From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- .../intl402/Temporal/PlainDate/compare/shell.js | 2158 ++++++++++++++++++++ 1 file changed, 2158 insertions(+) create mode 100644 js/src/tests/test262/intl402/Temporal/PlainDate/compare/shell.js (limited to 'js/src/tests/test262/intl402/Temporal/PlainDate/compare/shell.js') diff --git a/js/src/tests/test262/intl402/Temporal/PlainDate/compare/shell.js b/js/src/tests/test262/intl402/Temporal/PlainDate/compare/shell.js new file mode 100644 index 0000000000..60f74c2518 --- /dev/null +++ b/js/src/tests/test262/intl402/Temporal/PlainDate/compare/shell.js @@ -0,0 +1,2158 @@ +// GENERATED, DO NOT EDIT +// file: temporalHelpers.js +// Copyright (C) 2021 Igalia, S.L. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +description: | + This defines helper objects and functions for testing Temporal. +defines: [TemporalHelpers] +features: [Symbol.species, Symbol.iterator, Temporal] +---*/ + +const ASCII_IDENTIFIER = /^[$_a-zA-Z][$_a-zA-Z0-9]*$/u; + +function formatPropertyName(propertyKey, objectName = "") { + switch (typeof propertyKey) { + case "symbol": + if (Symbol.keyFor(propertyKey) !== undefined) { + return `${objectName}[Symbol.for('${Symbol.keyFor(propertyKey)}')]`; + } else if (propertyKey.description.startsWith('Symbol.')) { + return `${objectName}[${propertyKey.description}]`; + } else { + return `${objectName}[Symbol('${propertyKey.description}')]` + } + case "string": + if (propertyKey !== String(Number(propertyKey))) { + if (ASCII_IDENTIFIER.test(propertyKey)) { + return objectName ? `${objectName}.${propertyKey}` : propertyKey; + } + return `${objectName}['${propertyKey.replace(/'/g, "\\'")}']` + } + // fall through + default: + // integer or string integer-index + return `${objectName}[${propertyKey}]`; + } +} + +const SKIP_SYMBOL = Symbol("Skip"); + +var TemporalHelpers = { + /* + * Codes and maximum lengths of months in the ISO 8601 calendar. + */ + ISOMonths: [ + { month: 1, monthCode: "M01", daysInMonth: 31 }, + { month: 2, monthCode: "M02", daysInMonth: 29 }, + { month: 3, monthCode: "M03", daysInMonth: 31 }, + { month: 4, monthCode: "M04", daysInMonth: 30 }, + { month: 5, monthCode: "M05", daysInMonth: 31 }, + { month: 6, monthCode: "M06", daysInMonth: 30 }, + { month: 7, monthCode: "M07", daysInMonth: 31 }, + { month: 8, monthCode: "M08", daysInMonth: 31 }, + { month: 9, monthCode: "M09", daysInMonth: 30 }, + { month: 10, monthCode: "M10", daysInMonth: 31 }, + { month: 11, monthCode: "M11", daysInMonth: 30 }, + { month: 12, monthCode: "M12", daysInMonth: 31 } + ], + + /* + * assertDuration(duration, years, ..., nanoseconds[, description]): + * + * Shorthand for asserting that each field of a Temporal.Duration is equal to + * an expected value. + */ + assertDuration(duration, years, months, weeks, days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds, description = "") { + const prefix = description ? `${description}: ` : ""; + assert(duration instanceof Temporal.Duration, `${prefix}instanceof`); + assert.sameValue(duration.years, years, `${prefix}years result:`); + assert.sameValue(duration.months, months, `${prefix}months result:`); + assert.sameValue(duration.weeks, weeks, `${prefix}weeks result:`); + assert.sameValue(duration.days, days, `${prefix}days result:`); + assert.sameValue(duration.hours, hours, `${prefix}hours result:`); + assert.sameValue(duration.minutes, minutes, `${prefix}minutes result:`); + assert.sameValue(duration.seconds, seconds, `${prefix}seconds result:`); + assert.sameValue(duration.milliseconds, milliseconds, `${prefix}milliseconds result:`); + assert.sameValue(duration.microseconds, microseconds, `${prefix}microseconds result:`); + assert.sameValue(duration.nanoseconds, nanoseconds, `${prefix}nanoseconds result`); + }, + + /* + * assertDateDuration(duration, years, months, weeks, days, [, description]): + * + * Shorthand for asserting that each date field of a Temporal.Duration is + * equal to an expected value. + */ + assertDateDuration(duration, years, months, weeks, days, description = "") { + const prefix = description ? `${description}: ` : ""; + assert(duration instanceof Temporal.Duration, `${prefix}instanceof`); + assert.sameValue(duration.years, years, `${prefix}years result:`); + assert.sameValue(duration.months, months, `${prefix}months result:`); + assert.sameValue(duration.weeks, weeks, `${prefix}weeks result:`); + assert.sameValue(duration.days, days, `${prefix}days result:`); + assert.sameValue(duration.hours, 0, `${prefix}hours result should be zero:`); + assert.sameValue(duration.minutes, 0, `${prefix}minutes result should be zero:`); + assert.sameValue(duration.seconds, 0, `${prefix}seconds result should be zero:`); + assert.sameValue(duration.milliseconds, 0, `${prefix}milliseconds result should be zero:`); + assert.sameValue(duration.microseconds, 0, `${prefix}microseconds result should be zero:`); + assert.sameValue(duration.nanoseconds, 0, `${prefix}nanoseconds result should be zero:`); + }, + + /* + * assertDurationsEqual(actual, expected[, description]): + * + * Shorthand for asserting that each field of a Temporal.Duration is equal to + * the corresponding field in another Temporal.Duration. + */ + assertDurationsEqual(actual, expected, description = "") { + const prefix = description ? `${description}: ` : ""; + assert(expected instanceof Temporal.Duration, `${prefix}expected value should be a Temporal.Duration`); + TemporalHelpers.assertDuration(actual, expected.years, expected.months, expected.weeks, expected.days, expected.hours, expected.minutes, expected.seconds, expected.milliseconds, expected.microseconds, expected.nanoseconds, description); + }, + + /* + * assertInstantsEqual(actual, expected[, description]): + * + * Shorthand for asserting that two Temporal.Instants are of the correct type + * and equal according to their equals() methods. + */ + assertInstantsEqual(actual, expected, description = "") { + const prefix = description ? `${description}: ` : ""; + assert(expected instanceof Temporal.Instant, `${prefix}expected value should be a Temporal.Instant`); + assert(actual instanceof Temporal.Instant, `${prefix}instanceof`); + assert(actual.equals(expected), `${prefix}equals method`); + }, + + /* + * assertPlainDate(date, year, ..., nanosecond[, description[, era, eraYear]]): + * + * Shorthand for asserting that each field of a Temporal.PlainDate is equal to + * an expected value. (Except the `calendar` property, since callers may want + * to assert either object equality with an object they put in there, or the + * value of date.calendarId.) + */ + assertPlainDate(date, year, month, monthCode, day, description = "", era = undefined, eraYear = undefined) { + const prefix = description ? `${description}: ` : ""; + assert(date instanceof Temporal.PlainDate, `${prefix}instanceof`); + assert.sameValue(date.era, era, `${prefix}era result:`); + assert.sameValue(date.eraYear, eraYear, `${prefix}eraYear result:`); + assert.sameValue(date.year, year, `${prefix}year result:`); + assert.sameValue(date.month, month, `${prefix}month result:`); + assert.sameValue(date.monthCode, monthCode, `${prefix}monthCode result:`); + assert.sameValue(date.day, day, `${prefix}day result:`); + }, + + /* + * assertPlainDateTime(datetime, year, ..., nanosecond[, description[, era, eraYear]]): + * + * Shorthand for asserting that each field of a Temporal.PlainDateTime is + * equal to an expected value. (Except the `calendar` property, since callers + * may want to assert either object equality with an object they put in there, + * or the value of datetime.calendarId.) + */ + assertPlainDateTime(datetime, year, month, monthCode, day, hour, minute, second, millisecond, microsecond, nanosecond, description = "", era = undefined, eraYear = undefined) { + const prefix = description ? `${description}: ` : ""; + assert(datetime instanceof Temporal.PlainDateTime, `${prefix}instanceof`); + assert.sameValue(datetime.era, era, `${prefix}era result:`); + assert.sameValue(datetime.eraYear, eraYear, `${prefix}eraYear result:`); + assert.sameValue(datetime.year, year, `${prefix}year result:`); + assert.sameValue(datetime.month, month, `${prefix}month result:`); + assert.sameValue(datetime.monthCode, monthCode, `${prefix}monthCode result:`); + assert.sameValue(datetime.day, day, `${prefix}day result:`); + assert.sameValue(datetime.hour, hour, `${prefix}hour result:`); + assert.sameValue(datetime.minute, minute, `${prefix}minute result:`); + assert.sameValue(datetime.second, second, `${prefix}second result:`); + assert.sameValue(datetime.millisecond, millisecond, `${prefix}millisecond result:`); + assert.sameValue(datetime.microsecond, microsecond, `${prefix}microsecond result:`); + assert.sameValue(datetime.nanosecond, nanosecond, `${prefix}nanosecond result:`); + }, + + /* + * assertPlainDateTimesEqual(actual, expected[, description]): + * + * Shorthand for asserting that two Temporal.PlainDateTimes are of the correct + * type, equal according to their equals() methods, and additionally that + * their calendar internal slots are the same value. + */ + assertPlainDateTimesEqual(actual, expected, description = "") { + const prefix = description ? `${description}: ` : ""; + assert(expected instanceof Temporal.PlainDateTime, `${prefix}expected value should be a Temporal.PlainDateTime`); + assert(actual instanceof Temporal.PlainDateTime, `${prefix}instanceof`); + assert(actual.equals(expected), `${prefix}equals method`); + assert.sameValue( + actual.getISOFields().calendar, + expected.getISOFields().calendar, + `${prefix}calendar