text: // Copyright 2009 the Sputnik authors.  All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  
  /*---
  info: >
      Return false, if x and y are both true or both false; otherwise, return
      true
  es5id: 11.9.2_A3.1
  description: x and y are boolean primitives
  ---*/
  
  //CHECK#1
  if ((true != true) !== false) {
    $ERROR('#1: (true != true) === false');
  }
  
  //CHECK#2
  if ((false != false) !== false) {
    $ERROR('#2: (false != false) === false');
  }
  
  //CHECK#3
  if ((true != false) !== true) {
    $ERROR('#3: (true != false) === true');
  }
  
  //CHECK#4
  if ((false != true) !== true) {
    $ERROR('#4: (false != true) === true');
  }
  