src/third_party/mozjs-45/js/src/tests/test262/ch11/11.9/11.9.2/S11.9.2_A6.2_T2.js

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

/**
 * If one expression is undefined or null and another is not, return false
 *
 * @path ch11/11.9/11.9.2/S11.9.2_A6.2_T2.js
 * @description y is null or undefined, x is not
 */

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

//CHECK#2
if ((Number.NaN != undefined) !== true) {
  $ERROR('#2: (Number.NaN != undefined) === true');
}

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

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

//CHECK#5
if ((false != null) !== true) {
  $ERROR('#5: (false != null) === true');
}

//CHECK#6
if ((0 != null) !== true) {
  $ERROR('#6: (0 != null) === true');
}

//CHECK#7
if (("null" != null) !== true) {
  $ERROR('#7: ("null" != null) === true');
}

//CHECK#8
if (({} != null) !== true) {
  $ERROR('#8: ({} != null) === true');
}