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Built-in non-ISO calendars require either monthCode/day, or month/day plus some form of year specification. This adds test coverage for each of the categories listed in https://github.com/tc39/proposal-temporal/issues/2664, of which some must currently reside in the test/intl402/ folders.
32 lines
1.0 KiB
JavaScript
32 lines
1.0 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.plainmonthday.from
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description: >
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Calendar.monthDayFromFields method validates which fields must be present
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includes: [temporalHelpers.js]
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features: [Temporal]
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---*/
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const calendar = new class extends Temporal.Calendar {
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fields(fields) {
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return fields.slice().concat("fnord");
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}
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monthDayFromFields(fields) {
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// accept everything except fnord
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assert.sameValue(fields.fnord, undefined);
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return new Temporal.PlainMonthDay(1, 1, this, 1972);
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}
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}("iso8601");
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// This would throw on any non-ISO builtin calendar
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const result = Temporal.PlainMonthDay.from({ month: 8, day: 16, calendar });
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TemporalHelpers.assertPlainMonthDay(result, "M01", 1, "monthDayFromFields determines what fields are necessary")
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assert.throws(
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Test262Error,
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() => Temporal.PlainMonthDay.from({ monthCode: "M09", day: 19, fnord: "fnord", calendar }),
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"monthDayFromFields determines what fields are disallowed"
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);
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