mirror of https://github.com/tc39/test262.git
29 lines
676 B
JavaScript
29 lines
676 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: >
|
|
Non-iterable input with thenables awaits each input once with mapping callback
|
|
includes: [asyncHelpers.js]
|
|
flags: [async]
|
|
features: [Array.fromAsync]
|
|
---*/
|
|
|
|
asyncTest(async function () {
|
|
const expectedValue = {};
|
|
let awaitCounter = 0;
|
|
const inputThenable = {
|
|
then (resolve, reject) {
|
|
awaitCounter++;
|
|
resolve(expectedValue);
|
|
},
|
|
};
|
|
const input = {
|
|
length: 1,
|
|
0: inputThenable,
|
|
};
|
|
await Array.fromAsync(input, v => v);
|
|
assert.sameValue(awaitCounter, 1);
|
|
});
|