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


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

// |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.plaindate.prototype.tolocalestring
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.PlainDate(2000, 5, 2, "iso8601");
instance.toLocaleString();

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

reportCompare(0, 0);