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Intl Era Monthcode: Date addition tests for hebrew calendar

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Co-Authored-By: Jesse Alama <jesse@igalia.com>
Co-Authored-By: Philip Chimento <pchimento@igalia.com>
This commit is contained in:
Ben Allen 2025-11-07 20:40:59 -08:00 committed by Ms2ger
parent c6789f4d50
commit 90889d25cb
12 changed files with 768 additions and 0 deletions
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test/intl402/Temporal/PlainDate/prototype/add/basic-hebrew.js vendored Normal file
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// Copyright (C) 2025 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.plaindate.prototype.add
description: Basic addition and subtraction in the hebrew calendar
features: [Temporal]
includes: [temporalHelpers.js]
---*/
const calendar = "hebrew";
const options = { overflow: "reject" };
// Years
// Months
// Weeks
// Days
const days10 = new Temporal.Duration(0, 0, 0, /* days = */ 10);
TemporalHelpers.assertPlainDate(
Temporal.PlainDate.from({ year: 5785, monthCode: "M01", day: 1, calendar }, options).add(days10),
5785, 1, "M01", 11, "adding 10 days", "am", 5785
);

101
test/intl402/Temporal/PlainDate/prototype/add/leap-months-hebrew.js vendored Normal file
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// Copyright (C) 2025 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.plaindate.prototype.add
description: Arithmetic around leap months in the hebrew calendar
includes: [temporalHelpers.js]
features: [Temporal, Intl.Era-monthcode]
---*/
const calendar = "hebrew";
const options = { overflow: "reject" };
// Years
// Months
const months1 = new Temporal.Duration(0, 1);
const months1n = new Temporal.Duration(0, -1);
const months2 = new Temporal.Duration(0, 2);
const months2n = new Temporal.Duration(0, -2);
const date1 = Temporal.PlainDate.from({ year: 5784, monthCode: "M04", day: 1, calendar }, options);
TemporalHelpers.assertPlainDate(
date1.add(months1),
5784, 5, "M05", 1, "Adding 1 month to M04 in leap year lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
date1.add(months2),
5784, 6, "M05L", 1, "Adding 2 months to M04 in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
date1.add(new Temporal.Duration(0, 3)),
5784, 7, "M06", 1, "Adding 3 months to M04 in leap year lands in M06 (Adar II)",
"am", 5784
);
const date2 = Temporal.PlainDate.from({ year: 5784, monthCode: "M05L", day: 1, calendar }, options);
TemporalHelpers.assertPlainDate(
date2.add(months1),
5784, 7, "M06", 1, "Adding 1 month to M05L (Adar I) lands in M06 (Adar II)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
Temporal.PlainDate.from({ year: 5783, monthCode: "M04", day: 1, calendar }, options).add(months2),
5783, 6, "M06", 1, "Adding 2 months to M04 in non-leap year lands in M06 (no M05L)",
"am", 5783
);
const date3 = Temporal.PlainDate.from({ year: 5784, monthCode: "M07", day: 1, calendar }, options);
TemporalHelpers.assertPlainDate(
date3.add(months1n),
5784, 7, "M06", 1, "Subtracting 1 month from M07 in leap year lands in M06 (Adar II)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
date3.add(months2n),
5784, 6, "M05L", 1, "Subtracting 2 months from M07 in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
date3.add(new Temporal.Duration(0, -3)),
5784, 5, "M05", 1, "Subtracting 3 months from M07 in leap year lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
Temporal.PlainDate.from({ year: 5784, monthCode: "M06", day: 1, calendar }).add(months1n),
5784, 6, "M05L", 1, "Subtracting 1 month from M06 (Adar II) in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
date2.add(months1n),
5784, 5, "M05", 1, "Subtracting 1 month from M05L (Adar I) lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
