// |reftest| async // Copyright (C) 2020 Rick Waldron. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-promise.race description: Resolution ticks are set in a predictable sequence info: | PerformPromiseRace Repeat, Let next be IteratorStep(iteratorRecord). If next is an abrupt completion, set iteratorRecord.[[Done]] to true. ReturnIfAbrupt(next). If next is false, then Set iteratorRecord.[[Done]] to true. Return resultCapability.[[Promise]]. Let nextValue be IteratorValue(next). If nextValue is an abrupt completion, set iteratorRecord.[[Done]] to true. ReturnIfAbrupt(nextValue). Let nextPromise be ? Call(promiseResolve, constructor, « nextValue »). Perform ? Invoke(nextPromise, "then", « resultCapability.[[Resolve]], resultCapability.[[Reject]] »). flags: [async] includes: [compareArray.js,promiseHelper.js] ---*/ let a = new Promise((_, reject) => reject('a')); let b = new Promise((_, reject) => reject('b')); let sequence = [1]; Promise.all([ a.catch(() => { sequence.push(3); assert.sameValue(sequence.length, 3); return checkSequence(sequence, 'Expected to be called first.'); }), Promise.race([a, b]).catch(() => { sequence.push(5); assert.sameValue(sequence.length, 5); return checkSequence(sequence, 'Expected to be called third.'); }), b.catch(() => { sequence.push(4); assert.sameValue(sequence.length, 4); return checkSequence(sequence, 'Expected to be called second.'); }) ]).then(result => { assert.compareArray(result, [true, true, true]); assert.sameValue(sequence.length, 5); checkSequence(sequence); }).then($DONE, $DONE); sequence.push(2);