islamic-umalqura-month-codes.js (1955B)
1 // |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally 2 // Copyright (C) 2025 Igalia, S.L. All rights reserved. 3 // This code is governed by the BSD license found in the LICENSE file. 4 5 /*--- 6 esid: sec-temporal.plainmonthday.from 7 description: PlainMonthDay can be created for all month codes (M01-M12) in Islamic-umalqura calendar 8 features: [Temporal, Intl.Era-monthcode] 9 ---*/ 10 11 // Test that all month codes M01-M12 are valid for the Islamic-umalqura calendar 12 // Unlike the tabular islamic-civil and islamic-tbla calendars, islamic-umalqura 13 // is an observational calendar where any month can have either 29 or 30 days 14 // depending on the year. Therefore, all months support up to 30 days for PlainMonthDay. 15 16 const calendar = "islamic-umalqura"; 17 18 const allMonths = ["M01", "M02", "M03", "M04", "M05", "M06", "M07", "M08", "M09", "M10", "M11", "M12"]; 19 20 for (const monthCode of allMonths) { 21 const pmd = Temporal.PlainMonthDay.from({ calendar, monthCode, day: 1 }); 22 assert.sameValue(pmd.monthCode, monthCode, `monthCode ${monthCode} should be preserved`); 23 assert.sameValue(pmd.day, 1, `day should be 1 for ${monthCode}`); 24 25 const pmd30 = Temporal.PlainMonthDay.from({ calendar, monthCode, day: 30 }); 26 assert.sameValue(pmd30.monthCode, monthCode, `${monthCode} with day 30 should be valid`); 27 assert.sameValue(pmd30.day, 30, `day should be 30 for ${monthCode}`); 28 29 const constrained = Temporal.PlainMonthDay.from( 30 { calendar, monthCode, day: 31 }, 31 { overflow: "constrain" } 32 ); 33 assert.sameValue(constrained.monthCode, monthCode, `${monthCode} should be preserved with constrain`); 34 assert.sameValue(constrained.day, 30, `day 31 should be constrained to 30 for ${monthCode}`); 35 36 assert.throws(RangeError, () => { 37 Temporal.PlainMonthDay.from({ calendar, monthCode, day: 31 }, { overflow: "reject" }); 38 }, `${monthCode} with day 31 should throw with reject overflow`); 39 } 40 41 reportCompare(0, 0);