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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>
49 lines
1.3 KiB
JavaScript
49 lines
1.3 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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Constructs an intrinsic Array if this-value is not a constructor, and length
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and element properties are set accordingly.
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info: |
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3.e. If IsConstructor(_C_) is *true*, then
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...
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f. Else,
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i. Let _A_ be ! ArrayCreate(0).
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...
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j. If _iteratorRecord_ is not *undefined*, then
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...
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k. Else,
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...
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iv. If IsConstructor(_C_) is *true*, then
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...
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v. Else,
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1. Let _A_ be ? ArrayCreate(_len_).
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includes: [compareArray.js, 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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const thisValue = {
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length: 4000,
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0: 32,
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1: 64,
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2: 128
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};
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let result = await Array.fromAsync.call(thisValue, [1, 2]);
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assert(Array.isArray(result), "result is an intrinsic Array");
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assert.compareArray(result, [1, 2], "result is not disrupted by properties of this-value");
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result = await Array.fromAsync.call(thisValue, {
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length: 2,
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0: 1,
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1: 2
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});
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assert(Array.isArray(result), "result is an intrinsic Array");
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assert.compareArray(result, [1, 2], "result is not disrupted by properties of this-value");
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});
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