text: /// Copyright (c) 2012 Ecma International.  All rights reserved. 
  /**
   * @path ch15/15.4/15.4.4/15.4.4.19/15.4.4.19-3-20.js
   * @description Array.prototype.map - value of 'length' is an Object which has an own valueOf method
   */
  
  
  function testcase() {
          function callbackfn(val, idx, obj) {
              return val < 10;
          }
  
          var obj = {
              0: 11,
              1: 9,
  
              length: {
                  valueOf: function () {
                      return 2;
                  }
              }
          };
  
          var newArr = Array.prototype.map.call(obj, callbackfn);
  
          return newArr.length === 2;
      }
  runTestCase(testcase);
  