subclass.js (829B)
1 // |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally 2 // Copyright (C) 2022 Igalia, S.L. All rights reserved. 3 // This code is governed by the BSD license found in the LICENSE file. 4 5 /*--- 6 esid: sec-temporal.plaindate 7 description: Test for Temporal.PlainDate subclassing. 8 includes: [temporalHelpers.js] 9 features: [Temporal] 10 ---*/ 11 12 class CustomPlainDate extends Temporal.PlainDate { 13 } 14 15 const instance = new CustomPlainDate(2000, 5, 2); 16 TemporalHelpers.assertPlainDate(instance, 2000, 5, "M05", 2); 17 assert.sameValue(Object.getPrototypeOf(instance), CustomPlainDate.prototype, "Instance of CustomPlainDate"); 18 assert(instance instanceof CustomPlainDate, "Instance of CustomPlainDate"); 19 assert(instance instanceof Temporal.PlainDate, "Instance of Temporal.PlainDate"); 20 21 reportCompare(0, 0);