Fix problem with a [nil] result being taken as having a winner; add testcases

[rubyvote] / test / condorcet_test.rb

diff --git a/test/condorcet_test.rb b/test/condorcet_test.rb
index 67d544e4f51d41e7136623a72c86d47c88d45fb4..b2d5dc46ad9864d4787c78596551aae1cfac2ab9 100644 (file)
--- a/test/condorcet_test.rb
+++ b/test/condorcet_test.rb
@@ -5,6 +5,11 @@ require 'rubyvote/election'
 require 'rubyvote/condorcet'
 
 class TestCondorcetVote < Test::Unit::TestCase
+  def test_condorcet_empty
+    vote_array =  [[]]
+    assert_nil PureCondorcetVote.new(vote_array).result.winners[0]
+    assert_equal(false, PureCondorcetVote.new(vote_array).result.winner?)
+  end
 
   def test_condorcet
     vote_array = Array.new
@@ -12,9 +17,27 @@ class TestCondorcetVote < Test::Unit::TestCase
     3.times {vote_array << "CBA".split("")}
     2.times {vote_array << "BAC".split("")}
 
-    assert_equal ["B"], PureCondorcetVote.new(vote_array).result.winners[0]
+    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_empty
+    vote_array = [[]]
+    assert_nil  CloneproofSSDVote.new(vote_array).result.winners[0]
+    assert_equal(false, CloneproofSSDVote.new(vote_array).result.winner?)
+  end
+  
   def test_ssd
     vote_array = Array.new
     5.times {vote_array << "ACBED".split("")}
@@ -116,4 +139,24 @@ class TestCondorcetVote < Test::Unit::TestCase
     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