same value:` + ); + }, + + /* + * assertPlainMonthDay(monthDay, monthCode, day[, description [, referenceISOYear]]): + * + * Shorthand for asserting that each field of a Temporal.PlainMonthDay is + * equal to an expected value. (Except the `calendar` property, since callers + * may want to assert either object equality with an object they put in there, + * or the value of monthDay.calendarId().) + */ + assertPlainMonthDay(monthDay, monthCode, day, description = "", referenceISOYear = 1972) { + const prefix = description ? `${description}: ` : ""; + assert(monthDay instanceof Temporal.PlainMonthDay, `${prefix}instanceof`); + assert.sameValue(monthDay.monthCode, monthCode, `${prefix}monthCode result:`); + assert.sameValue(monthDay.day, day, `${prefix}day result:`); + assert.sameValue(monthDay.getISOFields().isoYear, referenceISOYear, `${prefix}referenceISOYear result:`); + }, + + /* + * assertPlainTime(time, hour, ..., nanosecond[, description]): + * + * Shorthand for asserting that each field of a Temporal.PlainTime is equal to + * an expected value. + */ + assertPlainTime(time, hour, minute, second, millisecond, microsecond, nanosecond, description = "") { + const prefix = description ? `${description}: ` : ""; + assert(time instanceof Temporal.PlainTime, `${prefix}instanceof`); + assert.sameValue(time.hour, hour, `${prefix}hour result:`); + assert.sameValue(time.minute, minute, `${prefix}minute result:`); + assert.sameValue(time.second, second, `${prefix}second result:`); + assert.sameValue(time.millisecond, millisecond, `${prefix}millisecond result:`); + assert.sameValue(time.microsecond, microsecond, `${prefix}microsecond result:`); + assert.sameValue(time.nanosecond, nanosecond, `${prefix}nanosecond result:`); + }, + + /* + * assertPlainTimesEqual(actual, expected[, description]): + * + * Shorthand for asserting that two Temporal.PlainTimes are of the correct + * type and equal according to their equals() methods. + */ + assertPlainTimesEqual(actual, expected, description = "") { + const prefix = description ? `${description}: ` : ""; + assert(expected instanceof Temporal.PlainTime, `${prefix}expected value should be a Temporal.PlainTime`); + assert(actual instanceof Temporal.PlainTime, `${prefix}instanceof`); + assert(actual.equals(expected), `${prefix}equals method`); + }, + + /* + * assertPlainYearMonth(yearMonth, year, month, monthCode[, description[, era, eraYear, referenceISODay]]): + * + * Shorthand for asserting that each field of a Temporal.PlainYearMonth is + * equal to an expected value. (Except the `calendar` property, since callers + * may want to assert either object equality with an object they put in there, + * or the value of yearMonth.calendarId.) + */ + assertPlainYearMonth(yearMonth, year, month, monthCode, description = "", era = undefined, eraYear = undefined, referenceISODay = 1) { + const prefix = description ? `${description}: ` : ""; + assert(yearMonth instanceof Temporal.PlainYearMonth, `${prefix}instanceof`); + assert.sameValue(yearMonth.era, era, `${prefix}era result:`); + assert.sameValue(yearMonth.eraYear, eraYear, `${prefix}eraYear result:`); + assert.sameValue(yearMonth.year, year, `${prefix}year result:`); + assert.sameValue(yearMonth.month, month, `${prefix}month result:`); + assert.sameValue(yearMonth.monthCode, monthCode, `${prefix}monthCode result:`); + assert.sameValue(yearMonth.getISOFields().isoDay, referenceISODay, `${prefix}referenceISODay result:`); + }, + + /* + * assertZonedDateTimesEqual(actual, expected[, description]): + * + * Shorthand for asserting that two Temporal.ZonedDateTimes are of the correct + * type, equal according to their equals() methods, and additionally that + * their time zones and calendar internal slots are the same value. + */ + assertZonedDateTimesEqual(actual, expected, description = "") { + const prefix = description ? `${description}: ` : ""; + assert(expected instanceof Temporal.ZonedDateTime, `${prefix}expected value should be a Temporal.ZonedDateTime`); + assert(actual instanceof Temporal.ZonedDateTime, `${prefix}instanceof`); + assert(actual.equals(expected), `${prefix}equals method`); + assert.sameValue(actual.timeZone, expected.timeZone, `${prefix}time zone same value:`); + assert.sameValue( + actual.getISOFields().calendar, + expected.getISOFields().calendar, + `${prefix}calendar same value:` + ); + }, + + /* + * assertUnreachable(description): + * + * Helper for asserting that code is not executed. This is useful for + * assertions that methods of user calendars and time zones are not called. + */ + assertUnreachable(description) { + let message = "This code should not be executed"; + if (description) { + message = `${message}: ${description}`; + } + throw new Test262Error(message); + }, + + /* + * checkCalendarDateUntilLargestUnitSingular(func, expectedLargestUnitCalls): + * + * When an options object with a largestUnit property is synthesized inside + * Temporal and passed to user code such as calendar.dateUntil(), the value of + * the largestUnit property should be in the singular form, even if the input + * was given in the plural form. + * (This doesn't apply when the options object is passed through verbatim.) + * + * func(calendar, largestUnit, index) is the operation under test. It's called + * with an instance of a calendar that keeps track of which largestUnit is + * passed to dateUntil(), each key of expectedLargestUnitCalls in turn, and + * the key's numerical index in case the function needs to generate test data + * based on the index. At the end, the actual values passed to dateUntil() are + * compared with the array values of expectedLargestUnitCalls. + */ + checkCalendarDateUntilLargestUnitSingular(func, expectedLargestUnitCalls) { + const actual = []; + + class DateUntilOptionsCalendar extends Temporal.Calendar { + constructor() { + super("iso8601"); + } + + dateUntil(earlier, later, options) { + actual.push(options.largestUnit); + return super.dateUntil(earlier, later, options); + } + + toString() { + return "date-until-options"; + } + } + + const calendar = new DateUntilOptionsCalendar(); + Object.entries(expectedLargestUnitCalls).forEach(([largestUnit, expected], index) => { + func(calendar, largestUnit, index); + assert.compareArray(actual, expected, `largestUnit passed to calendar.dateUntil() for largestUnit ${largestUnit}`); + actual.splice(0); // empty it for the next check + }); + }, + + /* + * checkPlainDateTimeConversionFastPath(func): + * + * ToTemporalDate and ToTemporalTime should both, if given a + * Temporal.PlainDateTime instance, convert to the desired type by reading the + * PlainDateTime's internal slots, rather than calling any getters. + * + * func(datetime, calendar) is the actual operation to test, that must + * internally call the abstract operation ToTemporalDate or ToTemporalTime. + * It is passed a Temporal.PlainDateTime instance, as well as the instance's + * calendar object (so that it doesn't have to call the calendar getter itself + * if it wants to make any assertions about the calendar.) + */ + checkPlainDateTimeConversionFastPath(func, message = "checkPlainDateTimeConversionFastPath") { + const actual = []; + const expected = []; + + const calendar = new Temporal.Calendar("iso8601"); + const datetime = new Temporal.PlainDateTime(2000, 5, 2, 12, 34, 56, 987, 654, 321, calendar); + const prototypeDescrs = Object.getOwnPropertyDescriptors(Temporal.PlainDateTime.prototype); + ["year", "month", "monthCode", "day", "hour", "minute", "second", "millisecond", "microsecond", "nanosecond"].forEach((property) => { + Object.defineProperty(datetime, property, { + get() { + actual.push(`get ${formatPropertyName(property)}`); + const value = prototypeDescrs[property].get.call(this); + return { + toString() { + actual.push(`toString ${formatPropertyName(property)}`); + return value.toString(); + }, + valueOf() { + actual.push(`valueOf ${formatPropertyName(property)}`); + return value; + }, + }; + }, + }); + }); + Object.defineProperty(datetime, "calendar", { + get() { + actual.push("get calendar"); + return calendar; + }, + }); + + func(datetime, calendar); + assert.compareArray(actual, expected, `${message}: property getters not called`); + }, + + /* + * Check that an options bag that accepts units written in the singular form, + * also accepts the same units written in the plural form. + * func(unit) should call the method with the appropriate options bag + * containing unit as a value. This will be called twice for each element of + * validSingularUnits, once with singular and once with plural, and the + * results of each pair should be the same (whether a Temporal object or a + * primitive value.) + */ + checkPluralUnitsAccepted(func, validSingularUnits) { + const plurals = { + year: 'years', + month: 'months', + week: 'weeks', + day: 'days', + hour: 'hours', + minute: 'minutes', + second: 'seconds', + millisecond: 'milliseconds', + microsecond: 'microseconds', + nanosecond: 'nanoseconds', + }; + + validSingularUnits.forEach((unit) => { + const singularValue = func(unit); + const pluralValue = func(plurals[unit]); + const desc = `Plural ${plurals[unit]} produces the same result as singular ${unit}`; + if (singularValue instanceof Temporal.Duration) { + TemporalHelpers.assertDurationsEqual(pluralValue, singularValue, desc); + } else if (singularValue instanceof Temporal.Instant) { + TemporalHelpers.assertInstantsEqual(pluralValue, singularValue, desc); + } else if (singularValue instanceof