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In the AO DisambiguatePossibleInstants, a PlainDateTime instance is passed to user code. This instance should have the built-in ISO 8601 calendar. Here are some tests that ensure it does. See tc39/proposal-temporal#2671.
59 lines
2.1 KiB
JavaScript
59 lines
2.1 KiB
JavaScript
// Copyright (C) 2023 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.prototype.compare
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description: >
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Time zone's getPossibleInstantsFor is called with a PlainDateTime with the
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built-in ISO 8601 calendar
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features: [Temporal]
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info: |
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DisambiguatePossibleInstants:
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2. Let _n_ be _possibleInstants_'s length.
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...
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5. Assert: _n_ = 0.
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...
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19. If _disambiguation_ is *"earlier"*, then
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...
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c. Let _earlierDateTime_ be ! CreateTemporalDateTime(..., *"iso8601"*).
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d. Set _possibleInstants_ to ? GetPossibleInstantsFor(_timeZone_, _earlierDateTime_).
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...
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20. Assert: _disambiguation_ is *"compatible"* or *"later"*.
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...
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23. Let _laterDateTime_ be ! CreateTemporalDateTime(..., *"iso8601"*).
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24. Set _possibleInstants_ to ? GetPossibleInstantsFor(_timeZone_, _laterDateTime_).
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---*/
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class SkippedDateTime extends Temporal.TimeZone {
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constructor() {
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super("UTC");
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this.calls = 0;
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}
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getPossibleInstantsFor(dateTime) {
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// Calls occur in pairs. For the first one return no possible instants so
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// that DisambiguatePossibleInstants will call it again
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if (this.calls++ % 2 == 0) {
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return [];
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}
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assert.sameValue(
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dateTime.getISOFields().calendar,
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"iso8601",
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"getPossibleInstantsFor called with dateTime with built-in ISO 8601 calendar"
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);
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return super.getPossibleInstantsFor(dateTime);
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}
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}
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const nonBuiltinISOCalendar = new Temporal.Calendar("iso8601");
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const timeZone1 = new SkippedDateTime();
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const arg1 = { year: 2000, month: 5, day: 2, timeZone: timeZone1, calendar: nonBuiltinISOCalendar };
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const timeZone2 = new SkippedDateTime();
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const arg2 = { year: 2000, month: 5, day: 2, timeZone: timeZone2, calendar: nonBuiltinISOCalendar };
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Temporal.ZonedDateTime.compare(arg1, arg2);
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assert.sameValue(timeZone1.calls, 2, "getPossibleInstantsFor should have been called 2 times on first time zone");
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assert.sameValue(timeZone2.calls, 2, "getPossibleInstantsFor should have been called 2 times on second time zone");
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