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92500bfffb
This contains a few more tests for Array.fromAsync, in addition to what has already been merged and what is under review at #3791. This covers the following items from the testing plan at #3725: - Success cases - Creates promise - Create new array/arraylike in promise (with length = length property) - Input - Invalid input values - nonconforming object (arraylike without length, missing keys) - Covered by polyfill tests - Result promise rejects if length access fails (non-iterable input) - Unaffected by globalThis.Symbol mutation (non-iterable) - this-value - this-value is a constructor - this-value is not a constructor - If this is a constructor, and items doesn't have a Symbol.iterator, returns a new instance of this - Iterator closed when property creation on this fails - Returned promise rejects when ^ - Other tests - Error is thrown for all CreateDataProperty fails - Non-writable properties are overwritten by CreateDataProperty - Input with missing values Co-authored-by: Ms2ger <Ms2ger@igalia.com>
44 lines
1.2 KiB
JavaScript
44 lines
1.2 KiB
JavaScript
// Copyright (C) 2023 Igalia, S.L. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-array.fromasync
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description: >
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Closes an async iterator if setting an element fails on an instance of a
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custom this-value
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info: |
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3.j.ii.8. Let _defineStatus_ be CreateDataPropertyOrThrow(_A_, _Pk_, _mappedValue_).
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9. If _defineStatus_ is an abrupt completion, return ? AsyncIteratorClose(_iteratorRecord_, _defineStatus_).
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includes: [asyncHelpers.js]
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flags: [async]
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features: [Array.fromAsync]
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---*/
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asyncTest(async function () {
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function MyArray() {
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Object.defineProperty(this, 0, {
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enumerable: true,
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writable: true,
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configurable: false,
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value: 0
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});
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}
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let closed = false;
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const iterator = {
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next() {
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return Promise.resolve({ value: 1, done: false });
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},
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return() {
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closed = true;
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return Promise.resolve({ done: true });
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},
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[Symbol.asyncIterator]() {
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return this;
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}
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}
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await assert.throwsAsync(TypeError, () => Array.fromAsync.call(MyArray, iterator), "Promise rejected if defining element fails");
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assert(closed, "element define failure should close iterator");
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});
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