// Copyright (C) 2019 Leo Balter. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- description: > Error thrown when accesing the instance's `then` method (closing iterator) esid: sec-promise.allsettled info: | 6. Let result be PerformPromiseAllSettled(iteratorRecord, C, promiseCapability). 7. If result is an abrupt completion, then a. If iteratorRecord.[[Done]] is false, set result to IteratorClose(iteratorRecord, result). b. IfAbruptRejectPromise(result, promiseCapability). Runtime Semantics: PerformPromiseAllSettled z. Perform ? Invoke(nextPromise, "then", « resolveElement, rejectElement »). features: [Promise.allSettled, Symbol.iterator] ---*/ var promise = new Promise(function() {}); var returnCount = 0; var iter = {}; iter[Symbol.iterator] = function() { return { next() { return { done: false, value: promise }; }, return() { returnCount += 1; return {}; } }; }; Object.defineProperty(promise, 'then', { get() { throw new Test262Error(); } }); Promise.allSettled(iter); assert.sameValue(returnCount, 1); reportCompare(0, 0);