Temporal.PlainDate.from({ year: 5783, monthCode: "M07", day: 1, calendar }).add(months2n),
5783, 5, "M05", 1, "Subtracting 2 months from M07 in non-leap year lands in M05 (no M05L)",
"am", 5783
);
// Weeks
// Days
const days10 = new Temporal.Duration(0, 0, 0, /* days = */ 10);
TemporalHelpers.assertPlainDate(
Temporal.PlainDate.from({ year: 5784, monthCode: "M05L", day: 30, calendar }, options).add(days10),
5784, 7, "M06", 10, "add 10 days to leap day", "am", 5784
);

27
test/intl402/Temporal/PlainDate/prototype/subtract/basic-hebrew.js vendored Normal file
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// Copyright (C) 2025 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.plaindate.prototype.subtract
description: Basic addition and subtraction in the hebrew calendar
features: [Temporal]
includes: [temporalHelpers.js]
---*/
const calendar = "hebrew";
const options = { overflow: "reject" };
// Years
// Months
// Weeks
// Days
const days10 = new Temporal.Duration(0, 0, 0, /* days = */ -10);
TemporalHelpers.assertPlainDate(
Temporal.PlainDate.from({ year: 5785, monthCode: "M01", day: 1, calendar }, options).subtract(days10),
5785, 1, "M01", 11, "adding 10 days", "am", 5785
);

101
test/intl402/Temporal/PlainDate/prototype/subtract/leap-months-hebrew.js vendored Normal file
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// Copyright (C) 2025 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.plaindate.prototype.subtract
description: Arithmetic around leap months in the hebrew calendar
includes: [temporalHelpers.js]
features: [Temporal, Intl.Era-monthcode]
---*/
const calendar = "hebrew";
const options = { overflow: "reject" };
// Years
// Months
const months1 = new Temporal.Duration(0, -1);
const months1n = new Temporal.Duration(0, 1);
const months2 = new Temporal.Duration(0, -2);
const months2n = new Temporal.Duration(0, 2);
const date1 = Temporal.PlainDate.from({ year: 5784, monthCode: "M04", day: 1, calendar }, options);
TemporalHelpers.assertPlainDate(
date1.subtract(months1),
5784, 5, "M05", 1, "Adding 1 month to M04 in leap year lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
date1.subtract(months2),
5784, 6, "M05L", 1, "Adding 2 months to M04 in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
date1.subtract(new Temporal.Duration(0, -3)),
5784, 7, "M06", 1, "Adding 3 months to M04 in leap year lands in M06 (Adar II)",
"am", 5784
);
const date2 = Temporal.PlainDate.from({ year: 5784, monthCode: "M05L", day: 1, calendar }, options);
TemporalHelpers.assertPlainDate(
date2.subtract(months1),
5784, 7, "M06", 1, "Adding 1 month to M05L (Adar I) lands in M06 (Adar II)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
Temporal.PlainDate.from({ year: 5783, monthCode: "M04", day: 1, calendar }, options).subtract(months2),
5783, 6, "M06", 1, "Adding 2 months to M04 in non-leap year lands in M06 (no M05L)",
"am", 5783
);
const date3 = Temporal.PlainDate.from({ year: 5784, monthCode: "M07", day: 1, calendar }, options);
TemporalHelpers.assertPlainDate(
date3.subtract(months1n),
5784, 7, "M06", 1, "Subtracting 1 month from M07 in leap year lands in M06 (Adar II)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
date3.subtract(months2n),
5784, 6, "M05L", 1, "Subtracting 2 months from M07 in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
date3.subtract(new Temporal.Duration(0, 3)),
5784, 5, "M05", 1, "Subtracting 3 months from M07 in leap year lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
Temporal.PlainDate.from({ year: 5784, monthCode: "M06", day: 1, calendar }).subtract(months1n),
5784, 6, "M05L", 1, "Subtracting 1 month from M06 (Adar II) in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
date2.subtract(months1n),
5784, 5, "M05", 1, "Subtracting 1 month from M05L (Adar I) lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDate(
