#1 Write structural test

@@ -4,7 +4,7 @@
 var assert = require('assert');
 var RelativePlacement = require('../../relative-placement');
 
-describe('RelativePlacement', () => {
+describe('RelativePlacement global', () => {
     it('should provide RelativePlacement constructor', () => {
         assert.ok(RelativePlacement instanceof Function, 'provide constructor');
         assert.ok(RelativePlacement.prototype.addCandidate instanceof Function, 'provide "addCandidate" function in prototype');
@@ -71,15 +71,16 @@ describe('RelativePlacement', () => {
 
     describe('Add votes', () => {
         var election;
+        var candidates = ['A','B','C'];
 
         beforeEach(()=> {
             election = new RelativePlacement();
-            election.addCandidates(['A','B','C']);
+            election.addCandidates(candidates);
         });
 
         it('should add a vote to each candidates', () => {
-            var vote = ['A','B','C'];
-            election.addVote(['A','B','C']);
+            var vote = candidates;
+            election.addVote(vote);
             for(let i = 0; i < vote.length; i++){
                 let candidate = election.candidateList[vote[i]];
                 assert.equal(candidate.votes.length, 1, 'number of candidates vote');
@@ -125,5 +126,34 @@ describe('RelativePlacement', () => {
             assert.equal(election.votes.length, 0, 'no vote registered');
             assert.equal(election.candidateList['A'].votes.length, 0, 'no vote registered in candidate');
         });
+
+        it('should lock candidate after add the first vote', () => {
+            election.addVote(candidates);
+            assert.throws(()=>election.addCandidate('D'));
+        });
+    });
+
+    describe('Get result', () => {
+        /** @var RelativePlacement */
+        var election;
+        var candidates = ['A','B','C'];
+
+        beforeEach(()=> {
+            election = new RelativePlacement();
+            election.addCandidates(candidates);
+            election.addVote(candidates);
+        });
+
+        it('should return an array', () => {
+            assert.ok(election.getResult() instanceof Array);
+        });
+
+        it('should return only all candidates', () => {
+            var result = election.getResult();
+
+            assert.equal(result.length, candidates.length);
+            assert.ok(candidates.every(name => result.indexOf(name) != -1));
+            assert.ok(result.every(name => candidates.indexOf(name) != -1));
+        });
     });
 });
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