| // Copyright (C) 2021 Igalia, S.L. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-temporal.timezone.prototype.getpossibleinstantsfor |
| description: A pre-epoch value is handled correctly by the modulo operation in GetISOPartsFromEpoch |
| info: | |
| sec-temporal-getisopartsfromepoch step 1: |
| 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>. |
| sec-temporal-builtintimezonegetplaindatetimefor step 2: |
| 2. Let _result_ be ! GetISOPartsFromEpoch(_instant_.[[Nanoseconds]]). |
| features: [Temporal] |
| includes: [compareArray.js] |
| ---*/ |
| |
| const datetime = new Temporal.ZonedDateTime(-13849764_999_999_999n, "UTC"); |
| |
| // This code path shows up anywhere we convert an exact time, before the Unix |
| // epoch, with nonzero microseconds or nanoseconds, into a wall time. |
| |
| const instance = new Temporal.TimeZone("UTC"); |
| const result = instance.getPossibleInstantsFor(datetime); |
| assert.compareArray(result.map((i) => i.epochNanoseconds), [-13849764_999_999_999n]); |
