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// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-object.keys
description: >
Property names are returned in ascending chronological order of creation
that is unaffected by [[DefineOwnProperty]].
info: |
Object.keys ( O )
[...]
2. Let nameList be ? EnumerableOwnPropertyNames(obj, key).
3. Return CreateArrayFromList(nameList).
EnumerableOwnPropertyNames ( O, kind )
[...]
2. Let ownKeys be ? O.[[OwnPropertyKeys]]().
[...]
OrdinaryOwnPropertyKeys ( O )
[...]
3. For each own property key P of O that is a String but is not an array index,
in ascending chronological order of property creation, do
a. Add P as the last element of keys.
[...]
5. Return keys.
features: [arrow-function]
includes: [compareArray.js]
---*/
var fn = () => {};
fn.a = 1;
Object.defineProperty(fn, "length", {enumerable: true});
assert.compareArray(Object.keys(fn), ["length", "a"]);
reportCompare(0, 0);
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