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// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
// Copyright (C) 2025 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.plainmonthday.from
description: PlainMonthDay can be created for all regular month codes (M01-M12) in Chinese calendar
features: [Temporal, Intl.Era-monthcode]
---*/
// Test that all regular month codes M01-M12 are valid for the Chinese calendar
// The Chinese calendar is a lunisolar calendar, so months vary in length
// Leap months (M01L-M12L) are tested elsewhere
const calendar = "chinese";
const monthCodes = [
"M01", "M02", "M03", "M04", "M05", "M06",
"M07", "M08", "M09", "M10", "M11", "M12"
];
for (const monthCode of monthCodes) {
// Test creation with monthCode
const pmd = Temporal.PlainMonthDay.from({ calendar, monthCode, day: 1 });
assert.sameValue(pmd.monthCode, monthCode, `monthCode ${monthCode} should be preserved`);
assert.sameValue(pmd.day, 1, "day should be 1");
// Test with day 30 (months can have 29 or 30 days)
const pmd30 = Temporal.PlainMonthDay.from({ calendar, monthCode, day: 30 });
assert.sameValue(pmd30.monthCode, monthCode, `${monthCode} with day 30 should be valid`);
assert.sameValue(pmd30.day, 30, `day should be 30 for ${monthCode}`);
// Test constrain overflow - Chinese months vary from 29-30 days
const constrained = Temporal.PlainMonthDay.from(
{ calendar, monthCode, day: 31 },
{ overflow: "constrain" }
);
assert.sameValue(constrained.monthCode, monthCode, `${monthCode} should be preserved with constrain`);
assert.sameValue(constrained.day, 30, `day 31 should be constrained to 30 for ${monthCode}`);
// Test reject overflow for day 31
assert.throws(RangeError, () => {
Temporal.PlainMonthDay.from({ calendar, monthCode, day: 31 }, { overflow: "reject" });
}, `${monthCode} with day 31 should throw with reject overflow`);
}
reportCompare(0, 0);