mirror of https://github.com/tc39/test262.git
38 lines
962 B
JavaScript
38 lines
962 B
JavaScript
// Copyright (C) 2015 the V8 project authors. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
|
|
/*---
|
|
description: >
|
|
`Promise.race` invoked on a constructor value
|
|
es6id: 25.4.4.3
|
|
info: >
|
|
1. Let C be the this value.
|
|
[...]
|
|
6. Let promiseCapability be NewPromiseCapability(C).
|
|
[...]
|
|
10. Let iteratorRecord be Record {[[iterator]]: iterator, [[done]]: false}.
|
|
11. Let result be PerformPromiseRace(iteratorRecord, promiseCapability, C).
|
|
[...]
|
|
13. Return Completion(result).
|
|
features: [class]
|
|
---*/
|
|
|
|
var executor = null;
|
|
var callCount = 0;
|
|
|
|
class SubPromise extends Promise {
|
|
constructor(a) {
|
|
super(a);
|
|
executor = a;
|
|
callCount += 1;
|
|
}
|
|
}
|
|
|
|
var instance = Promise.race.call(SubPromise);
|
|
|
|
assert.sameValue(instance.constructor, SubPromise);
|
|
assert.sameValue(instance instanceof SubPromise, true);
|
|
|
|
assert.sameValue(callCount, 1);
|
|
assert.sameValue(typeof executor, 'function');
|