test262/test/built-ins/Object/defineProperty/15.2.3.6-4-2.js

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

/*---
info: >
    Step 4 of defineProperty calls the [[DefineOwnProperty]] internal method
    of O to define the property. For newly defined data properties, attributes
    missing from desc should have values set to the defaults from 8.6.1.
es5id: 15.2.3.6-4-2
description: >
    Object.defineProperty sets missing attributes to their default
    values (data properties)(8.12.9 step 4.a.i)
---*/

  var o = {};

  var desc = { value: 1 };
  Object.defineProperty(o, "foo", desc);

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

assert.sameValue(propDesc.value, 1, 'propDesc.value');                    // this is the value that was set
assert.sameValue(propDesc.writable, false, 'propDesc.writable');          // false by default
assert.sameValue(propDesc.enumerable, false, 'propDesc.enumerable');      // false by default
assert.sameValue(propDesc.configurable, false, 'propDesc.configurable');  // false by default