Temporal.PlainDateTime) { + TemporalHelpers.assertPlainDateTimesEqual(pluralValue, singularValue, desc); + } else if (singularValue instanceof Temporal.PlainTime) { + TemporalHelpers.assertPlainTimesEqual(pluralValue, singularValue, desc); + } else if (singularValue instanceof Temporal.ZonedDateTime) { + TemporalHelpers.assertZonedDateTimesEqual(pluralValue, singularValue, desc); + } else { + assert.sameValue(pluralValue, singularValue); + } + }); + }, + + /* + * checkRoundingIncrementOptionWrongType(checkFunc, assertTrueResultFunc, assertObjectResultFunc): + * + * Checks the type handling of the roundingIncrement option. + * checkFunc(roundingIncrement) is a function which takes the value of + * roundingIncrement to test, and calls the method under test with it, + * returning the result. assertTrueResultFunc(result, description) should + * assert that result is the expected result with roundingIncrement: true, and + * assertObjectResultFunc(result, description) should assert that result is + * the expected result with roundingIncrement being an object with a valueOf() + * method. + */ + checkRoundingIncrementOptionWrongType(checkFunc, assertTrueResultFunc, assertObjectResultFunc) { + // null converts to 0, which is out of range + assert.throws(RangeError, () => checkFunc(null), "null"); + // Booleans convert to either 0 or 1, and 1 is allowed + const trueResult = checkFunc(true); + assertTrueResultFunc(trueResult, "true"); + assert.throws(RangeError, () => checkFunc(false), "false"); + // Symbols and BigInts cannot convert to numbers + assert.throws(TypeError, () => checkFunc(Symbol()), "symbol"); + assert.throws(TypeError, () => checkFunc(2n), "bigint"); + + // Objects prefer their valueOf() methods when converting to a number + assert.throws(RangeError, () => checkFunc({}), "plain object"); + + const expected = [ + "get roundingIncrement.valueOf", + "call roundingIncrement.valueOf", + ]; + const actual = []; + const observer = TemporalHelpers.toPrimitiveObserver(actual, 2, "roundingIncrement"); + const objectResult = checkFunc(observer); + assertObjectResultFunc(objectResult, "object with valueOf"); + assert.compareArray(actual, expected, "order of operations"); + }, + + /* + * checkStringOptionWrongType(propertyName, value, checkFunc, assertFunc): + * + * Checks the type handling of a string option, of which there are several in + * Temporal. + * propertyName is the name of the option, and value is the value that + * assertFunc should expect it to have. + * checkFunc(value) is a function which takes the value of the option to test, + * and calls the method under test with it, returning the result. + * assertFunc(result, description) should assert that result is the expected + * result with the option value being an object with a toString() method + * which returns the given value. + */ + checkStringOptionWrongType(propertyName, value, checkFunc, assertFunc) { + // null converts to the string "null", which is an invalid string value + assert.throws(RangeError, () => checkFunc(null), "null"); + // Booleans convert to the strings "true" or "false", which are invalid + assert.throws(RangeError, () => checkFunc(true), "true"); + assert.throws(RangeError, () => checkFunc(false), "false"); + // Symbols cannot convert to strings + assert.throws(TypeError, () => checkFunc(Symbol()), "symbol"); + // Numbers convert to strings which are invalid + assert.throws(RangeError, () => checkFunc(2), "number"); + // BigInts convert to strings which are invalid + assert.throws(RangeError, () => checkFunc(2n), "bigint"); + + // Objects prefer their toString() methods when converting to a string + assert.throws(RangeError, () => checkFunc({}), "plain object"); + + const expected = [ + `get ${propertyName}.toString`, + `call ${propertyName}.toString`, + ]; + const actual = []; + const observer = TemporalHelpers.toPrimitiveObserver(actual, value, propertyName); + const result = checkFunc(observer); + assertFunc(result, "object with toString"); + assert.compareArray(actual, expected, "order of operations"); + }, + + /* + * checkSubclassingIgnored(construct, constructArgs, method, methodArgs, + * resultAssertions): + * + * Methods of Temporal classes that return a new instance of the same class, + * must not take the constructor of a subclass into account, nor the @@species + * property. This helper runs tests to ensure this. + * + * construct(...constructArgs) must yield a valid instance of the Temporal + * class. instance[method](...methodArgs) is the method call under test, which + * must also yield a valid instance of the same Temporal class, not a + * subclass. See below for the individual tests that this runs. + * resultAssertions() is a function that performs additional assertions on the + * instance returned by the method under test. + */ + checkSubclassingIgnored(...args) { + this.checkSubclassConstructorNotObject(...args); + this.checkSubclassConstructorUndefined(...args); + this.checkSubclassConstructorThrows(...args); + this.checkSubclassConstructorNotCalled(...args); + this.checkSubclassSpeciesInvalidResult(...args); + this.checkSubclassSpeciesNotAConstructor(...args); + this.checkSubclassSpeciesNull(...args); + this.checkSubclassSpeciesUndefined(...args); + this.checkSubclassSpeciesThrows(...args); + }, + + /* + * Checks that replacing the 'constructor' property of the instance with + * various primitive values does not affect the returned new instance. + */ + checkSubclassConstructorNotObject(construct, constructArgs, method, methodArgs, resultAssertions) { + function check(value, description) { + const instance = new construct(...constructArgs); + instance.constructor = value; + const result = instance[method](...methodArgs); + assert.sameValue(Object.getPrototypeOf(result), construct.prototype, description); + resultAssertions(result); + } + + check(null, "null"); + check(true, "true"); + check("test", "string"); + check(Symbol(), "Symbol"); + check(7, "number"); + check(7n, "bigint"); + }, + + /* + * Checks that replacing the 'constructor' property of the subclass with + * undefined does not affect the returned new instance. + */ + checkSubclassConstructorUndefined(construct, constructArgs, method, methodArgs, resultAssertions) { + let called = 0; + + class MySubclass extends construct { + constructor() { + ++called; + super(...constructArgs); + } + } + + const instance = new MySubclass(); + assert.sameValue(called, 1); + + MySubclass.prototype.constructor = undefined; + + const result = instance[method](...methodArgs); + assert.sameValue(called, 1); + assert.sameValue(Object.getPrototypeOf(result), construct.prototype); + resultAssertions(result); + }, + + /* + * Checks that making the 'constructor' property of the instance throw when + * called does not affect the returned new instance. + */ + checkSubclassConstructorThrows(construct, constructArgs, method, methodArgs, resultAssertions) { + function CustomError() {} + const instance = new construct(...constructArgs); + Object.defineProperty(instance, "constructor", { + get() { + throw new CustomError(); + } + }); + const result = instance[method](...methodArgs); + assert.sameValue(Object.getPrototypeOf(result), construct.prototype); + resultAssertions(result); + }, + + /* + * Checks that when subclassing, the subclass constructor is not called by + * the method under test. + */ + checkSubclassConstructorNotCalled(construct, constructArgs, method, methodArgs, resultAssertions) { + let called = 0; + + class MySubclass extends construct { + constructor() { + ++called; + super(...constructArgs); + } + } + + const instance = new MySubclass(); + assert.sameValue(called, 1); + + const result = instance[method](...methodArgs); + assert.sameValue(called, 1); + assert.sameValue(Object.getPrototypeOf(result), construct.prototype); + resultAssertions(result); + }, + + /* + * Check that the constructor's @@species property is ignored when it's a + * constructor that returns a non-object value. + */ + checkSubclassSpeciesInvalidResult(construct, constructArgs, method, methodArgs, resultAssertions) { + function check(value, description) { + const instance = new construct(...constructArgs); + instance.constructor = { + [Symbol.species]: function() { + return value; + }, + }; + const result = instance[method](...methodArgs); + assert.sameValue(Object.getPrototypeOf(result), construct.prototype, description); + resultAssertions(result); + } + + check(undefined, "undefined"); + check(null, "null"); + check(true, "true"); + check("test", "string"); + check(Symbol(), "Symbol"); + check(7, "number"); + check(7n, "bigint"); + check({}, "plain object"); + }, + + /* + * Check that the constructor's @@species property is ignored when it's not a + * constructor. + */ + checkSubclassSpeciesNotAConstructor(construct, constructArgs, method, methodArgs, resultAssertions) { + function check(value, description) { + const instance = new construct(...constructArgs); + instance.constructor = { + [Symbol.species]: value, + }; + const result = instance[method](...methodArgs); + assert.sameValue(Object.getPrototypeOf(result), construct.prototype, description); + resultAssertions(result); + } + + check(true, "true"); + check("test", "string"); + check(Symbol(), "Symbol"); + check(7, "number"); + check(7n, "bigint"); + check({}, "plain object"); + }, + + /* + * Check that the constructor's @@species property is ignored when it's null. + */ + checkSubclassSpeciesNull(construct, constructArgs, method, methodArgs, resultAssertions) { + let called = 0; + + class MySubclass extends construct { + constructor() { + ++called; + super(...constructArgs); + } + } + + const instance = new MySubclass(); + assert.sameValue(called, 1); + + MySubclass.prototype.constructor = { + [Symbol.species]: null, + }; + + const result = instance[method](...methodArgs); + assert.sameValue(called, 1); + assert.sameValue(Object.getPrototypeOf(result), construct.prototype); + resultAssertions(result); + }, + + /* + * Check that the constructor's @@species property is ignored when it's + * undefined. + */ + checkSubclassSpeciesUndefined(construct, constructArgs, method, methodArgs, resultAssertions) { + let called = 0; + + class MySubclass extends construct { + constructor() { + ++called; + super(...constructArgs); + } + } + + const instance = new MySubclass(); + assert.sameValue(called, 1); + + MySubclass.prototype.constructor = { + [Symbol.species]: undefined, + }; + + const result = instance[method](...methodArgs); + assert.sameValue(called, 1); + assert.sameValue(Object.getPrototypeOf(result), construct.prototype); + resultAssertions(result); + }, + + /* + * Check that the constructor's @@species property is ignored when it throws, + * i.e. it is not called at all. + */ + checkSubclassSpeciesThrows(construct, constructArgs, method, methodArgs, resultAssertions) { + function CustomError() {} + + const instance = new construct(...constructArgs); + instance.constructor = { + get [Symbol.species]() { + throw new CustomError(); + }, + }; + + const result = instance[method](...methodArgs); + assert.sameValue(Object.getPrototypeOf(result), construct.prototype); + }, + + /* + * checkSubclassingIgnoredStatic(construct, method, methodArgs, resultAssertions): + * + * Static methods of Temporal classes that return a new instance of the class, + * must not use the this-value as a constructor. This helper runs tests to + * ensure this. + * + * construct[method](...methodArgs) is the static method call under test, and + * must yield a valid instance of the Temporal class, not a subclass. See + * below for the individual tests that this runs. + * resultAssertions() is a function that performs additional assertions on the + * instance returned by the method under test. + */ + checkSubclassingIgnoredStatic(...args) { + this.checkStaticInvalidReceiver(...args); + this.checkStaticReceiverNotCalled(...args); + this.checkThisValueNotCalled(...args); + }, + + /* + * Check that calling the static method with a receiver that's not callable, + * still calls the intrinsic constructor. + */ + checkStaticInvalidReceiver(construct, method, methodArgs, resultAssertions) { + function check(value, description) { + const result = construct[method].apply(value, methodArgs); + assert.sameValue(Object.getPrototypeOf(result), construct.prototype); + resultAssertions(result); + } + + check(undefined, "undefined"); + check(null, "null"); + check(true, "true"); + check("test", "string"); + check(Symbol(), "symbol"); + check(7, "number"); + check(7n, "bigint"); + check({}, "Non-callable object"); + }, + + /* + * Check that calling the static method with a receiver that returns a value + * that's not callable, still calls the intrinsic constructor. + */ + checkStaticReceiverNotCalled(construct, method, methodArgs, resultAssertions) { + function check(value, description) { + const receiver = function () { + return value; + }; + const result = construct[method].apply(receiver, methodArgs); + assert.sameValue(Object.getPrototypeOf(result), construct.prototype); + resultAssertions(result); + } + + check(undefined, "undefined"); + check(null, "null"); + check(true, "true"); + check("test", "string"); + check(Symbol(), "symbol"); + check(7, "number"); + check(7n, "bigint"); + check({}, "Non-callable object"); + }, + + /* + * Check that the receiver isn't called. + */ + checkThisValueNotCalled(construct, method, methodArgs, resultAssertions) { + let called = false; + + class MySubclass extends construct { + constructor(...args) { + called = true; + super(...args); + } + } + + const result = MySubclass[method](...methodArgs); + assert.sameValue(called, false); + assert.sameValue(Object.getPrototypeOf(result), construct.prototype); + resultAssertions(result); + }, + + /* + * Check that any iterable returned from a custom time zone's + * getPossibleInstantsFor() method is exhausted. + * The custom time zone object is passed in to func(). + * expected is an array of strings representing the expected calls to the + * getPossibleInstantsFor() method. The PlainDateTimes that it is called with, + * are compared (using their toString() results) with the array. + */ + checkTimeZonePossibleInstantsIterable(func, expected) { + // A custom time zone that returns an iterable instead of an array from its + // getPossibleInstantsFor() method, and for testing purposes skips + // 00:00-01:00 UTC on January 1, 2030, and repeats 00:00-01:00 UTC+1 on + // January 3, 2030. Otherwise identical to the UTC time zone. + class TimeZonePossibleInstantsIterable extends Temporal.TimeZone { + constructor() { + super("UTC"); + this.getPossibleInstantsForCallCount = 0; + this.getPossibleInstantsForCalledWith = []; + this.getPossibleInstantsForReturns = []; + this.iteratorExhausted = []; + } + + toString() { + return "Custom/Iterable"; + } + + getOffsetNanosecondsFor(instant) { + if (Temporal.Instant.compare(instant, "2030-01-01T00:00Z") >= 0 && + Temporal.Instant.compare(instant, "2030-01-03T01:00Z") < 0) { + return 3600_000_000_000; + } else { + return 0; + } + } + + getPossibleInstantsFor(dateTime) { + this.getPossibleInstantsForCallCount++; + this.getPossibleInstantsForCalledWith.push(dateTime); + + // Fake DST transition + let retval = super.getPossibleInstantsFor(dateTime); + if (dateTime.toPlainDate().equals("2030-01-01") && dateTime.hour === 0) { + retval = []; + } else if (dateTime.toPlainDate().equals("2030-01-03") && dateTime.hour === 0) { + retval.push(retval[0].subtract({ hours: 1 })); + } else if (dateTime.year === 2030 && dateTime.month === 1 && dateTime.day >= 1 && dateTime.day <= 2) { + retval[0] = retval[0].subtract({ hours: 1 }); + } + + this.getPossibleInstantsForReturns.push(retval); + this.iteratorExhausted.push(false); + return { + callIndex: this.getPossibleInstantsForCallCount - 1, + timeZone: this, + *[Symbol.iterator]() { + yield* this.timeZone.getPossibleInstantsForReturns[this.callIndex]; + this.timeZone.iteratorExhausted[this.callIndex] = true; + }, + }; + } + } + + const timeZone = new TimeZonePossibleInstantsIterable(); + func(timeZone); + + assert.sameValue(timeZone.getPossibleInstantsForCallCount, expected.length, "getPossibleInstantsFor() method called correct number of times"); + + for (let index = 0; index < expected.length; index++) { + assert.sameValue(timeZone.getPossibleInstantsForCalledWith[index].toString(), expected[index], "getPossibleInstantsFor() called with expected PlainDateTime"); + assert(timeZone.iteratorExhausted[index], "iterated through the whole iterable"); + } + }, + + /* + * Check that any calendar-carrying Temporal object has its [[Calendar]] + * internal slot read by ToTemporalCalendar, and does not fetch the calendar + * by calling getters. + * The custom calendar object is passed in to func() so that it can do its + * own additional assertions involving the calendar if necessary. (Sometimes + * there is nothing to assert as the calendar isn't stored anywhere that can + * be asserted about.) + */ + checkToTemporalCalendarFastPath(func) { + class CalendarFastPathCheck extends Temporal.Calendar { + constructor() { + super("iso8601"); + } + + dateFromFields(...args) { + return super.dateFromFields(...args).withCalendar(this); + } + + monthDayFromFields(...args) { + const { isoYear, isoMonth, isoDay } = super.monthDayFromFields(...args).getISOFields(); + return new Temporal.PlainMonthDay(isoMonth, isoDay, this, isoYear); + } + + yearMonthFromFields(...args) { + const { isoYear, isoMonth, isoDay } = super.yearMonthFromFields(...args).getISOFields(); + return new Temporal.PlainYearMonth(isoYear, isoMonth, this, isoDay); + } + + toString() { + return "fast-path-check"; + } + } + const calendar = new CalendarFastPathCheck(); + + const plainDate = new Temporal.PlainDate(2000, 5, 2, calendar); + const plainDateTime = new Temporal.PlainDateTime(2000, 5, 2, 12, 34, 56, 987, 654, 321, calendar); + const plainMonthDay = new Temporal.PlainMonthDay(5, 2, calendar); + const plainYearMonth = new Temporal.PlainYearMonth(2000, 5, calendar); + const zonedDateTime = new Temporal.ZonedDateTime(1_000_000_000_000_000_000n, "UTC", calendar); + + [plainDate, plainDateTime, plainMonthDay, plainYearMonth, zonedDateTime].forEach((temporalObject) => { + const actual = []; + const expected = []; + + Object.defineProperty(temporalObject, "calendar", { + get() { + actual.push("get calendar"); + return calendar; + }, + }); + + func(temporalObject, calendar); + assert.compareArray(actual, expected, "calendar getter not called"); + }); + }, + + checkToTemporalInstantFastPath(func) { + const actual = []; + const expected = []; + + const datetime = new Temporal.ZonedDateTime(1_000_000_000_987_654_321n, "UTC"); + Object.defineProperty(datetime, 'toString', { + get() { + actual.push("get toString"); + return function (options) { + actual.push("call toString"); + return Temporal.ZonedDateTime.prototype.toString.call(this, options); + }; + }, + }); + + func(datetime); + assert.compareArray(actual, expected, "toString not called"); + }, + + checkToTemporalPlainDateTimeFastPath(func) { + const actual = []; + const expected = []; + + const calendar = new Temporal.Calendar("iso8601"); + const