text: /// Copyright (c) 2012 Ecma International.  All rights reserved. 
  /**
   * @path ch15/15.4/15.4.4/15.4.4.21/15.4.4.21-3-20.js
   * @description Array.prototype.reduce - value of 'length' is an object which has an own valueOf method
   */
  
  
  function testcase() {
  
          function callbackfn(prevVal, curVal, idx, obj) {
              return (curVal === 11 && idx === 1);
          }
  
          var obj = {
              1: 11,
              2: 9,
              length: {
                  valueOf: function () {
                      return 2;
                  }
              }
          };
  
          return Array.prototype.reduce.call(obj, callbackfn, 1) === true;
      }
  runTestCase(testcase);
  