The Tor Browser / file revision

 /*

  * Any copyright is dedicated to the Public Domain.

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

  */

 var BUGNUMBER = 795745;

 var summary =

   "Number.prototype.to* should throw a RangeError when passed a bad precision";

 print(BUGNUMBER + ": " + summary);

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

  * BEGIN TEST *

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

 function test(method, prec)

 {

   try

   {

     Number.prototype[method].call(0, prec);

     throw "should have thrown";

   }

   catch (e)

   {

     assertEq(e instanceof RangeError, true,

              "expected RangeError for " + method + " with precision " + prec +

              ", got " + e);

   }

 }

 test("toExponential", -32);

 test("toFixed", -32);

 test("toPrecision", -32);

 test("toExponential", 9999999);

 test("toFixed", 9999999);

 test("toPrecision", 9999999);

 test("toPrecision", 0);

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

 if (typeof reportCompare === "function")

   reportCompare(true, true);

 print("Tests complete");