extreme-dates.js (5448B)
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.plaindatetime.from 7 description: from() gives sensible output at extremes of supported range 8 features: [Temporal, Intl.Era-monthcode] 9 includes: [temporalHelpers.js] 10 ---*/ 11 12 // Lunisolar/lunar calendars can't accurately predict celestial orbits for dates 13 // far into the past/future. Skip `chinese` and `dangi`. `islamic-umalqura` is 14 // okay because it is specified to fall back to `islamic-civil` outside the 15 // range of accuracy. 16 17 const testData = [ 18 ["buddhist", -271278, 4, "M04", 19, "be", -271278, 276303, 9, "M09", 13, "be", 276303], 19 ["coptic", -272099, 3, "M03", 23, "am", -272099, 275471, 5, "M05", 22, "am", 275471], 20 ["ethioaa", -266323, 3, "M03", 23, "aa", -266323, 281247, 5, "M05", 22, "aa", 281247], 21 ["ethiopic", -271823, 3, "M03", 23, "aa", -266323, 275747, 5, "M05", 22, "am", 275747], 22 ["gregory", -271821, 4, "M04", 19, "bce", 271822, 275760, 9, "M09", 13, "ce", 275760], 23 ["hebrew", -268058, 11, "M11", 4, "am", -268058, 279517, 10, "M09", 11, "am", 279517], 24 ["indian", -271899, 1, "M01", 29, "shaka", -271899, 275682, 6, "M06", 22, "shaka", 275682], 25 ["islamic-civil", -280804, 3, "M03", 21, "bh", 280805, 283583, 5, "M05", 23, "ah", 283583], 26 ["islamic-tbla", -280804, 3, "M03", 22, "bh", 280805, 283583, 5, "M05", 24, "ah", 283583], 27 ["islamic-umalqura", -280804, 3, "M03", 21, "bh", 280805, 283583, 5, "M05", 23, "ah", 283583], 28 ["japanese", -271821, 4, "M04", 19, "bce", 271822, 275760, 9, "M09", 13, "reiwa", 273742], 29 ["persian", -272442, 1, "M01", 9, "ap", -272442, 275139, 7, "M07", 12, "ap", 275139], 30 ["roc", -273732, 4, "M04", 19, "broc", 273733, 273849, 9, "M09", 13, "roc", 273849], 31 ]; 32 33 for (const [calendar, minYear, minMonth, minMonthCode, minDay, minEra, minEraYear, maxYear, maxMonth, maxMonthCode, maxDay, maxEra, maxEraYear] of testData) { 34 const min = Temporal.PlainDateTime.from({ 35 calendar, 36 year: minYear, 37 era: minEra, 38 eraYear: minEraYear, 39 month: minMonth, 40 monthCode: minMonthCode, 41 day: minDay, 42 nanosecond: 1, 43 }); 44 TemporalHelpers.assertPlainDateTime(min, 45 minYear, minMonth, minMonthCode, minDay, 0, 0, 0, 0, 0, 1, 46 `${calendar} minimum supported date`, 47 minEra, minEraYear); 48 49 const max = Temporal.PlainDateTime.from({ 50 calendar, 51 year: maxYear, 52 era: maxEra, 53 eraYear: maxEraYear, 54 month: maxMonth, 55 monthCode: maxMonthCode, 56 day: maxDay, 57 hour: 23, 58 minute: 59, 59 second: 59, 60 millisecond: 999, 61 microsecond: 999, 62 nanosecond: 999, 63 }); 64 TemporalHelpers.assertPlainDateTime(max, 65 maxYear, maxMonth, maxMonthCode, maxDay, 23, 59, 59, 999, 999, 999, 66 `${calendar} maximum supported date`, 67 maxEra, maxEraYear); 68 } 69 70 { 71 const calendar = "chinese"; 72 const minNonApproximated = Temporal.PlainDateTime.from({ calendar, year: 1900, month: 1, day: 1 }); 73 const maxNonApproximated = Temporal.PlainDateTime.from({ calendar, year: 2100, month: 12, day: 29, hour: 23, minute: 59, second: 59, millisecond: 999, microsecond: 999, nanosecond: 999 }); 74 TemporalHelpers.assertPlainDateTime(minNonApproximated, 75 1900, 1, "M01", 1, 0, 0, 0, 0, 0, 0, 76 `${calendar} minimum non-approximated date`); 77 TemporalHelpers.assertPlainDateTime(maxNonApproximated, 78 2100, 12, "M12", 29, 23, 59, 59, 999, 999, 999, 79 `${calendar} maximum non-approximated date`); 80 81 // Create dates far in the past and future but don't care about the conversion 82 Temporal.PlainDateTime.from({ calendar, year: -250000, month: 1, day: 1 }); 83 Temporal.PlainDateTime.from({ calendar, year: 250000, month: 1, day: 1 }); 84 } 85 86 { 87 const calendar = "dangi"; 88 const minNonApproximated = Temporal.PlainDateTime.from({ calendar, year: 1900, month: 1, day: 1 }); 89 const maxNonApproximated = Temporal.PlainDateTime.from({ calendar, year: 2050, month: 13, day: 29, hour: 23, minute: 59, second: 59, millisecond: 999, microsecond: 999, nanosecond: 999 }); 90 TemporalHelpers.assertPlainDateTime(minNonApproximated, 91 1900, 1, "M01", 1, 0, 0, 0, 0, 0, 0, `${calendar} minimum non-approximated date`); 92 TemporalHelpers.assertPlainDateTime(maxNonApproximated, 93 2050, 13, "M12", 29, 23, 59, 59, 999, 999, 999, `${calendar} maximum non-approximated date`); 94 95 // Create dates far in the past and future but don't care about the conversion 96 Temporal.PlainDateTime.from({ calendar, year: -250000, month: 1, day: 1 }); 97 Temporal.PlainDateTime.from({ calendar, year: 250000, month: 1, day: 1 }); 98 } 99 100 // Additionally test the range of islamic-umalqura in which it does not fall 101 // back to islamic-civil 102 { 103 const calendar = "islamic-umalqura"; 104 const minNonApproximated = Temporal.PlainDateTime.from({ calendar, year: 1300, month: 1, day: 1 }); 105 const maxNonApproximated = Temporal.PlainDateTime.from({ calendar, year: 1500, month: 12, day: 30, hour: 23, minute: 59, second: 59, millisecond: 999, microsecond: 999, nanosecond: 999 }); 106 TemporalHelpers.assertPlainDateTime(minNonApproximated, 107 1300, 1, "M01", 1, 0, 0, 0, 0, 0, 0, `${calendar} minimum non-approximated date`, 108 "ah", 1300); 109 TemporalHelpers.assertPlainDateTime(maxNonApproximated, 110 1500, 12, "M12", 30, 23, 59, 59, 999, 999, 999, `${calendar} maximum non-approximated date`, 111 "ah", 1500); 112 } 113 114 reportCompare(0, 0);