mirror of https://github.com/tc39/test262.git
89 lines
3.9 KiB
JavaScript
89 lines
3.9 KiB
JavaScript
// Copyright (C) 2021 Igalia, S.L. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-temporal.zoneddatetime.from
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description: Negative time fields are balanced upwards
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info: |
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sec-temporal-balancetime steps 3–14:
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3. Set _microsecond_ to _microsecond_ + floor(_nanosecond_ / 1000).
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4. Set _nanosecond_ to _nanosecond_ modulo 1000.
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5. Set _millisecond_ to _millisecond_ + floor(_microsecond_ / 1000).
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6. Set _microsecond_ to _microsecond_ modulo 1000.
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7. Set _second_ to _second_ + floor(_millisecond_ / 1000).
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8. Set _millisecond_ to _millisecond_ modulo 1000.
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9. Set _minute_ to _minute_ + floor(_second_ / 60).
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10. Set _second_ to _second_ modulo 60.
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11. Set _hour_ to _hour_ + floor(_minute_ / 60).
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12. Set _minute_ to _minute_ modulo 60.
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13. Let _days_ be floor(_hour_ / 24).
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14. Set _hour_ to _hour_ modulo 24.
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sec-temporal-addtime step 8:
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8. Return ? BalanceTime(_hour_, _minute_, _second_, _millisecond_, _microsecond_, _nanosecond_).
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sec-temporal-adddatetime step 1:
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1. Let _timeResult_ be ? AddTime(_hour_, _minute_, _second_, _millisecond_, _microsecond_, _nanosecond_, _hours_, _minutes_, _seconds_, _milliseconds_, _microseconds_, _nanoseconds_).
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sec-temporal-builtintimezonegetinstantfor step 13.a:
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a. Let _earlier_ be ? AddDateTime(_dateTime_.[[ISOYear]], _dateTime_.[[ISOMonth]], _dateTime_.[[ISODay]], _dateTime_.[[ISOHour]], _dateTime_.[[ISOMinute]], _dateTime_.[[ISOSecond]], _dateTime_.[[ISOMillisecond]], _dateTime_.[[ISOMicrosecond]], _dateTime_.[[ISONanosecond]], 0, 0, 0, 0, 0, 0, 0, 0, 0, −_nanoseconds_, *"constrain"*).
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sec-temporal-interpretisodatetimeoffset steps 4–10:
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4. If _offsetNanoseconds_ is *null*, or _offset_ is *"ignore"*, then
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a. Let _instant_ be ? BuiltinTimeZoneGetInstantFor(_timeZone_, _dateTime_, _disambiguation_).
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...
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...
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6. Assert: _offset_ is *"prefer"* or *"reject"*.
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7. Let _possibleInstants_ be ? GetPossibleInstantsFor(_timeZone_, _dateTime_).
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...
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9. If _offset_ is *"reject"*, throw a *RangeError* exception.
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10. Let _instant_ be ? DisambiguatePossibleInstants(_possibleInstants_, _timeZone_, _dateTime_, _disambiguation_).
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sec-temporal-totemporalzoneddatetime step 7:
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7. Let _epochNanoseconds_ be ? InterpretISODateTimeOffset(_result_.[[Year]], _result_.[[Month]], _result_.[[Day]], _result_.[[Hour]], _result_.[[Minute]], _result_.[[Second]], _result_.[[Millisecond]], _result_.[[Microsecond]], _result_.[[Nanosecond]], _offsetNanoseconds_, _timeZone_, _disambiguation_, _offset_).
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sec-temporal.zoneddatetime.from step 3:
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3. Return ? ToTemporalZonedDateTime(_item_, _options_).
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includes: [compareArray.js, temporalHelpers.js]
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features: [Temporal]
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---*/
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const shiftInstant = new Temporal.Instant(3661_001_001_001n);
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const tz1 = TemporalHelpers.oneShiftTimeZone(shiftInstant, 2);
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// This code path is encountered if offset is `ignore` or `prefer`,
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// disambiguation is `earlier` and the shift is a spring-forward change
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Temporal.ZonedDateTime.from({
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year: 1970,
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month: 1,
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day: 1,
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hour: 1,
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minute: 1,
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second: 1,
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millisecond: 1,
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microsecond: 1,
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nanosecond: 1,
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timeZone: tz1,
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}, { offset: "ignore", disambiguation: "earlier" });
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const expected1 = [
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"1970-01-01T01:01:01.001001001",
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"1970-01-01T01:01:01.001000999",
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];
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assert.compareArray(tz1.getPossibleInstantsForCalledWith, expected1);
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const tz2 = TemporalHelpers.oneShiftTimeZone(shiftInstant, 2);
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Temporal.ZonedDateTime.from({
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year: 1970,
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month: 1,
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day: 1,
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hour: 1,
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minute: 1,
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second: 1,
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millisecond: 1,
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microsecond: 1,
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nanosecond: 1,
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timeZone: tz2,
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}, { offset: "prefer", disambiguation: "earlier" });
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const expected2 = [
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"1970-01-01T01:01:01.001001001",
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"1970-01-01T01:01:01.001000999",
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];
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assert.compareArray(tz2.getPossibleInstantsForCalledWith, expected2);
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