js/src/tests/test262/built-ins/Object/seal/object-seal-p-is-own-data-property-that-overrides-an-inherited-accessor-property.js

   1 // Copyright (c) 2012 Ecma International.  All rights reserved.
   2 // This code is governed by the BSD license found in the LICENSE file.
   3
   4 /*---
   5 esid: sec-setintegritylevel
   6 description: >
   7     Object.seal - 'P' is own data property that overrides an inherited
   8     accessor property
   9 includes: [propertyHelper.js]
  10 ---*/
  11
  12 var proto = {};
  13
  14 Object.defineProperty(proto, "foo", {
  15   get: function() {
  16     return 0;
  17   },
  18   configurable: true
  19 });
  20
  21 var ConstructFun = function() {};
  22 ConstructFun.prototype = proto;
  23
  24 var obj = new ConstructFun();
  25 Object.defineProperty(obj, "foo", {
  26   value: 10,
  27   configurable: true
  28 });
  29
  30 assert(Object.isExtensible(obj));
  31 Object.seal(obj);
  32
  33 verifyNotConfigurable(obj, "foo");
  34 assert.sameValue(obj.foo, 10);
  35
  36 reportCompare(0, 0);