src/v8/test/mjsunit/regress/regress-crbug-917076.js

// 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 speciesCounter = 0;

Object.defineProperty(Promise, Symbol.species, {
  value: function(...args) {
    speciesCounter++;
    return new Promise(...args);
  }
});

async function foo() { }

assertPromiseResult(Promise.all([foo()]), () => {
  assertEquals(3, speciesCounter);
});