Temporal.PlainDate.from({ year: 5783, monthCode: "M07", day: 1, calendar }).subtract(months2n),
5783, 5, "M05", 1, "Subtracting 2 months from M07 in non-leap year lands in M05 (no M05L)",
"am", 5783
);
// Weeks
// Days
const days10 = new Temporal.Duration(0, 0, 0, /* days = */ -10);
TemporalHelpers.assertPlainDate(
Temporal.PlainDate.from({ year: 5784, monthCode: "M05L", day: 30, calendar }, options).subtract(days10),
5784, 7, "M06", 10, "add 10 days to leap day", "am", 5784
);

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test/intl402/Temporal/PlainDateTime/prototype/add/basic-hebrew.js vendored Normal file
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// Copyright (C) 2025 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.plaindatetime.prototype.add
description: Basic addition and subtraction in the hebrew calendar
features: [Temporal]
includes: [temporalHelpers.js]
---*/
const calendar = "hebrew";
const options = { overflow: "reject" };
// Years
// Months
// Weeks
// Days
const days10 = new Temporal.Duration(0, 0, 0, /* days = */ 10);
TemporalHelpers.assertPlainDateTime(
Temporal.PlainDateTime.from({ year: 5785, monthCode: "M01", day: 1, hour: 12, minute: 34, calendar }, options).add(days10),
5785, 1, "M01", 11, 12, 34, 0, 0, 0, 0, "adding 10 days", "am", 5785
);

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test/intl402/Temporal/PlainDateTime/prototype/add/leap-months-hebrew.js vendored Normal file
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// Copyright (C) 2025 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.plaindatetime.prototype.add
description: Arithmetic around leap months in the hebrew calendar
includes: [temporalHelpers.js]
features: [Temporal, Intl.Era-monthcode]
---*/
const calendar = "hebrew";
const options = { overflow: "reject" };
// Years
// Months
const months1 = new Temporal.Duration(0, 1);
const months1n = new Temporal.Duration(0, -1);
const months2 = new Temporal.Duration(0, 2);
const months2n = new Temporal.Duration(0, -2);
const date1 = Temporal.PlainDateTime.from({ year: 5784, monthCode: "M04", day: 1, hour: 12, minute: 34, calendar }, options);
TemporalHelpers.assertPlainDateTime(
date1.add(months1),
5784, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Adding 1 month to M04 in leap year lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date1.add(months2),
5784, 6, "M05L", 1, 12, 34, 0, 0, 0, 0, "Adding 2 months to M04 in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date1.add(new Temporal.Duration(0, 3)),
5784, 7, "M06", 1, 12, 34, 0, 0, 0, 0, "Adding 3 months to M04 in leap year lands in M06 (Adar II)",
"am", 5784
);
const date2 = Temporal.PlainDateTime.from({ year: 5784, monthCode: "M05L", day: 1, hour: 12, minute: 34, calendar }, options);
TemporalHelpers.assertPlainDateTime(
date2.add(months1),
5784, 7, "M06", 1, 12, 34, 0, 0, 0, 0, "Adding 1 month to M05L (Adar I) lands in M06 (Adar II)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
Temporal.PlainDateTime.from({ year: 5783, monthCode: "M04", day: 1, hour: 12, minute: 34, calendar }, options).add(months2),
5783, 6, "M06", 1, 12, 34, 0, 0, 0, 0, "Adding 2 months to M04 in non-leap year lands in M06 (no M05L)",
"am", 5783
);
const date3 = Temporal.PlainDateTime.from({ year: 5784, monthCode: "M07", day: 1, hour: 12, minute: 34, calendar }, options);
TemporalHelpers.assertPlainDateTime(
date3.add(months1n),
5784, 7, "M06", 1, 12, 34, 0, 0, 0, 0, "Subtracting 1 month from M07 in leap year lands in M06 (Adar II)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date3.add(months2n),
5784, 6, "M05L", 1, 12, 34, 0, 0, 0, 0, "Subtracting 2 months from M07 in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date3.add(new Temporal.Duration(0, -3)),
