chrome/browser/resources/chromeos/chromevox/testing/common.js

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // Common testing utilities.
   6
   7 /**
   8  * Shortcut for document.getElementById.
   9  * @param {string} id of the element.
  10  * @return {HTMLElement} with the id.
  11  */
  12 function $(id) {
  13   return document.getElementById(id);
  14 }
  15
  16 /**
  17  * @constructor
  18  */
  19 var TestUtils = function() {};
  20
  21 /**
  22  * Extracts some inlined html encoded as a comment inside a function,
  23  * so you can use it like this:
  24  *
  25  * this.appendDoc(function() {/*!
  26  *     <p>Html goes here</p>
  27  * * /});
  28  *
  29  * @param {Function} commentEncodedHtml The html , embedded as a
  30  *     comment inside an anonymous function - see example, above.
  31  * @param {!Array=} opt_args Optional arguments to be substituted in the form
  32  *     $0, ... within the code block.
  33  * @return {string} The html text.
  34 */
  35 TestUtils.extractHtmlFromCommentEncodedString =
  36     function(commentEncodedHtml, opt_args) {
  37   var stringified = commentEncodedHtml.toString();
  38   if (opt_args) {
  39     for (var i = 0; i < opt_args.length; i++)
  40       stringified = stringified.replace('$' + i, opt_args[i]);
  41   }
  42   return stringified.replace(/^[^\/]+\/\*!?/, '').replace(/\*\/[^\/]+$/, '');
  43 };