#filter_out and PureCondorcet weren't getting along well for sparse elections

[rubyvote] / test / condorcet_test.rb

diff --git a/test/condorcet_test.rb b/test/condorcet_test.rb
index b0df86501ab237c6eca6f0502509bd33b157a1d6..f0dd1cc016d1ec97faec7f81d856b82dc83721d5 100644 (file)
--- a/test/condorcet_test.rb
+++ b/test/condorcet_test.rb
@@ -59,4 +59,52 @@ class TestCondorcetVote < Test::Unit::TestCase
     assert_equal [['B'], ['C'], ['D'], ['A']], 
                  CloneproofSSDVote.new(vote_array).result.get_full_results
   end
     assert_equal [['B'], ['C'], ['D'], ['A']], 
                  CloneproofSSDVote.new(vote_array).result.get_full_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("")}
+
+    result = CloneproofSSDVote.new(vote_array).result
+    assert_equal "B", result.winners[0]
+    assert_equal [['B'], ['C'], ['D'], ['A']], result.get_full_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("")}
+
+    result = CloneproofSSDVote.new(vote_array).result
+    assert_equal "B", result.winners[0]
+    assert_equal [['B'], ['C'], ['D'], ['A']], result.get_full_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
+    result = CloneproofSSDVote.new([[78]]).result
+    assert_equal 78, result.winners[0]
+    assert_equal [[78]], result.get_full_results
+  end
+
+  def test_ssd_sparse
+    vote_array = Array.new
+    vote_array << ['B', 'D']
+    vote_array << ['A', 'C']
+    vote_array << ['E', 'C']
+    result = CloneproofSSDVote.new(vote_array).result
+    assert_equal 5, result.get_full_results.flatten.size
+  end
+

 end
 end