js/src/tests/test262/built-ins/Array/fromAsync/sync-iterable-input-with-non-promise-thenable.js


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

// |reftest| async
// 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: Sync-iterable input with non-promise thenables works.
includes: [compareArray.js, asyncHelpers.js]
flags: [async]
features: [Array.fromAsync]
---*/

asyncTest(async function () {
  const expectedValue = {};
  const expected = [ expectedValue ];
  const inputThenable = {
    then (resolve, reject) {
      resolve(expectedValue);
    },
  };
  const input = [ inputThenable ].values();
  const output = await Array.fromAsync(input);
  assert.compareArray(output, expected);
});