test262/test/built-ins/Object/defineProperty/8.12.9-9-b-i_2.js

// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 8.12.9-9-b-i_2
description: >
    Redefine a configurable data property to be an accessor property
    on a newly non-extensible object
---*/

    var o = {};
    Object.defineProperty(o, "foo", 
                          { value: "hello", 
                            configurable: true,
                            enumerable: true,
                            writable: true});
    Object.preventExtensions(o);
    Object.defineProperty(o, "foo", { get: function() { return 5;} });

    var fooDescrip = Object.getOwnPropertyDescriptor(o, "foo");

assert.sameValue(o.foo, 5, 'o.foo');
assert(fooDescrip.get!==undefined, 'fooDescrip.get!==undefined !== true');
assert.sameValue(fooDescrip.set, undefined, 'fooDescrip.set');
assert.sameValue(fooDescrip.value, undefined, 'fooDescrip.value');
assert.sameValue(fooDescrip.configurable, true, 'fooDescrip.configurable');
assert.sameValue(fooDescrip.enumerable, true, 'fooDescrip.enumerable');
assert.sameValue(fooDescrip.writable, undefined, 'fooDescrip.writable');