text: // Copyright 2009 the Sputnik authors.  All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  
  /**
   * String.prototype.substring (start, end)
   *
   * @path ch15/15.5/15.5.4/15.5.4.15/S15.5.4.15_A1_T12.js
   * @description Arguments are objects, and instance is string.
   * First object have overrided valueOf function and toString function, that return exception.
   * Second object have overrided valueOf function, that return exception
   */
  
  var __obj = {valueOf:function(){return {};}, toString:function(){throw "instart";}};
  var __obj2 = {valueOf:function(){throw "inend";}};
  var __str = new String("ABB\u0041BABAB");
  
  //////////////////////////////////////////////////////////////////////////////
  //CHECK#1
  with(__str){
      try {
        var x = substring(__obj, __obj2);
        $FAIL('#1: "var x = substring(__obj,__obj2)" lead to throw exception');
      } catch (e) {
        if (e!=="instart") {
          $ERROR('#1.1: Exception ==="instart". Actual: '+e);
        }
      }
  }
  //
  //////////////////////////////////////////////////////////////////////////////
  
  