text: // Copyright (c) 2012 Ecma International.  All rights reserved.
  // Ecma International makes this code available under the terms and conditions set
  // forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
  // "Use Terms").   Any redistribution of this code must retain the above
  // copyright and this notice and otherwise comply with the Use Terms.
  
  /*---
  es5id: 15.4.4.21-9-b-12
  description: >
      Array.prototype.reduce - deleting own property with prototype
      property in step 8 causes prototype index property to be visited
      on an Array-like object
  includes: [runTestCase.js]
  ---*/
  
  function testcase() {
  
          var testResult = false;
  
          function callbackfn(accum, val, idx, obj) {
              if (idx === 1 && val === 1) {
                  testResult = true;
              }
          }
  
          var obj = { 0: 0, 1: 111, 4: 10, length: 10 };
  
          Object.defineProperty(obj, "0", {
              get: function () {
                  delete obj[1];
                  return 0;
              },
              configurable: true
          });
  
          try {
              Object.prototype[1] = 1;
              Array.prototype.reduce.call(obj, callbackfn);
              return testResult;
          } finally {
              delete Object.prototype[1];
          }
      }
  runTestCase(testcase);
  