X-Git-Url: https://projects.mako.cc/source/rubyvote/blobdiff_plain/0ef8f53fb812bcc40337a92f9c4d11ab193f73a9..d28df2a4166aa83fd9a0eb1f5a0599b8fc1c9798:/test/condorcet_test.rb diff --git a/test/condorcet_test.rb b/test/condorcet_test.rb index 7b49bc6..4607163 100644 --- a/test/condorcet_test.rb +++ b/test/condorcet_test.rb @@ -1,10 +1,10 @@ -#!/usr/bin/ruby +#!/usr/bin/ruby -Ilib require 'test/unit' -require 'election_test_helper' +require 'rubyvote/election' +require 'rubyvote/condorcet' class TestCondorcetVote < Test::Unit::TestCase - include ElectionTestHelper def test_condorcet vote_array = Array.new @@ -12,7 +12,19 @@ class TestCondorcetVote < Test::Unit::TestCase 3.times {vote_array << "CBA".split("")} 2.times {vote_array << "BAC".split("")} - test_winner( ["B"], PureCondorcetVote.new(vote_array).result ) + assert_equal "B", PureCondorcetVote.new(vote_array).result.winners[0] + assert_equal [['B'], ['A'], ['C']], PureCondorcetVote.new(vote_array).results + end + + def test_condorcet_2 + vote_array = Array.new + 3.times {vote_array << "678".split("")} + 3.times {vote_array << "768".split("")} + 2.times {vote_array << "8".split("")} + + v = PureCondorcetVote.new(vote_array) + assert_equal ["6", "7"], v.result.winners + assert_equal [['6', '7'], ['8']], v.results end def test_ssd @@ -26,7 +38,9 @@ class TestCondorcetVote < Test::Unit::TestCase 7.times {vote_array << "DCEBA".split("")} 8.times {vote_array << "EBADC".split("")} - test_winner( "E", CloneproofSSDVote.new(vote_array).result ) + assert_equal "E", CloneproofSSDVote.new(vote_array).result.winners[0] + assert_equal [['E'], ['A'], ['C'], ['B'], ['D']], + CloneproofSSDVote.new(vote_array).results end def test_ssd2 @@ -41,7 +55,9 @@ class TestCondorcetVote < Test::Unit::TestCase 5.times {vote_array << "DBAC".split("")} 4.times {vote_array << "DCBA".split("")} - test_winner( "D", CloneproofSSDVote.new(vote_array).result ) + assert_equal "D", CloneproofSSDVote.new(vote_array).result.winners[0] + assert_equal [['D'], ['A'], ['C'], ['B']], + CloneproofSSDVote.new(vote_array).results end def test_ssd3 @@ -51,6 +67,85 @@ class TestCondorcetVote < Test::Unit::TestCase 2.times {vote_array << "DBCA".split("")} 2.times {vote_array << "CBDA".split("")} - test_winner("B", CloneproofSSDVote.new(vote_array).result ) + assert_equal "B", CloneproofSSDVote.new(vote_array).result.winners[0] + assert_equal [['B'], ['C'], ['D'], ['A']], + CloneproofSSDVote.new(vote_array).results + end + + def test_ssd_incomplete_votes + vote_array = Array.new + 3.times {vote_array << "ABCD".split("")} + 2.times {vote_array << "DABC".split("")} + 2.times {vote_array << "DBCA".split("")} + 4.times {vote_array << ["C"]} + 2.times {vote_array << "DBC".split("")} + + vote = CloneproofSSDVote.new(vote_array) + assert_equal "B", vote.result.winners[0] + assert_equal [['B'], ['C'], ['D'], ['A']], vote.results + end + + def test_ssd_incomplete_votes_2 + vote_array = Array.new + 4.times {vote_array << ["C"]} + 3.times {vote_array << "ABCD".split("")} + 2.times {vote_array << "DABC".split("")} + 2.times {vote_array << "DBCA".split("")} + 2.times {vote_array << "DBC".split("")} + + vote = CloneproofSSDVote.new(vote_array) + assert_equal "B", vote.result.winners[0] + assert_equal [['B'], ['C'], ['D'], ['A']], vote.results + end + + # + # At one point, we happened to be getting correct results due to the + # happy accident that, for example, 'B'.each returns 'B'. The + # following election with a single integer vote catches that + # condition. + # + def test_ssd_single_vote + vote = CloneproofSSDVote.new([[78]]) + assert_equal 78, vote.result.winners[0] + assert_equal [[78]], vote.results + end + + def test_ssd_sparse + vote_array = Array.new + vote_array << ['B', 'D'] + vote_array << ['A', 'C'] + vote_array << ['E', 'C'] + results = CloneproofSSDVote.new(vote_array).results + assert_equal 5, results.flatten.size + end + + def test_ssd_sparse_2 + vote_array = Array.new + vote_array << [65, 63, 64] + vote_array << [64, 65, 66, 63] + vote = CloneproofSSDVote.new(vote_array) + assert_equal 65, vote.result.winners[0] + assert_equal [[65, 64], [63, 66]], vote.results end + + def test_ssd_multiple_equivalent + vote_array = Array.new + vote_array << ['B', ['A', 'C'], 'D'] + vote_array << ['A', 'C'] + vote_array << [['E', 'D'], 'C'] + results = CloneproofSSDVote.new(vote_array).results + assert_equal 5, results.flatten.size + assert_equal [['A', 'C'], ['B', 'D'], ['E']], results + end + + def test_ssd_multiple_equivalent_2 + vote_array = Array.new + vote_array << ['B', ['A'], 'C'] + vote_array << ['B', ['C'], 'A'] + results = CloneproofSSDVote.new(vote_array).results + assert_equal 3, results.flatten.size + assert_equal [['B'], ['A', 'C']], results + end + + end