Added tests for multiple tags and tokenizing

This adds tests to ensure that 3b8cd2e36990e695e4cb4b966c8658e7ca1574dc
will continue to work in the future.

tests/data/tokenizer-tests.js

@@ -25,7 +25,7 @@ test('triggers the select event', function (assert) {
 
   var container = new MockContainer();
   container.dropdown = container.selection = {};
-  
+
   var $container = $('<div></div>');
 
   var data = new TokenizedSelect($select, options);
@@ -168,4 +168,52 @@ test('createTag returning null does not cut the term', function (assert) {
   }, function () {
     assert.ok(true, 'The callback should have succeeded');
   });
+});
+
+test('works with multiple tokens given', function (assert) {
+  expect(4);
+
+  var SelectData = require('select2/data/select');
+  var Tokenizer = require('select2/data/tokenizer');
+  var Tags = require('select2/data/tags');
+
+  var Options = require('select2/options');
+  var Utils = require('select2/utils');
+
+  var $ = require('jquery');
+
+  var TokenizedSelect = Utils.Decorate(
+    Utils.Decorate(SelectData, Tags),
+    Tokenizer
+  );
+  var $select = $('#qunit-fixture .multiple');
+
+  var options = new Options({
+    tags: true,
+    tokenSeparators: [',']
+  });
+
+  var container = new MockContainer();
+  container.dropdown = container.selection = {};
+
+  var $container = $('<div></div>');
+
+  var data = new TokenizedSelect($select, options);
+  data.bind(container, $container);
+
+  data.on('select', function () {
+    assert.ok(true, 'The select event should be triggered');
+  });
+
+  data.query({
+    term: 'first,second,third'
+  }, function () {
+    assert.ok(true, 'The callback should have succeeded');
+  });
+
+  assert.equal(
+    $select.children('option').length,
+    3,
+    'The two new tags should have been created'
+  );
 });