summaryrefslogtreecommitdiffstats
path: root/js/src/tests/test262/built-ins/Array/prototype/map/target-array-with-non-writable-property.js
blob: c8761fb5d88d37aa7367c1fea0905ed89adc388c (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
34
35
36
37
38
// Copyright (C) 2018 André Bargull. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-array.prototype.map
description: >
  Non-writable properties are overwritten by CreateDataPropertyOrThrow.
info: |
  22.1.3.16 Array.prototype.map ( callbackfn [ , thisArg ] )

  ...
  7. Repeat, while k < len
    ...
    c. If kPresent is true, then
      ...
      iii. Perform ? CreateDataPropertyOrThrow(A, Pk, mappedValue).
    ...
features: [Symbol.species]
includes: [propertyHelper.js]
---*/

var a = [1];
a.constructor = {};
a.constructor[Symbol.species] = function(len) {
    var q = new Array(0);
    Object.defineProperty(q, 0, {
        value: 0, writable: false, configurable: true, enumerable: false,
    });
    return q;
};

var r = a.map(function(){ return 2; });

verifyProperty(r, 0, {
    value: 2, writable: true, configurable: true, enumerable: true,
});

reportCompare(0, 0);