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// |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.calendar
description: Test for Temporal.Calendar subclassing.
features: [Temporal]
---*/
class CustomCalendar extends Temporal.Calendar {
}
const instance = new CustomCalendar("iso8601");
assert.sameValue(instance.toString(), "iso8601");
assert.sameValue(Object.getPrototypeOf(instance), CustomCalendar.prototype, "Instance of CustomCalendar");
assert(instance instanceof CustomCalendar, "Instance of CustomCalendar");
assert(instance instanceof Temporal.Calendar, "Instance of Temporal.Calendar");
reportCompare(0, 0);
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