Merge pull request #12648 from ZDroid/index.html-only

Replace wildcard with file name

Gruntfile.js

@@ -262,7 +262,7 @@ module.exports = function (grunt) {
       options: {
         inject: 'js/tests/unit/phantom.js'
       },
-      files: 'js/tests/*.html'
+      files: 'js/tests/index.html'
     },
 
     connect: {