date = new Temporal.PlainDate(2000, 5, 2, calendar); + const prototypeDescrs = Object.getOwnPropertyDescriptors(Temporal.PlainDate.prototype); + ["year", "month", "monthCode", "day"].forEach((property) => { + Object.defineProperty(date, property, { + get() { + actual.push(`get ${formatPropertyName(property)}`); + const value = prototypeDescrs[property].get.call(this); + return TemporalHelpers.toPrimitiveObserver(actual, value, property); + }, + }); + }); + ["hour", "minute", "second", "millisecond", "microsecond", "nanosecond"].forEach((property) => { + Object.defineProperty(date, property, { + get() { + actual.push(`get ${formatPropertyName(property)}`); + return undefined; + }, + }); + }); + Object.defineProperty(date, "calendar", { + get() { + actual.push("get calendar"); + return calendar; + }, + }); + + func(date, calendar); + assert.compareArray(actual, expected, "property getters not called"); + }, + + /* + * A custom calendar used in prototype pollution checks. Verifies that the + * fromFields methods are always called with a null-prototype fields object. + */ + calendarCheckFieldsPrototypePollution() { + class CalendarCheckFieldsPrototypePollution extends Temporal.Calendar { + constructor() { + super("iso8601"); + this.dateFromFieldsCallCount = 0; + this.yearMonthFromFieldsCallCount = 0; + this.monthDayFromFieldsCallCount = 0; + } + + // toString must remain "iso8601", so that some methods don't throw due to + // incompatible calendars + + dateFromFields(fields, options = {}) { + this.dateFromFieldsCallCount++; + assert.sameValue(Object.getPrototypeOf(fields), null, "dateFromFields should be called with null-prototype fields object"); + return super.dateFromFields(fields, options); + } + + yearMonthFromFields(fields, options = {}) { + this.yearMonthFromFieldsCallCount++; + assert.sameValue(Object.getPrototypeOf(fields), null, "yearMonthFromFields should be called with null-prototype fields object"); + return super.yearMonthFromFields(fields, options); + } + + monthDayFromFields(fields, options = {}) { + this.monthDayFromFieldsCallCount++; + assert.sameValue(Object.getPrototypeOf(fields), null, "monthDayFromFields should be called with null-prototype fields object"); + return super.monthDayFromFields(fields, options); + } + } + + return new CalendarCheckFieldsPrototypePollution(); + }, + + /* + * A custom calendar used in prototype pollution checks. Verifies that the + * mergeFields() method is always called with null-prototype fields objects. + */ + calendarCheckMergeFieldsPrototypePollution() { + class CalendarCheckMergeFieldsPrototypePollution extends Temporal.Calendar { + constructor() { + super("iso8601"); + this.mergeFieldsCallCount = 0; + } + + toString() { + return "merge-fields-null-proto"; + } + + mergeFields(fields, additionalFields) { + this.mergeFieldsCallCount++; + assert.sameValue(Object.getPrototypeOf(fields), null, "mergeFields should be called with null-prototype fields object (first argument)"); + assert.sameValue(Object.getPrototypeOf(additionalFields), null, "mergeFields should be called with null-prototype fields object (second argument)"); + return super.mergeFields(fields, additionalFields); + } + } + + return new CalendarCheckMergeFieldsPrototypePollution(); + }, + + /* + * A custom calendar used in prototype pollution checks. Verifies that methods + * are always called with a null-prototype options object. + */ + calendarCheckOptionsPrototypePollution() { + class CalendarCheckOptionsPrototypePollution extends Temporal.Calendar { + constructor() { + super("iso8601"); + this.yearMonthFromFieldsCallCount = 0; + this.dateUntilCallCount = 0; + } + + toString() { + return "options-null-proto"; + } + + yearMonthFromFields(fields, options) { + this.yearMonthFromFieldsCallCount++; + assert.sameValue(Object.getPrototypeOf(options), null, "yearMonthFromFields should be called with null-prototype options"); + return super.yearMonthFromFields(fields, options); + } + + dateUntil(one, two, options) { + this.dateUntilCallCount++; + assert.sameValue(Object.getPrototypeOf(options), null, "dateUntil should be called with null-prototype options"); + return super.dateUntil(one, two, options); + } + } + + return new CalendarCheckOptionsPrototypePollution(); + }, + + /* + * A custom calendar that asserts its dateAdd() method is called with the + * options parameter having the value undefined. + */ + calendarDateAddUndefinedOptions() { + class CalendarDateAddUndefinedOptions extends Temporal.Calendar { + constructor() { + super("iso8601"); + this.dateAddCallCount = 0; + } + + toString() { + return "dateadd-undef-options"; + } + + dateAdd(date, duration, options) { + this.dateAddCallCount++; + assert.sameValue(options, undefined, "dateAdd shouldn't be called with options"); + return super.dateAdd(date, duration, options); + } + } + return new CalendarDateAddUndefinedOptions(); + }, + + /* + * A custom calendar that asserts its dateAdd() method is called with a + * PlainDate instance. Optionally, it also asserts that the PlainDate instance + * is the specific object `this.specificPlainDate`, if it is set by the + * calling code. + */ + calendarDateAddPlainDateInstance() { + class CalendarDateAddPlainDateInstance extends Temporal.Calendar { + constructor() { + super("iso8601"); + this.dateAddCallCount = 0; + this.specificPlainDate = undefined; + } + + toString() { + return "dateadd-plain-date-instance"; + } + + dateFromFields(...args) { + return super.dateFromFields(...args).withCalendar(this); + } + + dateAdd(date, duration, options) { + this.dateAddCallCount++; + assert(date instanceof Temporal.PlainDate, "dateAdd() should be called with a PlainDate instance"); + if (this.dateAddCallCount === 1 && this.specificPlainDate) { + assert.sameValue(date, this.specificPlainDate, `dateAdd() should be called first with the specific PlainDate instance ${this.specificPlainDate}`); + } + return super.dateAdd(date, duration, options).withCalendar(this); + } + } + return new CalendarDateAddPlainDateInstance(); + }, + + /* + * A custom calendar that returns an iterable instead of an array from its + * fields() method, otherwise identical to the ISO calendar. + */ + calendarFieldsIterable() { + class CalendarFieldsIterable extends Temporal.Calendar { + constructor() { + super("iso8601"); + this.fieldsCallCount = 0; + this.fieldsCalledWith = []; + this.iteratorExhausted = []; + } + + toString() { + return "fields-iterable"; + } + + fields(fieldNames) { + this.fieldsCallCount++; + this.fieldsCalledWith.push(fieldNames.slice()); + this.iteratorExhausted.push(false); + return { + callIndex: this.fieldsCallCount - 1, + calendar: this, + *[Symbol.iterator]() { + yield* this.calendar.fieldsCalledWith[this.callIndex]; + this.calendar.iteratorExhausted[this.callIndex] = true; + }, + }; + } + } + return new CalendarFieldsIterable(); + }, + + /* + * A custom calendar that asserts its ...FromFields() methods are called with + * the options parameter having the value undefined. + */ + calendarFromFieldsUndefinedOptions() { + class CalendarFromFieldsUndefinedOptions extends Temporal.Calendar { + constructor() { + super("iso8601"); + this.dateFromFieldsCallCount = 0; + this.monthDayFromFieldsCallCount = 0; + this.yearMonthFromFieldsCallCount = 0; + } + + toString() { + return "from-fields-undef-options"; + } + + dateFromFields(fields, options) { + this.dateFromFieldsCallCount++; + assert.sameValue(options, undefined, "dateFromFields shouldn't be called with options"); + return super.dateFromFields(fields, options); + } + + yearMonthFromFields(fields, options) { + this.yearMonthFromFieldsCallCount++; + assert.sameValue(options, undefined, "yearMonthFromFields shouldn't be called with options"); + return super.yearMonthFromFields(fields, options); + } + + monthDayFromFields(fields, options) { + this.monthDayFromFieldsCallCount++; + assert.sameValue(options, undefined, "monthDayFromFields shouldn't be called with options"); + return super.monthDayFromFields(fields, options); + } + } + return new CalendarFromFieldsUndefinedOptions(); + }, + + /* + * A custom calendar that modifies the fields object passed in to + * dateFromFields, sabotaging its time properties. + */ + calendarMakeInfinityTime() { + class CalendarMakeInfinityTime extends Temporal.Calendar { + constructor() { + super("iso8601"); + } + + dateFromFields(fields, options) { + const retval = super.dateFromFields(fields, options); + fields.hour = Infinity; + fields.minute = Infinity; + fields.second = Infinity; + fields.millisecond = Infinity; + fields.microsecond = Infinity; + fields.nanosecond = Infinity; + return retval; + } + } + return new CalendarMakeInfinityTime(); + }, + + /* + * A custom calendar that defines getters on the fields object passed into + * dateFromFields that throw, sabotaging its time properties. + */ + calendarMakeInvalidGettersTime() { + class CalendarMakeInvalidGettersTime extends Temporal.Calendar { + constructor() { + super("iso8601"); + } + + dateFromFields(fields, options) { + const retval = super.dateFromFields(fields, options); + const throwingDescriptor = { + get() { + throw new Test262Error("reading a sabotaged time field"); + }, + }; + Object.defineProperties(fields, { + hour: throwingDescriptor, + minute: throwingDescriptor, + second: throwingDescriptor, + millisecond: throwingDescriptor, + microsecond: throwingDescriptor, + nanosecond: throwingDescriptor, + }); + return retval; + } + } + return new CalendarMakeInvalidGettersTime(); + }, + + /* + * A custom calendar whose mergeFields() method returns