From: John Dong <jdong@mit.edu>
Date: Mon, 20 Aug 2007 16:03:05 +0000 (-0400)
Subject: Merge mako
X-Git-Url: https://projects.mako.cc/source/selectricity/commitdiff_plain/989ef14cbab025c2cbdeaba851b15574a13704ce?hp=58548f03d162cdb794b78aa272a7a3ebf1500f97

Merge mako
---

diff --git a/lib/rubyvote/condorcet.rb b/lib/rubyvote/condorcet.rb
index 7fda91b..d0210ef 100644
--- a/lib/rubyvote/condorcet.rb
+++ b/lib/rubyvote/condorcet.rb
@@ -33,8 +33,6 @@
 
 class CondorcetVote < ElectionVote
   
-  attr_accessor :results
-
   def initialize(votes=nil)
     unless defined?(@candidates)
       @candidates = Array.new
@@ -46,7 +44,6 @@ class CondorcetVote < ElectionVote
       end
     end
     super(votes)
-    @results = Array.new
   end
 
   def tally_vote(vote=nil)
@@ -86,53 +83,24 @@ class CondorcetVote < ElectionVote
     end
   end
 
-  def results
-    if @results.size < 2 && (not @candidates.empty?)
-      tabulate
-    end
-    @results
-  end
-
-  def result
-    find_only_winner unless @winner
-    @winner
-  end
-
   protected
 
   def verify_vote(vote=nil)
     vote.instance_of?( Array ) and
       vote == vote.uniq
   end
-
-  def tabulate
-    find_only_winner unless @winner
-    until @candidates.empty? 
-      aResult = resultFactory( self )
-      @results << aResult.winners
-      filter_out(aResult)
-    end
-  end
-
-  def find_only_winner
-    @winner = resultFactory( self )
-    @results << @winner.winners
-    filter_out(@winner)
-  end
-
 end
 
 class PureCondorcetVote < CondorcetVote
-  def resultFactory(init)
-    PureCondorcetResult.new(init)
+  def result
+    PureCondorcetResult.new(self)
   end
 end
 
 class CloneproofSSDVote < CondorcetVote
-  def resultFactory(init)
-    CloneproofSSDResult.new(init)
+  def result
+    CloneproofSSDResult.new(self)
   end
-
 end
 
 
@@ -170,8 +138,8 @@ class CondorcetResult < ElectionResult
           ties << [candidate, challenger] 
         end
       end
-    end
-     
+    end  
+    
     victors.each do |list|
       if victories.has_key?(list[0])
         victories[list[0]][list[1]] = list[2]       
@@ -183,6 +151,14 @@ class CondorcetResult < ElectionResult
     
     return victories, ties    
   end
+
+  def ranked_candidates
+    if not defined?(@ranked_candidates)
+      @ranked_candidates = build_ranked_candidates()
+    end
+
+    @ranked_candidates
+  end
         
   protected
   def defeats(candidates=nil, votes=nil)
@@ -203,6 +179,27 @@ class CondorcetResult < ElectionResult
 
     defeats
   end
+  
+  def build_ranked_candidates
+    # build a lis of ranked candidates by dropping the winner and
+    # cursing
+
+    ranked_candidates = []
+
+    resultobj = self.dup
+    candidates = self.election.candidates
+
+    until candidates.empty? 
+      ranked_candidates << resultobj.winners
+      
+      new_voteobj = resultobj.election.dup
+      candidates = new_voteobj.candidates
+      new_voteobj.candidates.delete_if {|x| resultobj.winners.include?(x)}
+      resultobj = new_voteobj.result
+    end
+
+    ranked_candidates
+  end
 
 end
 
diff --git a/lib/rubyvote/election.rb b/lib/rubyvote/election.rb
index 5a58243..3655a03 100644
--- a/lib/rubyvote/election.rb
+++ b/lib/rubyvote/election.rb
@@ -66,10 +66,6 @@ class ElectionVote
     self.verify_vote(vote)
   end
 
