = rules_approval.compute_rule(rule,
profile,
committeesize,
resolute=False)
self.assertEqual(output, tests[rule], msg=rule + " failed")
output = rules_approval.compute_rule(rule,
profile,
committeesize,
resolute=True)
self.assertEqual(len(output),
1,
msg=rule + " failed with resolute=True")
self.assertTrue(output[0] in tests[rule],
msg=rule + " failed with resolute=True")
def test_mwrules__toofewcandidates(self):
from preferences import Profile
import rules_approval
profile = Profile(5)
committeesize = 4
preflist = [[0, 1, 2], [1], [1, 2], [0]]
profile.add_preferences(preflist)
for rule in rules_approval.MWRULES.keys():
with self.assertRaises(Exception):
rules_approval.compute_rule(rule, profile, committeesize)
with self.assertRaises(Exception):
rules_approval.compute_rule(rule,
profile,
committeesize,
resolute=True)
def test_optphrag_notiebreaking(self):
from preferences import Profile
from rules_approval import compute_rule
self.longMessage = True
profile = Profile(6)
profile.add_preferences([[0], [0], [1, 3], [1, 3], [1, 4], [2, 4],
[2, 5], [2, 5]])
committeesize = 3
self.assertEqual(
len(
compute_rule("optphrag",
profile,
committeesize,
resolute=False)), 12)
def test_mwrules_weightsconsidered(self):
from preferences import Profile
from preferences import DichotomousPreferences
import rules_approval
self.longMessage = True
profile = Profile(3)
profile.add_preferences(DichotomousPreferences([0], 3))
profile.add_preferences(DichotomousPreferences([1], 3))
profile.add_preferences(DichotomousPreferences([0]))
committeesize = 2
for rule in rules_approval.MWRULES.keys():
if rule[:6] == "monroe":
continue # Monroe only works with unit weights
self.assertEqual(rules_approval.compute_rule(
rule, profile, committeesize), [[0, 1]],
msg=rule + " failed")
def test_mwrules_weightsconsidered(self):
from preferences import Profile
from preferences import DichotomousPreferences
import rules_approval
self.longMessage = True
profile = Profile(3)
profile.add_preferences(DichotomousPreferences([0]))
profile.add_preferences(DichotomousPreferences([0]))
profile.add_preferences(DichotomousPreferences([1], 5))
profile.add_preferences(DichotomousPreferences([0]))
committeesize = 1
for rule in rules_approval.MWRULES.keys():
if "monroe" in rule or "rule-x" in rule:
# Monroe and rule x only work with unit weights:
continue
result = rules_approval.compute_rule(rule, profile, committeesize)
self.assertTrue([1] in result, msg=rule + " failed" + str(result))