5784, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Subtracting 3 months from M07 in leap year lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
Temporal.PlainDateTime.from({ year: 5784, monthCode: "M06", day: 1, hour: 12, minute: 34, calendar }).add(months1n),
5784, 6, "M05L", 1, 12, 34, 0, 0, 0, 0, "Subtracting 1 month from M06 (Adar II) in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date2.add(months1n),
5784, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Subtracting 1 month from M05L (Adar I) lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
Temporal.PlainDateTime.from({ year: 5783, monthCode: "M07", day: 1, hour: 12, minute: 34, calendar }).add(months2n),
5783, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Subtracting 2 months from M07 in non-leap year lands in M05 (no M05L)",
"am", 5783
);
// Weeks
// Days
const days10 = new Temporal.Duration(0, 0, 0, /* days = */ 10);
TemporalHelpers.assertPlainDateTime(
Temporal.PlainDateTime.from({ year: 5784, monthCode: "M05L", day: 30, hour: 12, minute: 34, calendar }, options).add(days10),
5784, 7, "M06", 10, 12, 34, 0, 0, 0, 0, "add 10 days to leap day", "am", 5784
);

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test/intl402/Temporal/PlainDateTime/prototype/subtract/basic-hebrew.js vendored Normal file
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// Copyright (C) 2025 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.plaindatetime.prototype.subtract
description: Basic addition and subtraction in the hebrew calendar
features: [Temporal]
includes: [temporalHelpers.js]
---*/
const calendar = "hebrew";
const options = { overflow: "reject" };
// Years
// Months
// Weeks
// Days
const days10 = new Temporal.Duration(0, 0, 0, /* days = */ -10);
TemporalHelpers.assertPlainDateTime(
Temporal.PlainDateTime.from({ year: 5785, monthCode: "M01", day: 1, hour: 12, minute: 34, calendar }, options).subtract(days10),
5785, 1, "M01", 11, 12, 34, 0, 0, 0, 0, "adding 10 days", "am", 5785
);

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test/intl402/Temporal/PlainDateTime/prototype/subtract/leap-months-hebrew.js vendored Normal file
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// Copyright (C) 2025 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.plaindatetime.prototype.subtract
description: Arithmetic around leap months in the hebrew calendar
includes: [temporalHelpers.js]
features: [Temporal, Intl.Era-monthcode]
---*/
const calendar = "hebrew";
const options = { overflow: "reject" };
// Years
// Months
const months1 = new Temporal.Duration(0, -1);
const months1n = new Temporal.Duration(0, 1);
const months2 = new Temporal.Duration(0, -2);
const months2n = new Temporal.Duration(0, 2);
const date1 = Temporal.PlainDateTime.from({ year: 5784, monthCode: "M04", day: 1, hour: 12, minute: 34, calendar }, options);
TemporalHelpers.assertPlainDateTime(
date1.subtract(months1),
5784, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Adding 1 month to M04 in leap year lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date1.subtract(months2),
5784, 6, "M05L", 1, 12, 34, 0, 0, 0, 0, "Adding 2 months to M04 in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date1.subtract(new Temporal.Duration(0, -3)),
5784, 7, "M06", 1, 12, 34, 0, 0, 0, 0, "Adding 3 months to M04 in leap year lands in M06 (Adar II)",
"am", 5784
);
const date2 = Temporal.PlainDateTime.from({ year: 5784, monthCode: "M05L", day: 1, hour: 12, minute: 34, calendar }, options);
TemporalHelpers.assertPlainDateTime(
date2.subtract(months1),
5784, 7, "M06", 1, 12, 34, 0, 0, 0, 0, "Adding 1 month to M05L (Adar I) lands in M06 (Adar II)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
Temporal.PlainDateTime.from({ year: 5783, monthCode: "M04", day: 1, hour: 12, minute: 34, calendar }, options).subtract(months2),
