text: /// Copyright (c) 2012 Ecma International.  All rights reserved. 
  /**
   * @path ch15/15.2/15.2.3/15.2.3.10/15.2.3.10-3-24.js
   * @description Object.preventExtensions - [[Extensible]]: false on a prototype doesn't prevent adding properties to an instance that inherits from that prototype
   */
  
  
  function testcase() {
          var proto = {};
          var preCheck = Object.isExtensible(proto);
          Object.preventExtensions(proto);
  
          var ConstructFun = function () { };
          ConstructFun.prototype = proto;
          var child = new ConstructFun();
  
          child.prop = 10;
  
          return preCheck && child.hasOwnProperty("prop");
      }
  runTestCase(testcase);
  