text: // Copyright 2009 the Sputnik authors.  All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  
  /**
   * @name: S11.9.1_A6.2_T2;
   * @section: 11.9.1, 11.9.3;
  * @assertion: If one expression is undefined or null and another is not, return false;
   * @description: y is null or undefined, x is not;   
  */
  
  //CHECK#1
  if ((false == undefined) !== false) {
    $ERROR('#1: (false == undefined) === false');
  }
  
  //CHECK#2
  if ((Number.NaN == undefined) !== false) {
    $ERROR('#2: (Number.NaN == undefined) === false');
  }
  
  //CHECK#3
  if (("undefined" == undefined) !== false) {
    $ERROR('#3: ("undefined" == undefined) === false');
  }
  
  //CHECK#4
  if (({} == undefined) !== false) {
    $ERROR('#4: ({} == undefined) === false');
  }
  
  //CHECK#5
  if ((false == null) !== false) {
    $ERROR('#5: (false == null) === false');
  }
  
  //CHECK#6
  if ((0 == null) !== false) {
    $ERROR('#6: (0 == null) === false');
  }
  
  //CHECK#7
  if (("null" == null) !== false) {
    $ERROR('#7: ("null" == null) === false');
  }
  
  //CHECK#8
  if (({} == null) !== false) {
    $ERROR('#8: ({} == null) === false');
  }
  