src/third_party/mozjs-45/js/src/tests/test262/ch11/11.9/11.9.5/S11.9.5_A3.js

// Copyright 2009 the Sputnik authors.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/**
 * Type(x) and Type(y) are Boolean-s.
 * Return false, if x and y are both true or both false; otherwise, return true
 *
 * @path ch11/11.9/11.9.5/S11.9.5_A3.js
 * @description x and y are primitive booleans
 */

//CHECK#1
if (true !== true) {
  $ERROR('#1: true === true');
}

//CHECK#2
if (false !== false) {
  $ERROR('#2: false === false');
}

//CHECK#3
if (!(true !== false)) {
  $ERROR('#3: true !== false');
}

//CHECK#4
if (!(false !== true)) {
  $ERROR('#4: false !== true');
}