JSTests/test262/test/built-ins/Symbol/species/subclassing.js

// Copyright 2015 Cubane Canada, Inc.  All rights reserved.
// See LICENSE for details.

/*---
info: |
 Symbol.species is retained on subclassing
author: Sam Mikes
description: Symbol.species is retained on subclassing
features: [Symbol.species]
---*/

class MyRegExp extends RegExp {};

assert.sameValue(MyRegExp[Symbol.species], MyRegExp);