tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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argument-zoneddatetime-negative-epochnanoseconds.js (1143B)

      1 // |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
      2 // Copyright (C) 2021 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.plaintime.from
      7 description: A pre-epoch value is handled correctly by the modulo operation in GetISOPartsFromEpoch
      8 info: |
      9    sec-temporal-getisopartsfromepoch step 1:
     10      1. Let _remainderNs_ be the mathematical value whose sign is the sign of _epochNanoseconds_ and whose magnitude is abs(_epochNanoseconds_) modulo 10<sup>6</sup>.
     11    sec-temporal-builtintimezonegetplaindatetimefor step 2:
     12      2. Let _result_ be ! GetISOPartsFromEpoch(_instant_.[[Nanoseconds]]).
     13 features: [Temporal]
     14 includes: [temporalHelpers.js]
     15 ---*/
     16 
     17 const datetime = new Temporal.ZonedDateTime(-13849764_999_999_999n, "UTC");
     18 
     19 // This code path shows up anywhere we convert an exact time, before the Unix
     20 // epoch, with nonzero microseconds or nanoseconds, into a wall time.
     21 
     22 const result = Temporal.PlainTime.from(datetime);
     23 TemporalHelpers.assertPlainTime(result, 16, 50, 35, 0, 0, 1);
     24 
     25 reportCompare(0, 0);