The Tor Browser / file revision

 /*

  * Any copyright is dedicated to the Public Domain.

  * http://creativecommons.org/licenses/publicdomain/

  */

 //-----------------------------------------------------------------------------

 var BUGNUMBER = 657585;

 var summary =

   'Guard against infinite recursion when converting |this| to string for the ' +

   'String.prototype.* methods';

 print(BUGNUMBER + ": " + summary);

 /**************

  * BEGIN TEST *

  **************/

 try

 {

   var obj = {};

   obj.toString = String.prototype.charAt;

   "" + obj;

   throw new Error("should have thrown");

 }

 catch (e)

 {

   assertEq(e instanceof InternalError, true,

            "should have thrown InternalError for over-recursion, got: " + e);

 }

 /******************************************************************************/

 if (typeof reportCompare === "function")

   reportCompare(true, true);

 print("All tests passed!");