mirror of
https://github.com/tc39/test262.git
synced 2025-06-05 06:30:28 +02:00
d9ddf80479
This reverts commit b690cb67be9b487eb10156c03e2c00869e88cc9d, reversing changes made to 50dd431dffe5cf86e9064a652d6b01dbbe542cf0. This is necessary because the reverted changeset reduced coverage by an unknown extent.
52 lines
1.7 KiB
JavaScript
52 lines
1.7 KiB
JavaScript
// 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(resolve => resolve('a'));
|
|
let b = new Promise(resolve => resolve('b'));
|
|
let sequence = [1];
|
|
Promise.all([
|
|
a.then(() => {
|
|
sequence.push(3);
|
|
assert.sameValue(sequence.length, 3);
|
|
return checkSequence(sequence, 'Expected to be called first.');
|
|
}),
|
|
Promise.race([a, b]).then(() => {
|
|
sequence.push(5);
|
|
assert.sameValue(sequence.length, 5);
|
|
return checkSequence(sequence, 'Expected to be called third.');
|
|
}),
|
|
b.then(() => {
|
|
sequence.push(4);
|
|
assert.sameValue(sequence.length, 4);
|
|
return checkSequence(sequence, 'Expected to be called second.');
|
|
})
|
|
]).then(result => {
|
|
compareArray(result, [true, true, true]);
|
|
assert.sameValue(sequence.length, 5);
|
|
checkSequence(sequence)
|
|
}).then($DONE, $DONE);
|
|
sequence.push(2);
|