a proxy object with + * all of its Get and HasProperty operations observable, as well as adding a + * "shouldNotBeCopied": true property. + */ + calendarMergeFieldsGetters() { + class CalendarMergeFieldsGetters extends Temporal.Calendar { + constructor() { + super("iso8601"); + this.mergeFieldsReturnOperations = []; + } + + toString() { + return "merge-fields-getters"; + } + + dateFromFields(fields, options) { + assert.sameValue(fields.shouldNotBeCopied, undefined, "extra fields should not be copied"); + return super.dateFromFields(fields, options); + } + + yearMonthFromFields(fields, options) { + assert.sameValue(fields.shouldNotBeCopied, undefined, "extra fields should not be copied"); + return super.yearMonthFromFields(fields, options); + } + + monthDayFromFields(fields, options) { + assert.sameValue(fields.shouldNotBeCopied, undefined, "extra fields should not be copied"); + return super.monthDayFromFields(fields, options); + } + + mergeFields(fields, additionalFields) { + const retval = super.mergeFields(fields, additionalFields); + retval._calendar = this; + retval.shouldNotBeCopied = true; + return new Proxy(retval, { + get(target, key) { + target._calendar.mergeFieldsReturnOperations.push(`get ${key}`); + const result = target[key]; + if (result === undefined) { + return undefined; + } + return TemporalHelpers.toPrimitiveObserver(target._calendar.mergeFieldsReturnOperations, result, key); + }, + has(target, key) { + target._calendar.mergeFieldsReturnOperations.push(`has ${key}`); + return key in target; + }, + }); + } + } + return new CalendarMergeFieldsGetters(); + }, + + /* + * A custom calendar whose mergeFields() method returns a primitive value, + * given by @primitive, and which records the number of calls made to its + * dateFromFields(), yearMonthFromFields(), and monthDayFromFields() methods. + */ + calendarMergeFieldsReturnsPrimitive(primitive) { + class CalendarMergeFieldsPrimitive extends Temporal.Calendar { + constructor(mergeFieldsReturnValue) { + super("iso8601"); + this._mergeFieldsReturnValue = mergeFieldsReturnValue; + this.dateFromFieldsCallCount = 0; + this.monthDayFromFieldsCallCount = 0; + this.yearMonthFromFieldsCallCount = 0; + } + + toString() { + return "merge-fields-primitive"; + } + + dateFromFields(fields, options) { + this.dateFromFieldsCallCount++; + return super.dateFromFields(fields, options); + } + + yearMonthFromFields(fields, options) { + this.yearMonthFromFieldsCallCount++; + return super.yearMonthFromFields(fields, options); + } + + monthDayFromFields(fields, options) { + this.monthDayFromFieldsCallCount++; + return super.monthDayFromFields(fields, options); + } + + mergeFields() { + return this._mergeFieldsReturnValue; + } + } + return new CalendarMergeFieldsPrimitive(primitive); + }, + + /* + * A custom calendar whose fields() method returns the same value as the + * iso8601 calendar, with the addition of extraFields provided as parameter. + */ + calendarWithExtraFields(fields) { + class CalendarWithExtraFields extends Temporal.Calendar { + constructor(extraFields) { + super("iso8601"); + this._extraFields = extraFields; + } + + fields(fieldNames) { + return super.fields(fieldNames).concat(this._extraFields); + } + } + + return new CalendarWithExtraFields(fields); + }, + + /* + * crossDateLineTimeZone(): + * + * This returns an instance of a custom time zone class that implements one + * single transition where the time zone moves from one side of the + * International Date Line to the other, for the purpose of testing time zone + * calculations without depending on system time zone data. + * + * The transition occurs at epoch second 1325239200 and goes from offset + * -10:00 to +14:00. In other words, the time zone skips the whole calendar + * day of 2011-12-30. This is the same as the real-life transition in the + * Pacific/Apia time zone. + */ + crossDateLineTimeZone() { + const { compare } = Temporal.PlainDate; + const skippedDay = new Temporal.PlainDate(2011, 12, 30); + const transitionEpoch = 1325239200_000_000_000n; + const beforeOffset = new Temporal.TimeZone("-10:00"); + const afterOffset = new Temporal.TimeZone("+14:00"); + + class CrossDateLineTimeZone extends Temporal.TimeZone { + constructor() { + super("+14:00"); + } + + getOffsetNanosecondsFor(instant) { + if (instant.epochNanoseconds < transitionEpoch) { + return beforeOffset.getOffsetNanosecondsFor(instant); + } + return afterOffset.getOffsetNanosecondsFor(instant); + } + + getPossibleInstantsFor(datetime) { + const comparison = compare(datetime.toPlainDate(), skippedDay); + if (comparison === 0) { + return []; + } + if (comparison < 0) { + return [beforeOffset.getInstantFor(datetime)]; + } + return [afterOffset.getInstantFor(datetime)]; + } + + getPreviousTransition(instant) { + if (instant.epochNanoseconds > transitionEpoch) return new Temporal.Instant(transitionEpoch); + return null; + } + + getNextTransition(instant) { + if (instant.epochNanoseconds < transitionEpoch) return new Temporal.Instant(transitionEpoch); + return null; + } + + toString() { + return "Custom/Date_Line"; + } + } + return new CrossDateLineTimeZone(); + }, + + /* + * observeProperty(calls, object, propertyName, value): + * + * Defines an own property @object.@propertyName with value @value, that + * will log any calls to its accessors to the array @calls. + */ + observeProperty(calls, object, propertyName, value, objectName = "") { + Object.defineProperty(object, propertyName, { + get() { + calls.push(`get ${formatPropertyName(propertyName, objectName)}`); + return value; + }, + set(v) { + calls.push(`set ${formatPropertyName(propertyName, objectName)}`); + } + }); + }, + + /* + * observeMethod(calls, object, propertyName, value): + * + * Defines an own property @object.@propertyName with value @value, that + * will log any calls of @value to the array @calls. + */ + observeMethod(calls, object, propertyName, objectName = "") { + const method = object[propertyName]; + object[propertyName] = function () { + calls.push(`call ${formatPropertyName(propertyName, objectName)}`); + return method.apply(object, arguments); + }; + }, + + /* + * Used for substituteMethod to indicate default behavior instead of a + * substituted value + */ + SUBSTITUTE_SKIP: SKIP_SYMBOL, + + /* + * substituteMethod(object, propertyName, values): + * + * Defines an own property @object.@propertyName that will, for each + * subsequent call to the method previously defined as + * @object.@propertyName: + * - Call the method, if no more values remain + * - Call the method, if the value in @values for the corresponding call + * is SUBSTITUTE_SKIP + * - Otherwise, return the corresponding value in @value + */ + substituteMethod(object, propertyName, values) { + let calls = 0; + const method = object[propertyName]; + object[propertyName] = function () { + if (calls >= values.length) { + return method.apply(object, arguments); + } else if (values[calls] === SKIP_SYMBOL) { + calls++; + return method.apply(object, arguments); + } else { + return values[calls++]; + } + }; + }, + + /* + * calendarObserver: + * A custom calendar that behaves exactly like the ISO 8601 calendar but + * tracks calls to any of its methods, and Get/Has operations on its + * properties, by appending messages to an array. This is for the purpose of + * testing order of operations that are observable from user code. + * objectName is used in the log. + */ + calendarObserver(calls, objectName, methodOverrides = {}) { + function removeExtraHasPropertyChecks(objectName, calls) { + // Inserting the tracking calendar into the return values of methods + // that we chain up into the ISO calendar for, causes extra HasProperty + // checks, which we observe. This removes them so that we don't leak + // implementation details of the helper into the test code. + assert.sameValue(calls.pop(), `has ${objectName}.yearOfWeek`); + assert.sameValue(calls.pop(), `has ${objectName}.yearMonthFromFields`); + assert.sameValue(calls.pop(), `has ${objectName}.year`); + assert.sameValue(calls.pop(), `has ${objectName}.weekOfYear`); + assert.sameValue(calls.pop(), `has ${objectName}.monthsInYear`); + assert.sameValue(calls.pop(), `has ${objectName}.monthDayFromFields`); + assert.sameValue(calls.pop(), `has ${objectName}.monthCode`); + assert.sameValue(calls.pop(), `has ${objectName}.month`); + assert.sameValue(calls.pop(), `has ${objectName}.mergeFields`); + assert.sameValue(calls.pop(), `has ${objectName}.inLeapYear`); + assert.sameValue(calls.pop(), `has ${objectName}.id`); + assert.sameValue(calls.pop(), `has ${objectName}.fields`); + assert.sameValue(calls.pop(), `has ${objectName}.daysInYear`); + assert.sameValue(calls.pop(), `has ${objectName}.daysInWeek`); + assert.sameValue(calls.pop(), `has ${objectName}.daysInMonth`); + assert.sameValue(calls.pop(), `has ${objectName}.dayOfYear`); + assert.sameValue(calls.pop(), `has ${objectName}.dayOfWeek`); + assert.sameValue(calls.pop(), `has ${objectName}.day`); + assert.sameValue(calls.pop(), `has ${objectName}.dateUntil`); + assert.sameValue(calls.pop(), `has ${objectName}.dateFromFields`); + assert.sameValue(calls.pop(), `has ${objectName}.dateAdd`); + } + + const iso8601 = new Temporal.Calendar("iso8601"); + const trackingMethods = { + dateFromFields(...args) { + calls.push(`call ${objectName}.dateFromFields`); + if ('dateFromFields' in methodOverrides) { + const value = methodOverrides.dateFromFields; + return typeof value === "function" ? value(...args) : value; + } + const originalResult = iso8601.dateFromFields(...args); + // Replace