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efc7424844
Previously getISOFields() was used to get the exact value of the [[Calendar]] and [[TimeZone]] internal slots, as well as to get the reference ISO year for PlainMonthDay and reference ISO day for PlainYearMonth. Use calendarId and timeZoneId for the former and toString() for the latter.
67 lines
2.8 KiB
JavaScript
67 lines
2.8 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.calendar.prototype.yearmonthfromfields
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description: Reference ISO day is chosen to be the first of the calendar month
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info: |
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6.d. Perform ! CreateDataPropertyOrThrow(_fields_, *"day"*, *1*<sub>𝔽</sub>).
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e. Let _result_ be ? CalendarDateToISO(_calendar_.[[Identifier]], _fields_, _options_).
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includes: [temporalHelpers.js]
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features: [Temporal]
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---*/
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const result4 = Temporal.PlainYearMonth.from({ year: 5782, monthCode: "M04", day: 20, calendar: "hebrew" });
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TemporalHelpers.assertPlainYearMonth(
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result4,
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5782, 4, "M04",
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"reference day is the first of the calendar month even if day is given",
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/* era = */ undefined, /* era year = */ undefined, /* reference day = */ 5
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);
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const isoYearMonth = result4.toString().slice(0, 7);
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assert.sameValue(isoYearMonth, "2021-12", "Tevet 5782 begins in ISO 2021-12");
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const result5 = Temporal.PlainYearMonth.from({ year: 5783, monthCode: "M05L", calendar: "hebrew" }, { overflow: "constrain" });
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TemporalHelpers.assertPlainYearMonth(
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result5,
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5783, 6, "M06",
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"month code M05L does not exist in year 5783 (overflow constrain); Hebrew calendar constrains Adar I to Adar",
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/* era = */ undefined, /* era year = */ undefined, /* reference day = */ 22
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);
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assert.throws(
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RangeError,
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() => Temporal.PlainYearMonth.from({ year: 5783, monthCode: "M05L", calendar: "hebrew" }, { overflow: "reject" }),
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"month code M05L does not exist in year 5783 (overflow reject)",
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);
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const result6 = Temporal.PlainYearMonth.from({ year: 5783, month: 13, calendar: "hebrew" }, { overflow: "constrain" });
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TemporalHelpers.assertPlainYearMonth(
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result6,
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5783, 12, "M12",
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"month 13 does not exist in year 5783 (overflow constrain)",
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/* era = */ undefined, /* era year = */ undefined, /* reference day = */ 18
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);
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assert.throws(
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RangeError,
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() => Temporal.PlainYearMonth.from({ year: 5783, month: 13, calendar: "hebrew" }, { overflow: "reject" }),
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"month 13 does not exist in year 5783 (overflow reject)",
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);
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const result7 = Temporal.PlainYearMonth.from({ year: 5782, monthCode: "M04", day: 50, calendar: "hebrew" }, { overflow: "constrain" });
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TemporalHelpers.assertPlainYearMonth(
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result7,
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5782, 4, "M04",
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"reference day is set correctly even if day is out of range (overflow constrain)",
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/* era = */ undefined, /* era year = */ undefined, /* reference day = */ 5
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);
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const result8 = Temporal.PlainYearMonth.from({ year: 5782, monthCode: "M04", day: 50, calendar: "hebrew" }, { overflow: "reject" });
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TemporalHelpers.assertPlainYearMonth(
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result8,
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5782, 4, "M04",
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"reference day is set correctly even if day is out of range (overflow reject)",
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/* era = */ undefined, /* era year = */ undefined, /* reference day = */ 5
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);
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