js/src/tests/test262/built-ins/Temporal/PlainYearMonth/prototype/toString/builtin-calendar-no-observable-calls.js


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// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
// Copyright (C) 2023 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-temporal.plainyearmonth.prototype.tostring
description: >
  Calling the method on an instance constructed with a builtin calendar causes
  no observable lookups or calls to calendar methods.
includes: [temporalHelpers.js]
features: [Temporal]
---*/

const idOriginal = Object.getOwnPropertyDescriptor(Temporal.Calendar.prototype, "id");
Object.defineProperty(Temporal.Calendar.prototype, "id", {
  configurable: true,
  enumerable: false,
  get() {
    TemporalHelpers.assertUnreachable("id should not be looked up");
  },
});

const instance = new Temporal.PlainYearMonth(2000, 5, "iso8601", 1);
instance.toString();

Object.defineProperty(Temporal.Calendar.prototype, "id", idOriginal);

reportCompare(0, 0);