5783, 6, "M06", 1, 12, 34, 0, 0, 0, 0, "Adding 2 months to M04 in non-leap year lands in M06 (no M05L)",
"am", 5783
);
const date3 = Temporal.PlainDateTime.from({ year: 5784, monthCode: "M07", day: 1, hour: 12, minute: 34, calendar }, options);
TemporalHelpers.assertPlainDateTime(
date3.subtract(months1n),
5784, 7, "M06", 1, 12, 34, 0, 0, 0, 0, "Subtracting 1 month from M07 in leap year lands in M06 (Adar II)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date3.subtract(months2n),
5784, 6, "M05L", 1, 12, 34, 0, 0, 0, 0, "Subtracting 2 months from M07 in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date3.subtract(new Temporal.Duration(0, 3)),
5784, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Subtracting 3 months from M07 in leap year lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
Temporal.PlainDateTime.from({ year: 5784, monthCode: "M06", day: 1, hour: 12, minute: 34, calendar }).subtract(months1n),
5784, 6, "M05L", 1, 12, 34, 0, 0, 0, 0, "Subtracting 1 month from M06 (Adar II) in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date2.subtract(months1n),
5784, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Subtracting 1 month from M05L (Adar I) lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
Temporal.PlainDateTime.from({ year: 5783, monthCode: "M07", day: 1, hour: 12, minute: 34, calendar }).subtract(months2n),
5783, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Subtracting 2 months from M07 in non-leap year lands in M05 (no M05L)",
"am", 5783
);
// Weeks
// Days
const days10 = new Temporal.Duration(0, 0, 0, /* days = */ -10);
TemporalHelpers.assertPlainDateTime(
Temporal.PlainDateTime.from({ year: 5784, monthCode: "M05L", day: 30, hour: 12, minute: 34, calendar }, options).subtract(days10),
5784, 7, "M06", 10, 12, 34, 0, 0, 0, 0, "add 10 days to leap day", "am", 5784
);

27
test/intl402/Temporal/ZonedDateTime/prototype/add/basic-hebrew.js vendored Normal file
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// Copyright (C) 2025 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.zoneddatetime.prototype.add
description: Basic addition and subtraction in the hebrew calendar
features: [Temporal]
includes: [temporalHelpers.js]
---*/
const calendar = "hebrew";
const options = { overflow: "reject" };
// Years
// Months
// Weeks
// Days
const days10 = new Temporal.Duration(0, 0, 0, /* days = */ 10);
TemporalHelpers.assertPlainDateTime(
Temporal.ZonedDateTime.from({ year: 5785, monthCode: "M01", day: 1, hour: 12, minute: 34, timeZone: "UTC", calendar }, options).add(days10).toPlainDateTime(),
5785, 1, "M01", 11, 12, 34, 0, 0, 0, 0, "adding 10 days", "am", 5785
);

101
test/intl402/Temporal/ZonedDateTime/prototype/add/leap-months-hebrew.js vendored Normal file
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// Copyright (C) 2025 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.zoneddatetime.prototype.add
description: Arithmetic around leap months in the hebrew calendar
includes: [temporalHelpers.js]
features: [Temporal, Intl.Era-monthcode]
---*/
const calendar = "hebrew";
const options = { overflow: "reject" };
// Years
// Months
const months1 = new Temporal.Duration(0, 1);
const months1n = new Temporal.Duration(0, -1);
const months2 = new Temporal.Duration(0, 2);
const months2n = new Temporal.Duration(0, -2);
const date1 = Temporal.ZonedDateTime.from({ year: 5784, monthCode: "M04", day: 1, hour: 12, minute: 34, timeZone: "UTC", calendar }, options);
TemporalHelpers.assertPlainDateTime(
date1.add(months1).toPlainDateTime(),
5784, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Adding 1 month to M04 in leap year lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date1.add(months2).toPlainDateTime(),
5784, 6, "M05L", 1, 12, 34, 0, 0, 0, 0, "Adding 2 months to M04 in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date1.add(new Temporal.Duration(0, 3)).toPlainDateTime(),
