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// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
// Copyright (C) 2024 Mozilla Corporation. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.plaindate.from
description: Check that computed kevi'ah symbols for years are in the valid set
features: [Temporal, Intl.Era-monthcode]
---*/
// Ensure kevi'ah is correct.
//
function KeviahSymbol(year) {
let startOfYear = Temporal.PlainDate.from({
calendar: "hebrew",
year,
monthCode: "M01",
day: 1,
});
let firstDayOfPesach = Temporal.PlainDate.from({
calendar: "hebrew",
year,
monthCode: "M07",
day: 15,
});
let yearSymbol = {
353: "D", // deficient
354: "R", // regular
355: "C", // complete
383: "D", // deficient, leap year
384: "R", // regular, leap year
385: "C", // complete, leap year
};
// Week starts on Sunday.
let daySymbol = date => (date.dayOfWeek % 7) + 1;
let {daysInYear} = startOfYear;
assert.sameValue(daysInYear in yearSymbol, true);
return `${daySymbol(startOfYear)}${yearSymbol[daysInYear]}${daySymbol(firstDayOfPesach)}`;
}
const validKeviahSymbols = new Set([
"2D3", "2C5", "2D5", "2C7",
"3R5", "3R7",
"5R7", "5C1", "5D1", "5C3",
"7D1", "7C3", "7D3", "7C5"
]);
for (let year = 3700; year <= 5800; ++year) {
let sym = KeviahSymbol(year);
assert.sameValue(validKeviahSymbols.has(sym), true, `${year} -> ${sym}`);
}
reportCompare(0, 0);