tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

extreme-dates.js (4785B)

      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.plaindate.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.PlainDate.from({
     35    calendar,
     36    year: minYear,
     37    era: minEra,
     38    eraYear: minEraYear,
     39    month: minMonth,
     40    monthCode: minMonthCode,
     41    day: minDay,
     42  });
     43  TemporalHelpers.assertPlainDate(min,
     44    minYear, minMonth, minMonthCode, minDay,
     45    `${calendar} minimum supported date`,
     46    minEra, minEraYear);
     47 
     48  const max = Temporal.PlainDate.from({
     49    calendar,
     50    year: maxYear,
     51    era: maxEra,
     52    eraYear: maxEraYear,
     53    month: maxMonth,
     54    monthCode: maxMonthCode,
     55    day: maxDay,
     56  });
     57  TemporalHelpers.assertPlainDate(max,
     58    maxYear, maxMonth, maxMonthCode, maxDay,
     59    `${calendar} maximum supported date`,
     60    maxEra, maxEraYear);
     61 }
     62 
     63 {
     64  const calendar = "chinese";
     65  const minNonApproximated = Temporal.PlainDate.from({ calendar, year: 1900, month: 1, day: 1 });
     66  const maxNonApproximated = Temporal.PlainDate.from({ calendar, year: 2100, month: 12, day: 29 });
     67  TemporalHelpers.assertPlainDate(minNonApproximated,
     68    1900, 1, "M01", 1, `${calendar} minimum non-approximated date`);
     69  TemporalHelpers.assertPlainDate(maxNonApproximated,
     70    2100, 12, "M12", 29, `${calendar} maximum non-approximated date`);
     71 
     72  // Create dates far in the past and future but don't care about the conversion
     73  Temporal.PlainDate.from({ calendar, year: -250000, month: 1, day: 1 });
     74  Temporal.PlainDate.from({ calendar, year: 250000, month: 1, day: 1 });
     75 }
     76 
     77 {
     78  const calendar = "dangi";
     79  const minNonApproximated = Temporal.PlainDate.from({ calendar, year: 1900, month: 1, day: 1 });
     80  const maxNonApproximated = Temporal.PlainDate.from({ calendar, year: 2050, month: 13, day: 29 });
     81  TemporalHelpers.assertPlainDate(minNonApproximated,
     82    1900, 1, "M01", 1, `${calendar} minimum non-approximated date`);
     83  TemporalHelpers.assertPlainDate(maxNonApproximated,
     84    2050, 13, "M12", 29, `${calendar} maximum non-approximated date`);
     85 
     86  // Create dates far in the past and future but don't care about the conversion
     87  Temporal.PlainDate.from({ calendar, year: -250000, month: 1, day: 1 });
     88  Temporal.PlainDate.from({ calendar, year: 250000, month: 1, day: 1 });
     89 }
     90 
     91 // Additionally test the range of islamic-umalqura in which it does not fall
     92 // back to islamic-civil
     93 {
     94  const calendar = "islamic-umalqura";
     95  const minNonApproximated = Temporal.PlainDate.from({ calendar, year: 1300, month: 1, day: 1 });
     96  const maxNonApproximated = Temporal.PlainDate.from({ calendar, year: 1500, month: 12, day: 30 });
     97  TemporalHelpers.assertPlainDate(minNonApproximated,
     98    1300, 1, "M01", 1, `${calendar} minimum non-approximated date`,
     99    "ah", 1300);
    100  TemporalHelpers.assertPlainDate(maxNonApproximated,
    101    1500, 12, "M12", 30, `${calendar} maximum non-approximated date`,
    102    "ah", 1500);
    103 }
    104 
    105 reportCompare(0, 0);