// |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: > Closes a sync iterator if setting an element fails on an instance of a custom this-value info: | 3.j.ii.8. Let _defineStatus_ be CreateDataPropertyOrThrow(_A_, _Pk_, _mappedValue_). 9. If _defineStatus_ is an abrupt completion, return ? AsyncIteratorClose(_iteratorRecord_, _defineStatus_). includes: [asyncHelpers.js] flags: [async] features: [Array.fromAsync] ---*/ asyncTest(async function () { function MyArray() { Object.defineProperty(this, 0, { enumerable: true, writable: true, configurable: false, value: 0 }); } let closed = false; const iterator = { next() { return { value: 1, done: false }; }, return() { closed = true; return { done: true }; }, [Symbol.iterator]() { return this; } } await assert.throwsAsync(TypeError, () => Array.fromAsync.call(MyArray, iterator), "Promise rejected if defining element fails"); assert(closed, "element define failure should close iterator"); });