1// Copyright JS Foundation and other contributors, http://js.foundation
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15assert (JSON.stringify (Object.getOwnPropertyNames("hello")) === '["0","1","2","3","4","length"]');
16
17var n = Object.assign(42, {a: "str"});
18assert (n instanceof Number);
19assert (n.valueOf() === 42);
20assert (n.a === "str");
21
22assert (JSON.stringify (Object.getOwnPropertySymbols("hello")) === '[]');
23
24assert (JSON.stringify (Object.keys("str")) === '["0","1","2"]');
25
26var d = Object.getOwnPropertyDescriptor("hello", '1');
27assert (d.value === "e");
28assert (d.writable === false);
29assert (d.enumerable === true);
30assert (d.configurable === false);
31
32assert (Object.seal(42) === 42);
33assert (Object.seal("a") === "a");
34assert (Object.seal(undefined) === undefined);
35assert (Object.seal() === undefined);
36
37assert (Object.isSealed(42) === true);
38assert (Object.isSealed("a") === true);
39assert (Object.isSealed(undefined) === true);
40assert (Object.isSealed() === true);
41
42assert (Object.freeze(42) === 42);
43assert (Object.freeze("a") === "a");
44assert (Object.freeze(undefined) === undefined);
45assert (Object.freeze() === undefined);
46
47assert (Object.isFrozen(42) === true);
48assert (Object.isFrozen("a") === true);
49assert (Object.isFrozen(undefined) === true);
50assert (Object.isFrozen() === true);
51
52assert (Object.preventExtensions(42) === 42);
53assert (Object.preventExtensions("a") === "a");
54assert (Object.preventExtensions(undefined) === undefined);
55assert (Object.preventExtensions() === undefined);
56
57assert (Object.isExtensible(42) === false);
58assert (Object.isExtensible("a") === false);
59assert (Object.isExtensible(undefined) === false);
60assert (Object.isExtensible() === false);
61