JSTests/test262/test/built-ins/Temporal/Calendar/prototype/dateAdd/argument-propertybag-calendar-leap-second.js

// 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.prototype.dateadd
description: Leap second is a valid ISO string for a calendar in a property bag
includes: [temporalHelpers.js]
features: [Temporal]
---*/

const instance = new Temporal.Calendar("iso8601");

const calendar = "2016-12-31T23:59:60";

let arg = { year: 1976, monthCode: "M11", day: 18, calendar };
const result1 = instance.dateAdd(arg, new Temporal.Duration());
TemporalHelpers.assertPlainDate(
  result1,
  1976, 11, "M11", 18,
  "leap second is a valid ISO string for calendar"
);

arg = { year: 1976, monthCode: "M11", day: 18, calendar: { calendar } };
const result2 = instance.dateAdd(arg, new Temporal.Duration());
TemporalHelpers.assertPlainDate(
  result2,
  1976, 11, "M11", 18,
  "leap second is a valid ISO string for calendar (nested property)"
);