-  def filter_out(winner)
-    @candidates.delete_if {|x| winner.winners.include?(x)}
-  end
-
 end
 
 class PluralityVote < ElectionVote
@@ -118,6 +114,7 @@ end
 
 class ElectionResult
   attr_reader :winners
+  attr_reader :election
 
   def initialize(voteobj=nil)
     unless voteobj and voteobj.kind_of?( ElectionVote )
@@ -135,7 +132,7 @@ class ElectionResult
   def winner?
     @winners.length > 0 and not @winners[0].nil?
   end
-
+  
 end
 
 class PluralityResult < ElectionResult
diff --git a/test/unit/selectricityservice_test.rb b/test/unit/selectricityservice_test.rb
index 0596dc7..c0f73c0 100644
--- a/test/unit/selectricityservice_test.rb
+++ b/test/unit/selectricityservice_test.rb
@@ -13,16 +13,19 @@ class SelectricityServiceTest < Test::Unit::TestCase
     assert_instance_of Array, result
     assert_equal result.length, 0
   end
+
   def test_create_quickvote
     election = ElectionStruct.new :name => "TestVote", :description => "Test Vote", :candidate_names => ["Apple", "Orange", "Banana", "Pineapple"]
     assert_create_quickvote_succeeds election
   end
+
   def test_cast_quickvote
     test_create_quickvote
     election = invoke_delegated :vote, :get_quickvote, "TestVote"
     casted_vote = election.candidate_ids.sort_by {rand} #Shuffles
     assert_cast_quickvote_succeeds "TestVote", 42, [casted_vote]
   end
+
   def test_cast_nil_quickvote
     assert_cast_quickvote_fails nil, nil, nil
     assert_cast_quickvote_fails "foo", nil, nil
@@ -31,6 +34,7 @@ class SelectricityServiceTest < Test::Unit::TestCase
     assert_cast_quickvote_fails "TestVote",42,nil
     assert_cast_quickvote_fails "TestVote",nil,[]
   end
+
   def test_cast_malformed_votelist
     test_create_quickvote
     election = invoke_delegated :vote, :get_quickvote, "TestVote"
@@ -38,17 +42,21 @@ class SelectricityServiceTest < Test::Unit::TestCase
     assert_cast_quickvote_fails "TestVote", 11, [1,2]
     assert_cast_quickvote_fails "TestVote", 11, [election.candidate_ids[0],election.candidate_ids[0], election.candidate_ids[1], election.candidate_ids[1], election.candidate_ids[2]]
   end
+
   def test_get_nonexistent_quickvote
     assert_raises ArgumentError do
       qv = invoke_delegated :vote, :get_quickvote, "asdfasdfasdf"
     end
   end
+
   def test_get_voters_nonexistent_quickvote
     assert_raises(ArgumentError) {invoke_delegated :vote, :get_quickvote_votes, "asdfasdf"}
   end
+
   def test_get_candidate_map_nonexistent_quickvote
     assert_raises(ArgumentError) { invoke_delegated :vote, :get_quickvote_candidate_map, "asdfasdf"}
   end
+
   def test_cast_mass_quickvote
     test_create_quickvote
     election = invoke_delegated :vote, :get_quickvote, "TestVote"
@@ -57,43 +65,52 @@ class SelectricityServiceTest < Test::Unit::TestCase
       assert_cast_quickvote_succeeds "TestVote", t, [casted_vote]
     end
   end
+
   def test_cast_quickvote_nonexistent
     assert_cast_quickvote_fails "ASDFJOFASF", "me", [1,2,3]
   end
+
   def test_cast_quickvote_nonexistent_candidates
     test_create_quickvote
     election = invoke_delegated :vote, :get_quickvote, "TestVote"
     assert_cast_quickvote_fails "TestVote", 42, [123,342314,5342,1,1,2]
   end
+
   def test_create_mass_quickvote
     10.times do |t|
       election = ElectionStruct.new :name => "test#{t}", :description => "Test Vote", :candidate_names => ["Apple", "Orange", "Banana", "Pineapple"]
       assert_create_quickvote_succeeds election
     end
   end
+
   def test_create_quickvote_bad_name
     election = ElectionStruct.new :name => "invalid space", :description => "Test Vote", :candidate_names => ["Apple", "Orange", "Banana", "Pineapple"]
     assert_create_quickvote_fails election
   end
+
   def test_create_quickvote_nil
     election =  ElectionStruct.new
     assert_create_quickvote_fails election
   end
+
   def test_create_quickvote_name_nil
     election = ElectionStruct.new :name => "", :description => "Test Vote", :candidate_names => ["Apple", "Orange", "Banana", "Pineapple"]
     assert_create_quickvote_fails election
   end
+
   def test_create_quickvote_description_nil
     election = ElectionStruct.new :name => "foobar", :description => nil, :candidate_names => ["Apple", "Orange", "Banana", "Pineapple"]
     assert_create_quickvote_fails election
     