the calendar in the result with the call-tracking calendar + const {isoYear, isoMonth, isoDay} = originalResult.getISOFields(); + const result = new Temporal.PlainDate(isoYear, isoMonth, isoDay, this); + removeExtraHasPropertyChecks(objectName, calls); + return result; + }, + yearMonthFromFields(...args) { + calls.push(`call ${objectName}.yearMonthFromFields`); + if ('yearMonthFromFields' in methodOverrides) { + const value = methodOverrides.yearMonthFromFields; + return typeof value === "function" ? value(...args) : value; + } + const originalResult = iso8601.yearMonthFromFields(...args); + // Replace the calendar in the result with the call-tracking calendar + const {isoYear, isoMonth, isoDay} = originalResult.getISOFields(); + const result = new Temporal.PlainYearMonth(isoYear, isoMonth, this, isoDay); + removeExtraHasPropertyChecks(objectName, calls); + return result; + }, + monthDayFromFields(...args) { + calls.push(`call ${objectName}.monthDayFromFields`); + if ('monthDayFromFields' in methodOverrides) { + const value = methodOverrides.monthDayFromFields; + return typeof value === "function" ? value(...args) : value; + } + const originalResult = iso8601.monthDayFromFields(...args); + // Replace the calendar in the result with the call-tracking calendar + const {isoYear, isoMonth, isoDay} = originalResult.getISOFields(); + const result = new Temporal.PlainMonthDay(isoMonth, isoDay, this, isoYear); + removeExtraHasPropertyChecks(objectName, calls); + return result; + }, + dateAdd(...args) { + calls.push(`call ${objectName}.dateAdd`); + if ('dateAdd' in methodOverrides) { + const value = methodOverrides.dateAdd; + return typeof value === "function" ? value(...args) : value; + } + const originalResult = iso8601.dateAdd(...args); + const {isoYear, isoMonth, isoDay} = originalResult.getISOFields(); + const result = new Temporal.PlainDate(isoYear, isoMonth, isoDay, this); + removeExtraHasPropertyChecks(objectName, calls); + return result; + }, + id: "iso8601", + }; + // Automatically generate the other methods that don't need any custom code + [ + "dateUntil", + "day", + "dayOfWeek", + "dayOfYear", + "daysInMonth", + "daysInWeek", + "daysInYear", + "era", + "eraYear", + "fields", + "inLeapYear", + "mergeFields", + "month", + "monthCode", + "monthsInYear", + "toString", + "weekOfYear", + "year", + "yearOfWeek", + ].forEach((methodName) => { + trackingMethods[methodName] = function (...args) { + calls.push(`call ${formatPropertyName(methodName, objectName)}`); + if (methodName in methodOverrides) { + const value = methodOverrides[methodName]; + return typeof value === "function" ? value(...args) : value; + } + return iso8601[methodName](...args); + }; + }); + return new Proxy(trackingMethods, { + get(target, key, receiver) { + const result = Reflect.get(target, key, receiver); + calls.push(`get ${formatPropertyName(key, objectName)}`); + return result; + }, + has(target, key) { + calls.push(`has ${formatPropertyName(key, objectName)}`); + return Reflect.has(target, key); + }, + }); + }, + + /* + * A custom calendar that does not allow any of its methods to be called, for + * the purpose of asserting that a particular operation does not call into + * user code. + */ + calendarThrowEverything() { + class CalendarThrowEverything extends Temporal.Calendar { + constructor() { + super("iso8601"); + } + toString() { + TemporalHelpers.assertUnreachable("toString should not be called"); + } + dateFromFields() { + TemporalHelpers.assertUnreachable("dateFromFields should not be called"); + } + yearMonthFromFields() { + TemporalHelpers.assertUnreachable("yearMonthFromFields should not be called"); + } + monthDayFromFields() { + TemporalHelpers.assertUnreachable("monthDayFromFields should not be called"); + } + dateAdd() { + TemporalHelpers.assertUnreachable("dateAdd should not be called"); + } + dateUntil() { + TemporalHelpers.assertUnreachable("dateUntil should not be called"); + } + era() { + TemporalHelpers.assertUnreachable("era should not be called"); + } + eraYear() { + TemporalHelpers.assertUnreachable("eraYear should not be called"); + } + year() { + TemporalHelpers.assertUnreachable("year should not be called"); + } + month() { + TemporalHelpers.assertUnreachable("month should not be called"); + } + monthCode() { + TemporalHelpers.assertUnreachable("monthCode should not be called"); + } + day() { + TemporalHelpers.assertUnreachable("day should not be called"); + } + fields() { + TemporalHelpers.assertUnreachable("fields should not be called"); + } + mergeFields() { + TemporalHelpers.assertUnreachable("mergeFields should not be called"); + } + } + + return new CalendarThrowEverything(); + }, + + /* + * oneShiftTimeZone(shiftInstant, shiftNanoseconds): + * + * In the case of a spring-forward time zone offset transition (skipped time), + * and disambiguation === 'earlier', BuiltinTimeZoneGetInstantFor subtracts a + * negative number of nanoseconds from a PlainDateTime, which should balance + * with the microseconds field. + * + * This returns an instance of a custom time zone class which skips a length + * of time equal to shiftNanoseconds (a number), at the Temporal.Instant + * shiftInstant. Before shiftInstant, it's identical to UTC, and after + * shiftInstant it's a constant-offset time zone. + * + * It provides a getPossibleInstantsForCalledWith member which is an array + * with the result of calling toString() on any PlainDateTimes passed to + * getPossibleInstantsFor(). + */ + oneShiftTimeZone(shiftInstant, shiftNanoseconds) { + class OneShiftTimeZone extends Temporal.TimeZone { + constructor(shiftInstant, shiftNanoseconds) { + super("+00:00"); + this._shiftInstant = shiftInstant; + this._epoch1 = shiftInstant.epochNanoseconds; + this._epoch2 = this._epoch1 + BigInt(shiftNanoseconds); + this._shiftNanoseconds = shiftNanoseconds; + this._shift = new Temporal.Duration(0, 0, 0, 0, 0, 0, 0, 0, 0, this._shiftNanoseconds); + this.getPossibleInstantsForCalledWith = []; + } + + _isBeforeShift(instant) { + return instant.epochNanoseconds < this._epoch1; + } + + getOffsetNanosecondsFor(instant) { + return this._isBeforeShift(instant) ? 0 : this._shiftNanoseconds; + } + + getPossibleInstantsFor(plainDateTime) { + this.getPossibleInstantsForCalledWith.push(plainDateTime.toString({ calendarName: "never" })); + const [instant] = super.getPossibleInstantsFor(plainDateTime); + if (this._shiftNanoseconds > 0) { + if (this._isBeforeShift(instant)) return [instant]; + if (instant.epochNanoseconds < this._epoch2) return []; + return [instant.subtract(this._shift)]; + } + if (instant.epochNanoseconds < this._epoch2) return [instant]; + const shifted = instant.subtract(this._shift); + if (this._isBeforeShift(instant)) return [instant, shifted]; + return [shifted]; + } + + getNextTransition(instant) { + return this._isBeforeShift(instant) ? this._shiftInstant : null; + } + + getPreviousTransition(instant) { + return this._isBeforeShift(instant) ? null : this._shiftInstant; + } + + toString() { + return "Custom/One_Shift"; + } + } + return new OneShiftTimeZone(shiftInstant, shiftNanoseconds); + }, + + /* + * propertyBagObserver(): + * Returns an object that behaves like the given propertyBag but tracks Get + * and Has operations on any of its properties, by appending messages to an + * array. If the value of a property in propertyBag is a primitive, the value + * of the returned object's property will additionally be a + * TemporalHelpers.toPrimitiveObserver that will track calls to its toString + * and valueOf methods in the same array. This is for the purpose of testing + * order of operations that are observable from user code. objectName is used + * in the log. + */ + propertyBagObserver(calls, propertyBag, objectName) { + return new Proxy(propertyBag, { + ownKeys(target) { + calls.push(`ownKeys ${objectName}`); + return Reflect.ownKeys(target); + }, + getOwnPropertyDescriptor(target, key) { + calls.push(`getOwnPropertyDescriptor ${formatPropertyName(key, objectName)}`); + return Reflect.getOwnPropertyDescriptor(target, key); + }, + get(target, key, receiver) { + calls.push(`get ${formatPropertyName(key, objectName)}`); + const result = Reflect.get(target, key, receiver); + if (result === undefined) { + return undefined; + } + if ((result !== null && typeof result === "object") || typeof result === "function") { + return result; + } + return TemporalHelpers.toPrimitiveObserver(calls, result, `${formatPropertyName(key, objectName)}`); + }, + has(target, key) { + calls.push(`has ${formatPropertyName(key, objectName)}`); + return Reflect.has(target, key); + }, + }); + }, + + /* + * specificOffsetTimeZone(): + * + * This returns an instance of a custom time zone class, which returns a + * specific custom value from its getOffsetNanosecondsFrom() method. This is + * for the purpose of testing the validation of what this method returns. + * + * It also returns an empty array from getPossibleInstantsFor(), so as to + * trigger calls to getOffsetNanosecondsFor() when used from the + * BuiltinTimeZoneGetInstantFor operation. + */ + specificOffsetTimeZone(offsetValue) { + class SpecificOffsetTimeZone extends Temporal.TimeZone { + constructor(offsetValue) { + super("UTC"); + this._offsetValue = offsetValue; + } + + getOffsetNanosecondsFor() { + return this._offsetValue; + } + + getPossibleInstantsFor(dt) { + if (typeof this._offsetValue !