tor-browser

The Tor Browser
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roundtrip-from-iso.js (3010B)

      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: >
      8  Check that various dates created from calculated properties have the expected
      9  properties
     10 includes: [temporalHelpers.js]
     11 features: [Temporal, Intl.Era-monthcode]
     12 ---*/
     13 
     14 const options = { overflow: "reject" };
     15 
     16 const calendars = [
     17  "buddhist",
     18  "chinese",
     19  "coptic",
     20  "dangi",
     21  "ethioaa",
     22  "ethiopic",
     23  "gregory",
     24  "hebrew",
     25  "indian",
     26  "islamic-civil",
     27  "islamic-tbla",
     28  "islamic-umalqura",
     29  "japanese",
     30  "persian",
     31  "roc",
     32 ];
     33 
     34 for (const calendar of calendars) {
     35  const year2000 = new Temporal.PlainDate(2000, 1, 1, calendar);
     36  testRoundtrip(year2000, calendar, "ISO date 2000-01-01");
     37  const year1 = new Temporal.PlainDate(1, 1, 1, calendar);
     38  testRoundtrip(year1, calendar, "ISO date 0001-01-01");
     39 }
     40 
     41 // Additional cases that were moved in from staging tests, or that we add to
     42 // catch regressions
     43 const additionalCases = [
     44  ["indian", 2000, 12, 31, "https://github.com/unicode-org/icu4x/issues/4914"],
     45 ];
     46 
     47 for (const [calendar, isoYear, isoMonth, isoDay, descr] of additionalCases) {
     48  const date = new Temporal.PlainDate(isoYear, isoMonth, isoDay, calendar);
     49  testRoundtrip(date, calendar, descr);
     50 }
     51 
     52 function testRoundtrip(date, calendar, descr) {
     53  const dateFromYearMonth = Temporal.PlainDate.from({
     54    calendar,
     55    year: date.year,
     56    month: date.month,
     57    day: date.day,
     58  });
     59  TemporalHelpers.assertPlainDate(
     60    dateFromYearMonth,
     61    date.year, date.month, date.monthCode, date.day,
     62    `${descr} (${calendar}) - created from year and month`,
     63    date.era, date.eraYear);
     64 
     65  const dateFromYearMonthCode = Temporal.PlainDate.from({
     66    calendar,
     67    year: date.year,
     68    monthCode: date.monthCode,
     69    day: date.day,
     70  });
     71  TemporalHelpers.assertPlainDate(
     72    dateFromYearMonthCode,
     73    date.year, date.month, date.monthCode, date.day,
     74    `${descr} (${calendar}) - created from year and month code`,
     75    date.era, date.eraYear);
     76 
     77  if (date.era === undefined) return;  // skip era-less calendars
     78 
     79  const dateFromEraMonth = Temporal.PlainDate.from({
     80    calendar,
     81    era: date.era,
     82    eraYear: date.eraYear,
     83    month: date.month,
     84    day: date.day,
     85  });
     86  TemporalHelpers.assertPlainDate(
     87    dateFromEraMonth,
     88    date.year, date.month, date.monthCode, date.day,
     89    `${descr} (${calendar}) - created from era, era year, and month`,
     90    date.era, date.eraYear);
     91 
     92  const dateFromEraMonthCode = Temporal.PlainDate.from({
     93    calendar,
     94    era: date.era,
     95    eraYear: date.eraYear,
     96    monthCode: date.monthCode,
     97    day: date.day,
     98  });
     99  TemporalHelpers.assertPlainDate(
    100    dateFromEraMonthCode,
    101    date.year, date.month, date.monthCode, date.day,
    102    `${descr} (${calendar}) - created from era, era year, and month code`,
    103    date.era, date.eraYear);
    104 }
    105 
    106 reportCompare(0, 0);