Add bower_components as it contains the resources used by github pages.

bower_components/select2/tests/data/base-tests.js

@@ -0,0 +1,29 @@
+module('Data adapters - Base');
+
+var BaseData = require('select2/data/base');
+var $ = require('jquery');
+var Options = require('select2/options');
+
+var options = new Options({});
+
+test('current is required', function (assert) {
+  var data = new BaseData($('#qunit-fixture select'), options);
+
+  assert.throws(
+    function () {
+      data.current(function () {});
+    },
+    'current has no default implementation'
+  );
+});
+
+test('query is required', function (assert) {
+  var data = new BaseData($('#qunit-fixture select'), options);
+
+  assert.throws(
+    function () {
+      data.query({}, function () {});
+    },
+    'query has no default implementation'
+  );
+});