5784, 7, "M06", 1, 12, 34, 0, 0, 0, 0, "Adding 3 months to M04 in leap year lands in M06 (Adar II)",
"am", 5784
);
const date2 = Temporal.ZonedDateTime.from({ year: 5784, monthCode: "M05L", day: 1, hour: 12, minute: 34, timeZone: "UTC", calendar }, options);
TemporalHelpers.assertPlainDateTime(
date2.add(months1).toPlainDateTime(),
5784, 7, "M06", 1, 12, 34, 0, 0, 0, 0, "Adding 1 month to M05L (Adar I) lands in M06 (Adar II)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
Temporal.ZonedDateTime.from({ year: 5783, monthCode: "M04", day: 1, hour: 12, minute: 34, timeZone: "UTC", calendar }, options).add(months2).toPlainDateTime(),
5783, 6, "M06", 1, 12, 34, 0, 0, 0, 0, "Adding 2 months to M04 in non-leap year lands in M06 (no M05L)",
"am", 5783
);
const date3 = Temporal.ZonedDateTime.from({ year: 5784, monthCode: "M07", day: 1, hour: 12, minute: 34, timeZone: "UTC", calendar }, options);
TemporalHelpers.assertPlainDateTime(
date3.add(months1n).toPlainDateTime(),
5784, 7, "M06", 1, 12, 34, 0, 0, 0, 0, "Subtracting 1 month from M07 in leap year lands in M06 (Adar II)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date3.add(months2n).toPlainDateTime(),
5784, 6, "M05L", 1, 12, 34, 0, 0, 0, 0, "Subtracting 2 months from M07 in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date3.add(new Temporal.Duration(0, -3)).toPlainDateTime(),
5784, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Subtracting 3 months from M07 in leap year lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
Temporal.ZonedDateTime.from({ year: 5784, monthCode: "M06", day: 1, hour: 12, minute: 34, timeZone: "UTC", calendar }).add(months1n).toPlainDateTime(),
5784, 6, "M05L", 1, 12, 34, 0, 0, 0, 0, "Subtracting 1 month from M06 (Adar II) in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date2.add(months1n).toPlainDateTime(),
5784, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Subtracting 1 month from M05L (Adar I) lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
Temporal.ZonedDateTime.from({ year: 5783, monthCode: "M07", day: 1, hour: 12, minute: 34, timeZone: "UTC", calendar }).add(months2n).toPlainDateTime(),
5783, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Subtracting 2 months from M07 in non-leap year lands in M05 (no M05L)",
"am", 5783
);
// Weeks
// Days
const days10 = new Temporal.Duration(0, 0, 0, /* days = */ 10);
TemporalHelpers.assertPlainDateTime(
Temporal.ZonedDateTime.from({ year: 5784, monthCode: "M05L", day: 30, hour: 12, minute: 34, timeZone: "UTC", calendar }, options).add(days10).toPlainDateTime(),
5784, 7, "M06", 10, 12, 34, 0, 0, 0, 0, "add 10 days to leap day", "am", 5784
);

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test/intl402/Temporal/ZonedDateTime/prototype/subtract/basic-hebrew.js vendored Normal file
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// Copyright (C) 2025 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.zoneddatetime.prototype.subtract
description: Basic addition and subtraction in the hebrew calendar
features: [Temporal]
includes: [temporalHelpers.js]
---*/
const calendar = "hebrew";
const options = { overflow: "reject" };
// Years
// Months
// Weeks
// Days
const days10 = new Temporal.Duration(0, 0, 0, /* days = */ -10);
TemporalHelpers.assertPlainDateTime(
Temporal.ZonedDateTime.from({ year: 5785, monthCode: "M01", day: 1, hour: 12, minute: 34, timeZone: "UTC", calendar }, options).subtract(days10).toPlainDateTime(),
5785, 1, "M01", 11, 12, 34, 0, 0, 0, 0, "adding 10 days", "am", 5785
);

101
test/intl402/Temporal/ZonedDateTime/prototype/subtract/leap-months-hebrew.js vendored Normal file
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// Copyright (C) 2025 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.zoneddatetime.prototype.subtract
