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// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
// Copyright (C) 2026 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.plainmonthday.from
features: [Temporal, Intl.Era-monthcode]
description: Check that reference years are correct in situations where user provides a year
---*/
// these combinations of months and days have not occurred in the Chinese calendar
// since 1900 and will not occur before 2035
// All of these should throw
// Values for "year" other than 1234 are the out-of-range reference years that 1. ICU4X's
// algorithm and 2. ICU4C's algorithm produce. These are not to be used, because they
// do not agree and because they pre-date the adoption of the calendar in its current form.
const nonexistentMonthDays = [
{ year: 1234, monthCode: "M01L", day: 29, },
{ year: 1234, monthCode: "M01L", day: 30, },
{ year: 1234, monthCode: "M02L", day: 30, },
{ year: 1234, monthCode: "M08L", day: 30, },
{ year: 1234, monthCode: "M09L", day: 30, },
{ year: 1234, monthCode: "M10L", day: 30, },
{ year: 1234, monthCode: "M11L", day: 30, },
{ year: 1234, monthCode: "M12L", day: 29, },
{ year: 1234, monthCode: "M12L", day: 30, },
// ICU4X years
{ year: 1651, monthCode: "M01L", day: 29, },
{ year: 1461, monthCode: "M01L", day: 30, },
{ year: 1765, monthCode: "M02L", day: 30, },
{ year: 1718, monthCode: "M08L", day: 30, },
{ year: -5738, monthCode: "M09L", day: 30, },
{ year: -4098, monthCode: "M10L", day: 30, },
{ year: -2173, monthCode: "M11L", day: 30, },
{ year: 1403, monthCode: "M12L", day: 29, },
{ year: -180, monthCode: "M12L", day: 30, },
// ICU4C years
{ year: 1898, monthCode: "M01L", day: 29, },
{ year: 1898, monthCode: "M01L", day: 30, },
{ year: 1830, monthCode: "M02L", day: 30, },
{ year: 1718, monthCode: "M08L", day: 30, },
{ year: 1843, monthCode: "M09L", day: 30, },
{ year: 1737, monthCode: "M10L", day: 30, },
{ year: 1890, monthCode: "M11L", day: 30, },
{ year: 1879, monthCode: "M12L", day: 29, },
{ year: 1784, monthCode: "M12L", day: 30, },
];
const calendars = ["chinese", "dangi"];
for (let calendar of calendars){
for (let {year, monthCode, day} of nonexistentMonthDays){
assert.throws(RangeError, () => {
const pmd = Temporal.PlainMonthDay.from({calendar, year, monthCode, day}, {overflow: "reject" })
}, `${year}, ${monthCode}, ${day} should not be valid with reject overflow`);
}
}
reportCompare(0, 0);