tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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etc-timezone.js (1968B)

      1 // |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
      2 // Copyright (C) 2022 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.zoneddatetime.from
      7 description: Some Etc/GMT{+/-}{0}N timezones are valid, but not all
      8 features: [Temporal, canonical-tz]
      9 ---*/
     10 
     11 // "Etc/GMT-0" through "Etc/GMT-14" are OK
     12 
     13 const fields = { year: 1970, month: 1, day: 1 };
     14 
     15 [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14].forEach((n) => {
     16  const tz = "Etc/GMT-" + n;
     17  const instance = Temporal.ZonedDateTime.from({ ...fields, timeZone: tz });
     18  assert.sameValue(
     19    instance.timeZoneId,
     20    tz,
     21    tz + " is a valid timezone"
     22  );
     23 });
     24 
     25 const gmtMinus24TZ = "Etc/GMT-24";
     26 assert.throws(
     27  RangeError,
     28  () => Temporal.ZonedDateTime.from({ ...fields, timeZone: gmtMinus24TZ }),
     29  gmtMinus24TZ + " is an invalid timezone"
     30 );
     31 
     32 // "Etc/GMT-0N" is not OK (1 ≤ N ≤ 9)
     33 [1, 2, 3, 4, 5, 6, 7, 8, 9].forEach((n) => {
     34  const tz = "Etc/GMT-0" + n;
     35  assert.throws(
     36    RangeError,
     37    () => Temporal.ZonedDateTime.from({ ...fields, timeZone: tz }),
     38    tz + " is an invalid timezone"
     39  );
     40 });
     41 
     42 // "Etc/GMT+0N" is not OK (0 ≤ N ≤ 9)
     43 [0, 1, 2, 3, 4, 5, 6, 7, 8, 9].forEach((n) => {
     44  const tz = "Etc/GMT+0" + n;
     45  assert.throws(
     46    RangeError,
     47    () => Temporal.ZonedDateTime.from({ ...fields, timeZone: tz }),
     48    tz + " is an invalid timezone"
     49    );
     50 });
     51 
     52 // "Etc/GMT+0" through "Etc/GMT+12" are OK
     53 
     54 [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12].forEach((n) => {
     55  const tz = "Etc/GMT+" + n;
     56  const instance = Temporal.ZonedDateTime.from({ ...fields, timeZone: tz });
     57  assert.sameValue(
     58    instance.timeZoneId,
     59    tz,
     60    tz + " is a valid timezone"
     61  );
     62 });
     63 
     64 const gmtPlus24TZ = "Etc/GMT+24";
     65 assert.throws(
     66  RangeError,
     67  () => Temporal.ZonedDateTime.from({ ...fields, timeZone: gmtPlus24TZ }),
     68  gmtPlus24TZ + " is an invalid timezone"
     69 );
     70 
     71 reportCompare(0, 0);