mirror of https://github.com/tc39/test262.git
33 lines
868 B
JavaScript
33 lines
868 B
JavaScript
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// 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: Non-iterable input with thenable result with async mapped awaits each callback result once.
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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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let awaitCounter = 0;
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const input = {
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length: 3,
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0: 0,
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1: Promise.resolve(1),
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2: Promise.resolve(2),
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3: Promise.resolve(3), // This is ignored because the length is 3.
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};
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await Array.fromAsync(input, async v => {
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return {
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// This “then” method should occur three times:
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// one for each value from the input.
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then (resolve, reject) {
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awaitCounter ++;
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resolve(v);
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},
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};
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});
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assert.sameValue(awaitCounter, 3);
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});
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