// Copyright (C) 2016 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- description: > Error retrieving the constructor's `resolve` method (iterator closing) esid: sec-promise.race es6id: 25.4.4.3 info: | 11. Let result be PerformPromiseRace(iteratorRecord, C, promiseCapability). 12. If result is an abrupt completion, a. If iteratorRecord.[[done]] is false, let result be IteratorClose(iterator, result). b. IfAbruptRejectPromise(result, promiseCapability). [...] 25.4.4.3.1 Runtime Semantics: PerformPromiseRace 1. Repeat [...] h. Let nextPromise be Invoke(C, "resolve", «nextValue»). i. ReturnIfAbrupt(nextPromise). features: [Symbol.iterator] ---*/ var iter = {}; var returnCount = 0; iter[Symbol.iterator] = function() { return { next: function() { return { done: false }; }, return: function() { returnCount += 1; return {}; } }; }; Object.defineProperty(Promise, 'resolve', { get: function() { throw new Test262Error(); } }); Promise.race(iter); assert.sameValue(returnCount, 1);