From d28df2a4166aa83fd9a0eb1f5a0599b8fc1c9798 Mon Sep 17 00:00:00 2001
From: John Dong <jdong@mit.edu>
Date: Tue, 14 Aug 2007 23:49:20 +0000
Subject: [PATCH]  * Entire election aborts with InvalidVoteError when an
 invalid vote object is passed in.  * Add testcase for checking
 InvalidVoteError is properly raised

git-svn-id: svn://rubyforge.org/var/svn/rubyvote/trunk@31 1440c7f4-e209-0410-9a04-881b5eb134a8
---
 lib/rubyvote/election.rb | 13 ++++++++++++-
 test/election_test.rb    |  6 +++++-
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/lib/rubyvote/election.rb b/lib/rubyvote/election.rb
index ec30ab9..b9bb557 100644
--- a/lib/rubyvote/election.rb
+++ b/lib/rubyvote/election.rb
@@ -42,7 +42,11 @@ class ElectionVote
     if votes
       if votes.instance_of?( Array )
         votes.each do |vote|
-          self.tally_vote(vote) if self.verify_vote(vote)
+          if self.verify_vote(vote)
+            self.tally_vote(vote)
+          else
+            raise InvalidVoteError.new ("Invalid vote object", vote)
+          end
         end
       else
         raise ElectionError, "Votes must be in the form of an array.", caller
@@ -163,3 +167,10 @@ end
 class ElectionError < ArgumentError
 end
 
+class InvalidVoteError < ElectionError
+  attr_accessor :voteobj
+  def initialize(msg=nil, voteobj=nil)
+    super(msg)
+    @voteobj=voteobj
+  end
+end
diff --git a/test/election_test.rb b/test/election_test.rb
index 5b5664e..7675e58 100644
--- a/test/election_test.rb
+++ b/test/election_test.rb
@@ -16,7 +16,11 @@ class TestElectionVote < Test::Unit::TestCase
     assert_equal( 1, PluralityVote.new(vote_array).result.winners[0] )
   end
 
-
+  def test_invalid_voteobj
+    vote_array = [1,2,nil,1]
+    assert_raise(InvalidVoteError) { PluralityVote.new(vote_array).result.winners[0] }
+  end
+  
   def test_approval
     vote_array = Array.new
     10.times {vote_array << "AB".split("")}
-- 
2.39.5