mirror of https://github.com/tc39/test262.git
91 lines
3.5 KiB
JavaScript
91 lines
3.5 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: Deterministic choosing of the reference year
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includes: [temporalHelpers.js]
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features: [Temporal]
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---*/
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const result1 = Temporal.PlainMonthDay.from({ year: 2021, monthCode: "M02", day: 29, calendar: "gregory" });
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TemporalHelpers.assertPlainMonthDay(
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result1, "M02", 28,
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"year and monthCode determine if calendar date exists, but reference year should be 1972",
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1972
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);
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const result2 = Temporal.PlainMonthDay.from({ year: 2021, month: 2, day: 29, calendar: "gregory" }, { overflow: "constrain" });
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TemporalHelpers.assertPlainMonthDay(
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result2, "M02", 28,
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"year and month determine if calendar date exists, but reference year should be 1972",
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1972
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);
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assert.throws(
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RangeError,
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() => Temporal.PlainMonthDay.from({ year: 2021, monthCode: "M02", day: 29, calendar: "gregory" }, { overflow: "reject" }),
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"RangeError thrown if monthCode and day does not exist in given year and overflow is reject"
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);
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assert.throws(
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RangeError,
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() => Temporal.PlainMonthDay.from({ year: 2021, month: 2, day: 29, calendar: "gregory" }, { overflow: "reject" }),
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"RangeError thrown if month and day does not exist in given year and overflow is reject"
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);
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const result3 = Temporal.PlainMonthDay.from({ monthCode: "M01", day: 1, calendar: "hebrew" });
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TemporalHelpers.assertPlainMonthDay(
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result3, "M01", 1,
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"reference year should be 1972 if date exists in 1972",
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1972
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);
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const result4 = Temporal.PlainMonthDay.from({ monthCode: "M05L", day: 1, calendar: "hebrew" });
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TemporalHelpers.assertPlainMonthDay(
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result4, "M05L", 1,
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"reference year should be the latest ISO year before 1972 if date does not exist in 1972",
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1970
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);
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const result5 = Temporal.PlainMonthDay.from({ year: 5781, monthCode: "M02", day: 30, calendar: "hebrew" });
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TemporalHelpers.assertPlainMonthDay(
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result5, "M02", 29,
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"year and monthCode determine if calendar date exists, and reference year must agree (Cheshvan 5781 has 29 days)",
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1972
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);
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const result6 = Temporal.PlainMonthDay.from({ year: 5781, month: 2, day: 30, calendar: "hebrew" }, { overflow: "constrain" });
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TemporalHelpers.assertPlainMonthDay(
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result6, "M02", 29,
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"year and month determine if calendar date exists, and reference year must agree (Cheshvan 5781 has 29 days)",
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1972
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);
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const result7 = Temporal.PlainMonthDay.from({ monthCode: "M02", day: 30, calendar: "hebrew" });
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TemporalHelpers.assertPlainMonthDay(
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result7, "M02", 30,
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"reference year must be the latest ISO year at or before 1972 that includes monthCode and day (Cheshvan 5781 has 29 days)",
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1971
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);
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assert.throws(
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RangeError,
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() => Temporal.PlainMonthDay.from({ year: 5781, monthCode: "M02", day: 30, calendar: "hebrew" }, { overflow: "reject" }),
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"RangeError thrown if monthCode and day does not exist in given year and overflow is reject"
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);
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assert.throws(
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RangeError,
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() => Temporal.PlainMonthDay.from({ year: 5781, month: 2, day: 30, calendar: "hebrew" }, { overflow: "reject" }),
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"RangeError thrown if month and day does not exist in given year and overflow is reject"
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);
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const result8 = Temporal.PlainMonthDay.from({ monthCode: "M04", day: 26, calendar: "hebrew" });
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TemporalHelpers.assertPlainMonthDay(
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result8, "M04", 26,
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"reference date should be the later one, if two options exist in ISO year 1972",
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1972
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);
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assert.sameValue(result8.toString(), "1972-12-31[u-ca=hebrew]", "reference date");
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