v8/test/mjsunit/promise-perfrom-race-resolve-lookup.js

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

29 lines
612 B
JavaScript
Raw Normal View History

// 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
let count = 0;
class MyPromise extends Promise {
static get resolve() {
count++;
return super.resolve;
}
}
MyPromise.race([1, 2, 3, 4, 5]);
assertEquals(1, count);
%PerformMicrotaskCheckpoint();
assertEquals(1, count);
count = 0;
MyPromise.race([
Promise.resolve(1),
Promise.resolve(2),
Promise.reject(3)
]);
assertEquals(1, count);
%PerformMicrotaskCheckpoint();
assertEquals(1, count);