description: Arithmetic around leap months in the hebrew calendar
includes: [temporalHelpers.js]
features: [Temporal, Intl.Era-monthcode]
---*/
const calendar = "hebrew";
const options = { overflow: "reject" };
// Years
// Months
const months1 = new Temporal.Duration(0, -1);
const months1n = new Temporal.Duration(0, 1);
const months2 = new Temporal.Duration(0, -2);
const months2n = new Temporal.Duration(0, 2);
const date1 = Temporal.ZonedDateTime.from({ year: 5784, monthCode: "M04", day: 1, hour: 12, minute: 34, timeZone: "UTC", calendar }, options);
TemporalHelpers.assertPlainDateTime(
date1.subtract(months1).toPlainDateTime(),
5784, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Adding 1 month to M04 in leap year lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date1.subtract(months2).toPlainDateTime(),
5784, 6, "M05L", 1, 12, 34, 0, 0, 0, 0, "Adding 2 months to M04 in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date1.subtract(new Temporal.Duration(0, -3)).toPlainDateTime(),
5784, 7, "M06", 1, 12, 34, 0, 0, 0, 0, "Adding 3 months to M04 in leap year lands in M06 (Adar II)",
"am", 5784
);
const date2 = Temporal.ZonedDateTime.from({ year: 5784, monthCode: "M05L", day: 1, hour: 12, minute: 34, timeZone: "UTC", calendar }, options);
TemporalHelpers.assertPlainDateTime(
date2.subtract(months1).toPlainDateTime(),
5784, 7, "M06", 1, 12, 34, 0, 0, 0, 0, "Adding 1 month to M05L (Adar I) lands in M06 (Adar II)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
Temporal.ZonedDateTime.from({ year: 5783, monthCode: "M04", day: 1, hour: 12, minute: 34, timeZone: "UTC", calendar }, options).subtract(months2).toPlainDateTime(),
5783, 6, "M06", 1, 12, 34, 0, 0, 0, 0, "Adding 2 months to M04 in non-leap year lands in M06 (no M05L)",
"am", 5783
);
const date3 = Temporal.ZonedDateTime.from({ year: 5784, monthCode: "M07", day: 1, hour: 12, minute: 34, timeZone: "UTC", calendar }, options);
TemporalHelpers.assertPlainDateTime(
date3.subtract(months1n).toPlainDateTime(),
5784, 7, "M06", 1, 12, 34, 0, 0, 0, 0, "Subtracting 1 month from M07 in leap year lands in M06 (Adar II)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date3.subtract(months2n).toPlainDateTime(),
5784, 6, "M05L", 1, 12, 34, 0, 0, 0, 0, "Subtracting 2 months from M07 in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date3.subtract(new Temporal.Duration(0, 3)).toPlainDateTime(),
5784, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Subtracting 3 months from M07 in leap year lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
Temporal.ZonedDateTime.from({ year: 5784, monthCode: "M06", day: 1, hour: 12, minute: 34, timeZone: "UTC", calendar }).subtract(months1n).toPlainDateTime(),
5784, 6, "M05L", 1, 12, 34, 0, 0, 0, 0, "Subtracting 1 month from M06 (Adar II) in leap year lands in M05L (Adar I)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
date2.subtract(months1n).toPlainDateTime(),
5784, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Subtracting 1 month from M05L (Adar I) lands in M05 (Shevat)",
"am", 5784
);
TemporalHelpers.assertPlainDateTime(
Temporal.ZonedDateTime.from({ year: 5783, monthCode: "M07", day: 1, hour: 12, minute: 34, timeZone: "UTC", calendar }).subtract(months2n).toPlainDateTime(),
5783, 5, "M05", 1, 12, 34, 0, 0, 0, 0, "Subtracting 2 months from M07 in non-leap year lands in M05 (no M05L)",
"am", 5783
);
// Weeks
// Days
const days10 = new Temporal.Duration(0, 0, 0, /* days = */ -10);
TemporalHelpers.assertPlainDateTime(
Temporal.ZonedDateTime.from({ year: 5784, monthCode: "M05L", day: 30, hour: 12, minute: 34, timeZone: "UTC", calendar }, options).subtract(days10).toPlainDateTime(),
5784, 7, "M06", 10, 12, 34, 0, 0, 0, 0, "add 10 days to leap day", "am", 5784
);