test/built-ins/Reflect/getOwnPropertyDescriptor/undefined-own-property.js


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// Copyright (C) 2015 Leonardo Balter. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 26.1.7
description: >
  Return undefined for an non existing own property.
info: |
  26.1.7 Reflect.getOwnPropertyDescriptor ( target, propertyKey )

  ...
  4. Let desc be target.[[GetOwnProperty]](key).
  5. ReturnIfAbrupt(desc).
  6. Return FromPropertyDescriptor(desc).

  6.2.4.4 FromPropertyDescriptor ( Desc )

  1. If Desc is undefined, return undefined.
---*/

var o = Object.create({
  p: 1
});

var result = Reflect.getOwnPropertyDescriptor(o, 'p');
assert.sameValue(result, undefined);