mirror of https://github.com/tc39/test262.git
34 lines
959 B
JavaScript
34 lines
959 B
JavaScript
|
// Copyright (C) 2023 Igalia, S.L. All rights reserved.
|
|||
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|||
|
|
|
|||
|
|
/*---
|
|||
|
|
esid: sec-array.fromasync
|
|||
|
|
description: >
|
|||
|
|
Rejects the promise if setting the length fails on an instance of a custom
|
|||
|
|
this-value
|
|||
|
|
info: |
|
|||
|
|
3.j.ii.4.a. Perform ? Set(_A_, *"length"*, 𝔽(_k_), *true*).
|
|||
|
|
...
|
|||
|
|
3.k.viii. Perform ? Set(_A_, *"length"*, 𝔽(_len_), *true*)
|
|||
|
|
includes: [asyncHelpers.js]
|
|||
|
|
flags: [async]
|
|||
|
|
features: [Array.fromAsync]
|
|||
|
|
---*/
|
|||
|
|
|
|||
|
|
asyncTest(async function () {
|
|||
|
|
class MyArray {
|
|||
|
|
set length(v) {
|
|||
|
|
throw new Test262Error("setter of length property throws")
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
await assert.throwsAsync(Test262Error, () => Array.fromAsync.call(MyArray, [0, 1, 2]), "Promise rejected if setting length fails");
|
|||
|
|
|
|||
|
|
await assert.throwsAsync(Test262Error, () => Array.fromAsync.call(MyArray, {
|
|||
|
|
length: 3,
|
|||
|
|
0: 0,
|
|||
|
|
1: 1,
|
|||
|
|
2: 2
|
|||
|
|
}), "Promise rejected if setting length from array-like fails");
|
|||
|
|
});
|