blob: d52566265793f811ab0b71cad87f2b152dcaaa45 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
/*
* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/licenses/publicdomain/
*/
var gTestfile = 'ownkeys-trap-duplicates.js';
var BUGNUMBER = 1293995;
var summary =
"Scripted proxies' [[OwnPropertyKeys]] should not throw if the trap " +
"implementation returns duplicate properties and the object is " +
"non-extensible or has non-configurable properties." +
"Revised (bug 1389752): Throw TypeError for duplicate properties.";
print(BUGNUMBER + ": " + summary);
/**************
* BEGIN TEST *
**************/
var target = Object.preventExtensions({ a: 1 });
var proxy = new Proxy(target, { ownKeys(t) { return ["a", "a"]; } });
assertThrowsInstanceOf(() => Object.getOwnPropertyNames(proxy), TypeError);
target = Object.freeze({ a: 1 });
proxy = new Proxy(target, { ownKeys(t) { return ["a", "a"]; } });
assertThrowsInstanceOf(() => Object.getOwnPropertyNames(proxy), TypeError);
/******************************************************************************/
if (typeof reportCompare === "function")
reportCompare(true, true);
print("Tests complete");
|
