Add Array#map non-configurable property test

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Alexey Shvayka 2020-02-16 20:54:32 +02:00 committed by Rick Waldron
parent ac1c1b23c6
commit 1f7a0be6f5
1 changed files with 41 additions and 0 deletions

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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-array.prototype.map
description: >
TypeError is thrown if CreateDataProperty fails.
(result object's "0" is non-configurable)
info: |
Array.prototype.map ( callbackfn [ , thisArg ] )
[...]
6. Repeat, while k < len
[...]
c. If kPresent is true, then
[...]
iii. Perform ? CreateDataPropertyOrThrow(A, Pk, mappedValue).
[...]
CreateDataPropertyOrThrow ( O, P, V )
[...]
3. Let success be ? CreateDataProperty(O, P, V).
4. If success is false, throw a TypeError exception.
features: [Symbol.species]
---*/
var A = function(_length) {
Object.defineProperty(this, "0", {
set: function(_value) {},
configurable: false,
});
};
var arr = [1];
arr.constructor = {};
arr.constructor[Symbol.species] = A;
assert.throws(TypeError, function() {
arr.map(function() {});
});