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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.plaindate.from
description: from() gives sensible output at extremes of supported range
features: [Temporal, Intl.Era-monthcode]
includes: [temporalHelpers.js]
---*/
// Lunisolar/lunar calendars can't accurately predict celestial orbits for dates
// far into the past/future. Skip `chinese` and `dangi`. `islamic-umalqura` is
// okay because it is specified to fall back to `islamic-civil` outside the
// range of accuracy.
const testData = [
["buddhist", -271278, 4, "M04", 19, "be", -271278, 276303, 9, "M09", 13, "be", 276303],
["coptic", -272099, 3, "M03", 23, "am", -272099, 275471, 5, "M05", 22, "am", 275471],
["ethioaa", -266323, 3, "M03", 23, "aa", -266323, 281247, 5, "M05", 22, "aa", 281247],
["ethiopic", -271823, 3, "M03", 23, "aa", -266323, 275747, 5, "M05", 22, "am", 275747],
["gregory", -271821, 4, "M04", 19, "bce", 271822, 275760, 9, "M09", 13, "ce", 275760],
["hebrew", -268058, 11, "M11", 4, "am", -268058, 279517, 10, "M09", 11, "am", 279517],
["indian", -271899, 1, "M01", 29, "shaka", -271899, 275682, 6, "M06", 22, "shaka", 275682],
["islamic-civil", -280804, 3, "M03", 21, "bh", 280805, 283583, 5, "M05", 23, "ah", 283583],
["islamic-tbla", -280804, 3, "M03", 22, "bh", 280805, 283583, 5, "M05", 24, "ah", 283583],
["islamic-umalqura", -280804, 3, "M03", 21, "bh", 280805, 283583, 5, "M05", 23, "ah", 283583],
["japanese", -271821, 4, "M04", 19, "bce", 271822, 275760, 9, "M09", 13, "reiwa", 273742],
["persian", -272442, 1, "M01", 9, "ap", -272442, 275139, 7, "M07", 12, "ap", 275139],
["roc", -273732, 4, "M04", 19, "broc", 273733, 273849, 9, "M09", 13, "roc", 273849],
];
for (const [calendar, minYear, minMonth, minMonthCode, minDay, minEra, minEraYear, maxYear, maxMonth, maxMonthCode, maxDay, maxEra, maxEraYear] of testData) {
const min = Temporal.PlainDate.from({
calendar,
year: minYear,
era: minEra,
eraYear: minEraYear,
month: minMonth,
monthCode: minMonthCode,
day: minDay,
});
TemporalHelpers.assertPlainDate(min,
minYear, minMonth, minMonthCode, minDay,
`${calendar} minimum supported date`,
minEra, minEraYear);
const max = Temporal.PlainDate.from({
calendar,
year: maxYear,
era: maxEra,
eraYear: maxEraYear,
month: maxMonth,
monthCode: maxMonthCode,
day: maxDay,
});
TemporalHelpers.assertPlainDate(max,
maxYear, maxMonth, maxMonthCode, maxDay,
`${calendar} maximum supported date`,
maxEra, maxEraYear);
}
{
const calendar = "chinese";
const minNonApproximated = Temporal.PlainDate.from({ calendar, year: 1900, month: 1, day: 1 });
const maxNonApproximated = Temporal.PlainDate.from({ calendar, year: 2100, month: 12, day: 29 });
TemporalHelpers.assertPlainDate(minNonApproximated,
1900, 1, "M01", 1, `${calendar} minimum non-approximated date`);
TemporalHelpers.assertPlainDate(maxNonApproximated,
2100, 12, "M12", 29, `${calendar} maximum non-approximated date`);
// Create dates far in the past and future but don't care about the conversion
Temporal.PlainDate.from({ calendar, year: -250000, month: 1, day: 1 });
Temporal.PlainDate.from({ calendar, year: 250000, month: 1, day: 1 });
}
{
const calendar = "dangi";
const minNonApproximated = Temporal.PlainDate.from({ calendar, year: 1900, month: 1, day: 1 });
const maxNonApproximated = Temporal.PlainDate.from({ calendar, year: 2050, month: 13, day: 29 });
TemporalHelpers.assertPlainDate(minNonApproximated,
1900, 1, "M01", 1, `${calendar} minimum non-approximated date`);
TemporalHelpers.assertPlainDate(maxNonApproximated,
2050, 13, "M12", 29, `${calendar} maximum non-approximated date`);
// Create dates far in the past and future but don't care about the conversion
Temporal.PlainDate.from({ calendar, year: -250000, month: 1, day: 1 });
Temporal.PlainDate.from({ calendar, year: 250000, month: 1, day: 1 });
}
// Additionally test the range of islamic-umalqura in which it does not fall
// back to islamic-civil
{
const calendar = "islamic-umalqura";
const minNonApproximated = Temporal.PlainDate.from({ calendar, year: 1300, month: 1, day: 1 });
const maxNonApproximated = Temporal.PlainDate.from({ calendar, year: 1500, month: 12, day: 30 });
TemporalHelpers.assertPlainDate(minNonApproximated,
1300, 1, "M01", 1, `${calendar} minimum non-approximated date`,
"ah", 1300);
TemporalHelpers.assertPlainDate(maxNonApproximated,
1500, 12, "M12", 30, `${calendar} maximum non-approximated date`,
"ah", 1500);
}
reportCompare(0, 0);