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

/**
 * If Type(x) as well as Type(y) is undefined or null, return true
 *
 * @path ch11/11.9/11.9.1/S11.9.1_A6.1.js
 * @description Checking all combinations
 */

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

//CHECK#2
if ((void 0 == undefined) !== true) {
  $ERROR('#2: (void 0 == undefined) === true');
}

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

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

//CHECK#5
if ((null == void 0) !== true) {
  $ERROR('#5: (null == void 0) === true');
}

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