|  | // Copyright 2019 the V8 project authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style license that can be | 
|  | // found in the LICENSE file. | 
|  | // | 
|  | // Flags: --allow-natives-syntax --harmony-promise-all-settled | 
|  |  | 
|  | let count = 0; | 
|  | class MyPromise extends Promise { | 
|  | static get resolve() { | 
|  | count++; | 
|  | return super.resolve; | 
|  | } | 
|  | } | 
|  |  | 
|  | MyPromise.allSettled([1, 2, 3, 4, 5]); | 
|  | assertEquals(1, count); | 
|  | %PerformMicrotaskCheckpoint(); | 
|  | assertEquals(1, count); | 
|  |  | 
|  | count = 0; | 
|  | MyPromise.allSettled([ | 
|  | Promise.resolve(1), | 
|  | Promise.resolve(2), | 
|  | Promise.reject(3) | 
|  | ]); | 
|  | assertEquals(1, count); | 
|  | %PerformMicrotaskCheckpoint(); | 
|  | assertEquals(1, count); |