node/deps/v8/test/mjsunit/promise-perfrom-race-resolve-lookup.js
Michaël Zasso 2dcc3665ab
deps: update V8 to 7.6.303.28
PR-URL: https://github.com/nodejs/node/pull/28016
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Refael Ackermann (רפאל פלחי) <refack@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
2019-08-01 12:53:56 +02:00

29 lines
612 B
JavaScript

// 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);