== 'number' || Math.abs(this._offsetValue) >= 86400e9 || isNaN(this._offsetValue)) return []; + const zdt = dt.toZonedDateTime("UTC").add({ nanoseconds: -this._offsetValue }); + return [zdt.toInstant()]; + } + + get id() { + return this.getOffsetStringFor(new Temporal.Instant(0n)); + } + } + return new SpecificOffsetTimeZone(offsetValue); + }, + + /* + * springForwardFallBackTimeZone(): + * + * This returns an instance of a custom time zone class that implements one + * single spring-forward/fall-back transition, for the purpose of testing the + * disambiguation option, without depending on system time zone data. + * + * The spring-forward occurs at epoch second 954669600 (2000-04-02T02:00 + * local) and goes from offset -08:00 to -07:00. + * + * The fall-back occurs at epoch second 972810000 (2000-10-29T02:00 local) and + * goes from offset -07:00 to -08:00. + */ + springForwardFallBackTimeZone() { + const { compare } = Temporal.PlainDateTime; + const springForwardLocal = new Temporal.PlainDateTime(2000, 4, 2, 2); + const springForwardEpoch = 954669600_000_000_000n; + const fallBackLocal = new Temporal.PlainDateTime(2000, 10, 29, 1); + const fallBackEpoch = 972810000_000_000_000n; + const winterOffset = new Temporal.TimeZone('-08:00'); + const summerOffset = new Temporal.TimeZone('-07:00'); + + class SpringForwardFallBackTimeZone extends Temporal.TimeZone { + constructor() { + super("-08:00"); + } + + getOffsetNanosecondsFor(instant) { + if (instant.epochNanoseconds < springForwardEpoch || + instant.epochNanoseconds >= fallBackEpoch) { + return winterOffset.getOffsetNanosecondsFor(instant); + } + return summerOffset.getOffsetNanosecondsFor(instant); + } + + getPossibleInstantsFor(datetime) { + if (compare(datetime, springForwardLocal) >= 0 && compare(datetime, springForwardLocal.add({ hours: 1 })) < 0) { + return []; + } + if (compare(datetime, fallBackLocal) >= 0 && compare(datetime, fallBackLocal.add({ hours: 1 })) < 0) { + return [summerOffset.getInstantFor(datetime), winterOffset.getInstantFor(datetime)]; + } + if (compare(datetime, springForwardLocal) < 0 || compare(datetime, fallBackLocal) >= 0) { + return [winterOffset.getInstantFor(datetime)]; + } + return [summerOffset.getInstantFor(datetime)]; + } + + getPreviousTransition(instant) { + if (instant.epochNanoseconds > fallBackEpoch) return new Temporal.Instant(fallBackEpoch); + if (instant.epochNanoseconds > springForwardEpoch) return new Temporal.Instant(springForwardEpoch); + return null; + } + + getNextTransition(instant) { + if (instant.epochNanoseconds < springForwardEpoch) return new Temporal.Instant(springForwardEpoch); + if (instant.epochNanoseconds < fallBackEpoch) return new Temporal.Instant(fallBackEpoch); + return null; + } + + get id() { + return "Custom/Spring_Fall"; + } + + toString() { + return "Custom/Spring_Fall"; + } + } + return new SpringForwardFallBackTimeZone(); + }, + + /* + * timeZoneObserver: + * A custom calendar that behaves exactly like the UTC time zone but tracks + * calls to any of its methods, and Get/Has operations on its properties, by + * appending messages to an array. This is for the purpose of testing order of + * operations that are observable from user code. objectName is used in the + * log. methodOverrides is an optional object containing properties with the + * same name as Temporal.TimeZone methods. If the property value is a function + * it will be called with the proper arguments instead of the UTC method. + * Otherwise, the property value will be returned directly. + */ + timeZoneObserver(calls, objectName, methodOverrides = {}) { + const utc = new Temporal.TimeZone("UTC"); + const trackingMethods = { + id: "UTC", + }; + // Automatically generate the methods + ["getOffsetNanosecondsFor", "getPossibleInstantsFor", "toString"].forEach((methodName) => { + trackingMethods[methodName] = function (...args) { + calls.push(`call ${formatPropertyName(methodName, objectName)}`); + if (methodName in methodOverrides) { + const value = methodOverrides[methodName]; + return typeof value === "function" ? value(...args) : value; + } + return utc[methodName](...args); + }; + }); + return new Proxy(trackingMethods, { + get(target, key, receiver) { + const result = Reflect.get(target, key, receiver); + calls.push(`get ${formatPropertyName(key, objectName)}`); + return result; + }, + has(target, key) { + calls.push(`has ${formatPropertyName(key, objectName)}`); + return Reflect.has(target, key); + }, + }); + }, + + /* + * A custom time zone that does not allow any of its methods to be called, for + * the purpose of asserting that a particular operation does not call into + * user code. + */ + timeZoneThrowEverything() { + class TimeZoneThrowEverything extends Temporal.TimeZone { + constructor() { + super("UTC"); + } + getOffsetNanosecondsFor() { + TemporalHelpers.assertUnreachable("getOffsetNanosecondsFor should not be called"); + } + getPossibleInstantsFor() { + TemporalHelpers.assertUnreachable("getPossibleInstantsFor should not be called"); + } + toString() { + TemporalHelpers.assertUnreachable("toString should not be called"); + } + } + + return new TimeZoneThrowEverything(); + }, + + /* + * Returns an object that will append logs of any Gets or Calls of its valueOf + * or toString properties to the array calls. Both valueOf and toString will + * return the actual primitiveValue. propertyName is used in the log. + */ + toPrimitiveObserver(calls, primitiveValue, propertyName) { + return { + get valueOf() { + calls.push(`get ${propertyName}.valueOf`); + return function () { + calls.push(`call ${propertyName}.valueOf`); + return primitiveValue; + }; + }, + get toString() { + calls.push(`get ${propertyName}.toString`); + return function () { + calls.push(`call ${propertyName}.toString`); + if (primitiveValue === undefined) return undefined; + return primitiveValue.toString(); + }; + }, + }; + }, + + /* + * An object containing further methods that return arrays of ISO strings, for + * testing parsers. + */ + ISO: { + /* + * PlainMonthDay strings that are not valid. + */ + plainMonthDayStringsInvalid() { + return [ + "11-18junk", + "11-18[u-ca=gregory]", + "11-18[u-ca=hebrew]", + ]; + }, + + /* + * PlainMonthDay strings that are valid and that should produce October 1st. + */ + plainMonthDayStringsValid() { + return [ + "10-01", + "1001", + "1965-10-01", + "1976-10-01T152330.1+00:00", + "19761001T15:23:30.1+00:00", + "1976-10-01T15:23:30.1+0000", + "1976-10-01T152330.1+0000", + "19761001T15:23:30.1+0000", + "19761001T152330.1+00:00", + "19761001T152330.1+0000", + "+001976-10-01T152330.1+00:00", + "+0019761001T15:23:30.1+00:00", + "+001976-10-01T15:23:30.1+0000", + "+001976-10-01T152330.1+0000", + "+0019761001T15:23:30.1+0000", + "+0019761001T152330.1+00:00", + "+0019761001T152330.1+0000", + "1976-10-01T15:23:00", + "1976-10-01T15:23", + "1976-10-01T15", + "1976-10-01", + "--10-01", + "--1001", + ]; + }, + + /* + * PlainTime strings that may be mistaken for PlainMonthDay or + * PlainYearMonth strings, and so require a time designator. + */ + plainTimeStringsAmbiguous() { + const ambiguousStrings = [ + "2021-12", // ambiguity between YYYY-MM and HHMM-UU + "2021-12[-12:00]", // ditto, TZ does not disambiguate + "1214", // ambiguity between MMDD and HHMM + "0229", // ditto, including MMDD that doesn't occur every year + "1130", // ditto, including DD that doesn't occur in every month + "12-14", // ambiguity between MM-DD and HH-UU + "12-14[-14:00]", // ditto, TZ does not disambiguate + "202112", // ambiguity between YYYYMM and HHMMSS + "202112[UTC]", // ditto, TZ does not disambiguate + ]; + // Adding a calendar annotation to one of these strings must not cause + // disambiguation in favour of time. + const stringsWithCalendar = ambiguousStrings.map((s) => s + '[u-ca=iso8601]'); + return ambiguousStrings.concat(stringsWithCalendar); + }, + + /* + * PlainTime strings that are of similar form to PlainMonthDay and + * PlainYearMonth strings, but are not ambiguous due to components that + * aren't valid as months or days. + */ + plainTimeStringsUnambiguous() { + return [ + "2021-13", // 13 is not a month + "202113", // ditto + "2021-13[-13:00]", // ditto + "202113[-13:00]", // ditto + "0000-00", // 0 is not a month + "000000", // ditto + "0000-00[UTC]", // ditto + "000000[UTC]", // ditto + "1314", // 13 is not a month + "13-14", // ditto + "1232", // 32 is not a day + "0230", // 30 is not a day in February + "0631", // 31 is not a day in June + "0000", // 0 is neither a month nor a day + "00-00", // ditto + ]; + }, + + /* + * PlainYearMonth-like strings that are not valid. + */ + plainYearMonthStringsInvalid() { + return [ + "2020-13", + ]; + }, + + /* + * PlainYearMonth-like strings that are valid and should produce November + * 1976 in the ISO 8601 calendar. + */ + plainYearMonthStringsValid() { + return [ + "1976-11", + "1976-11-10", + "1976-11-01T09:00:00+00:00", + "1976-11-01T00:00:00+05:00", + "197611", + "+00197611", + "1976-11-18T15:23:30.1\u221202:00", + "1976-11-18T152330.1+00:00", + "19761118T15:23:30.1+00:00", + "1976-11-18T15:23:30.1+0000", + "1976-11-18T152330.1+0000", + "19761118T15:23:30.1+0000", + "19761118T152330.1+00:00", + "19761118T152330.1+0000", + "+001976-11-18T152330.1+00:00", + "+0019761118T15:23:30.1+00:00", + "+001976-11-18T15:23:30.1+0000", + "+001976-11-18T152330.1+0000", + "+0019761118T15:23:30.1+0000", + "+0019761118T152330.1+00:00", + "+0019761118T152330.1+0000", + "1976-11-18T15:23", + "1976-11-18T15", + "1976-11-18", + ]; + }, + + /* + * PlainYearMonth-like strings that are valid and should produce November of + * the ISO year -9999. + */ + plainYearMonthStringsValidNegativeYear() { + return [ + "\u2212009999-11", + ]; + }, + } +}; -- cgit v1.2.3