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 returns ToNumber(x) / ToNumber(y)

  *

  * @path ch11/11.5/11.5.2/S11.5.2_A3_T2.8.js

  * @description Type(x) is different from Type(y) and both types vary between Boolean (primitive or object) and Undefined

  */

 //CHECK#1

 if (isNaN(true / undefined) !== true) {

   $ERROR('#1: true / undefined === Not-a-Number. Actual: ' + (true / undefined));

 }

 //CHECK#2

 if (isNaN(undefined / true) !== true) {

   $ERROR('#2: undefined / true === Not-a-Number. Actual: ' + (undefined / true));

 }

 //CHECK#3

 if (isNaN(new Boolean(true) / undefined) !== true) {

   $ERROR('#3: new Boolean(true) / undefined === Not-a-Number. Actual: ' + (new Boolean(true) / undefined));

 }

 //CHECK#4

 if (isNaN(undefined / new Boolean(true)) !== true) {

   $ERROR('#4: undefined / new Boolean(true) === Not-a-Number. Actual: ' + (undefined / new Boolean(true)));

 }