// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally // Copyright (C) 2022 Igalia, S.L. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-temporal.timezone description: Test for Temporal.TimeZone subclassing. features: [Temporal] ---*/ class CustomTimeZone extends Temporal.TimeZone { } const instance = new CustomTimeZone("UTC"); assert.sameValue(instance.toString(), "UTC"); assert.sameValue(Object.getPrototypeOf(instance), CustomTimeZone.prototype, "Instance of CustomTimeZone"); assert(instance instanceof CustomTimeZone, "Instance of CustomTimeZone"); assert(instance instanceof Temporal.TimeZone, "Instance of Temporal.TimeZone"); reportCompare(0, 0);