text: // Copyright 2009 the Sputnik authors.  All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  
  /**
   * @name: S11.13.2_A4.3_T2.7;
   * @section: 11.13.2, 11.5.3;
   * @assertion: The production x %= y is the same as x = x % y; 
   * @description: Type(x) is different from Type(y) and both types vary between String (primitive or object) and Null;
   */
  
  //CHECK#1
  x = "1";
  x %= null;
  if (isNaN(x) !== true) {
    $ERROR('#1: x = "1"; x %= null; x === Not-a-Number. Actual: ' + (x));
  }
  
  //CHECK#2
  x = null;
  x %= "1";
  if (x !== 0) {
    $ERROR('#2: x = null; x %= "1"; x === 0. Actual: ' + (x));
  }
  
  //CHECK#3
  x = new String("1");
  x %= null;
  if (isNaN(x) !== true) {
    $ERROR('#3: x = new String("1"); x %= null; x === Not-a-Number. Actual: ' + (x));
  }
  
  //CHECK#4
  x = null;
  x %= new String("1");
  if (x !== 0) {
    $ERROR('#4: x = null; x %= new String("1"); x === 0. Actual: ' + (x));
  }
  