JSTests/test262/test/built-ins/Temporal/Calendar/prototype/dateAdd/balance-smaller-units.js

// Copyright (C) 2021 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: Durations with units smaller than days are balanced before adding
includes: [temporalHelpers.js]
features: [Temporal]
---*/

const calendar = new Temporal.Calendar("iso8601");
const date = new Temporal.PlainDate(2000, 5, 2, calendar);
const duration = new Temporal.Duration(0, 0, 0, 1, 24, 1440, 86400, 86400_000, 86400_000_000, 86400_000_000_000);

const result = calendar.dateAdd(date, duration);
TemporalHelpers.assertPlainDate(result, 2000, 5, "M05", 9, "units smaller than days are balanced");

const resultString = calendar.dateAdd(date, "P1DT24H1440M86400S");
TemporalHelpers.assertPlainDate(resultString, 2000, 5, "M05", 6, "units smaller than days are balanced");

const resultPropBag = calendar.dateAdd(date, { days: 1, hours: 24, minutes: 1440, seconds: 86400, milliseconds: 86400_000, microseconds: 86400_000_000, nanoseconds: 86400_000_000_000 });
TemporalHelpers.assertPlainDate(resultPropBag, 2000, 5, "M05", 9, "units smaller than days are balanced");