   end
+  
   def test_create_quickvote_description_whitespace
     election = ElectionStruct.new :name => "foobar", :description => "       ", :candidate_names => ["Apple", "Orange", "Banana", "Pineapple"]
     assert_create_quickvote_fails election
     election = ElectionStruct.new :name => "foobar", :description => "\t\t", :candidate_names => ["Apple", "Orange", "Banana", "Pineapple"]
     assert_create_quickvote_fails election
   end
+  
   def test_create_quickvote_candidates_nil
     election = ElectionStruct.new :name => "foobar", :description => "valid", :candidate_names => nil
     assert_create_quickvote_fails election
@@ -158,38 +175,46 @@ class SelectricityServiceTest < Test::Unit::TestCase
     assert_equal results.ssd_winners, [candidates["jdong"]]
   end
   private
+
   def assert_cast_quickvote_succeeds(shortname, id, vote)
     assert_nothing_raised do
-      old_votes = invoke_delegated :vote, :get_quickvote_votes, shortname
-      invoke_delegated :vote, :cast_quickvote, shortname, id, vote
-      new_votes = invoke_delegated :vote, :get_quickvote_votes, shortname
-      assert_equal old_votes.length, new_votes.length-1
-      assert_not_nil(reflection = new_votes.find_all { |v| v.voter_session_id == "XMLRPC:#{id}" })
-      assert_equal reflection.length, 1
-      assert_equal reflection[0].vote, vote[0]
+      old_votes = invoke_delegated(:vote, :get_quickvote_votes, shortname)
+      invoke_delegated(:vote, :cast_quickvote, shortname, id, vote)
+
+      new_votes = invoke_delegated(:vote, :get_quickvote_votes, shortname)
+      assert_equal(old_votes.length, new_votes.length - 1)
+
+      reflection = new_votes.find_all { |v| v.voter_session_id == "XMLRPC:#{id}" }
+      assert_not_nil(reflection)
+      assert_equal(reflection.length, 1)
+      assert_equal(reflection[0].vote, vote[0])
     end
   end
+
   def assert_cast_quickvote_fails(shortname, id, vote)
-    assert_raise Test::Unit::AssertionFailedError do 
+    assert_raise Test::Unit::AssertionFailedError do
       assert_cast_quickvote_succeeds(shortname, id, vote)
-    end
+     end
   end
+
   def assert_create_quickvote_succeeds(election)
-    # Checks if a created quickvote is identical when retrieved
+    # checks if a created quickvote is identical when retrieved
     assert_nothing_raised do
-      old_len=invoke_delegated(:vote,:list_quickvotes).length
-      result = invoke_delegated :vote, :create_quickvote, election
-      assert_equal result, ""
-      reflection = invoke_delegated :vote, :get_quickvote, election.name
-      assert_equal election.description, reflection.description
-      assert_equal 0, election.name.casecmp(reflection.name)
-      assert_equal election.candidate_names, reflection.candidate_names
-      assert_equal(invoke_delegated(:vote,:list_quickvotes).length, old_len+1)
+      old_len = invoke_delegated(:vote, :list_quickvotes).length
+      result = invoke_delegated(:vote, :create_quickvote, election)
+      assert_equal(result, "")
+
+      reflection = invoke_delegated(:vote, :get_quickvote, election.name)
+      assert_equal(election.description, reflection.description)
+      assert_equal(0, election.name.casecmp(reflection.name))
+      assert_equal(election.candidate_names, reflection.candidate_names)
+      assert_equal(invoke_delegated(:vote, :list_quickvotes).length, old_len+1)
     end
   end
+  
   def assert_create_quickvote_fails(election)
     assert_raise Test::Unit::AssertionFailedError do
-      assert_create_quickvote_succeeds election
+      assert_create_quickvote_succeeds(election)
     end
   end
 end