The Tor Browser / file revision

 // Copyright 2009 the Sputnik authors.  All rights reserved.

 // This code is governed by the BSD license found in the LICENSE file.

 /**

  * Operator x + y uses [[Default Value]]

  *

  * @path ch11/11.6/11.6.1/S11.6.1_A2.2_T2.js

  * @description If Type(value) is Date object, evaluate ToPrimitive(value, String)

  */

 //CHECK#1

 var date = new Date();

 if (date + date !== date.toString() + date.toString()) {

   $ERROR('#1: var date = new Date(); date + date === date.toString() + date.toString(). Actual: ' + (date + date));  

 }

 //CHECK#2

 var date = new Date();

 if (date + 0 !== date.toString() + "0") {

   $ERROR('#2: var date = new Date(); date + 0 === date.toString() + "0". Actual: ' + (date + 0));  

 }

 //CHECK#3

 var date = new Date();

 if (date + true !== date.toString() + "true") {

   $ERROR('#3: var date = new Date(); date + true === date.toString() + "true". Actual: ' + (date + true));  

 }

 //CHECK#4

 var date = new Date();

 if (date + new Object() !== date.toString() + "[object Object]") {

   $ERROR('#4: var date = new Date(); date + new Object() === date.toString() + "[object Object]". Actual: ' + (date + new Object()));  

 }