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LibJS: Implement Temporal.PlainDate.prototype.until
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describe("correct behavior", () => {
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test("length is 1", () => {
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expect(Temporal.PlainDate.prototype.until).toHaveLength(1);
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});
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test("basic functionality", () => {
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const dateOne = new Temporal.PlainDate(2021, 11, 14);
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const dateTwo = new Temporal.PlainDate(2022, 12, 25);
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const untilDuration = dateOne.until(dateTwo);
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expect(untilDuration.years).toBe(0);
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expect(untilDuration.months).toBe(0);
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expect(untilDuration.weeks).toBe(0);
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expect(untilDuration.days).toBe(406);
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expect(untilDuration.hours).toBe(0);
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expect(untilDuration.minutes).toBe(0);
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expect(untilDuration.seconds).toBe(0);
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expect(untilDuration.milliseconds).toBe(0);
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expect(untilDuration.microseconds).toBe(0);
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expect(untilDuration.nanoseconds).toBe(0);
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});
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test("equal dates", () => {
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const equalDateOne = new Temporal.PlainDate(1, 1, 1);
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const equalDateTwo = new Temporal.PlainDate(1, 1, 1);
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const checkResults = result => {
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expect(result.years).toBe(0);
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expect(result.months).toBe(0);
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expect(result.weeks).toBe(0);
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expect(result.days).toBe(0);
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expect(result.hours).toBe(0);
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expect(result.minutes).toBe(0);
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expect(result.seconds).toBe(0);
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expect(result.milliseconds).toBe(0);
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expect(result.microseconds).toBe(0);
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expect(result.nanoseconds).toBe(0);
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};
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checkResults(equalDateOne.until(equalDateOne));
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checkResults(equalDateTwo.until(equalDateTwo));
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checkResults(equalDateOne.until(equalDateTwo));
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checkResults(equalDateTwo.until(equalDateOne));
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});
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test("negative direction", () => {
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const dateOne = new Temporal.PlainDate(2021, 11, 14);
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const dateTwo = new Temporal.PlainDate(2022, 12, 25);
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const untilDuration = dateTwo.until(dateOne);
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expect(untilDuration.years).toBe(0);
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expect(untilDuration.months).toBe(0);
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expect(untilDuration.weeks).toBe(0);
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expect(untilDuration.days).toBe(-406);
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expect(untilDuration.hours).toBe(0);
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expect(untilDuration.minutes).toBe(0);
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expect(untilDuration.seconds).toBe(0);
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expect(untilDuration.milliseconds).toBe(0);
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expect(untilDuration.microseconds).toBe(0);
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expect(untilDuration.nanoseconds).toBe(0);
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});
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test("largestUnit option", () => {
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const values = [
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["year", { years: 1, months: 1, days: 11 }],
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["month", { months: 13, days: 11 }],
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["week", { weeks: 58 }],
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["day", { days: 406 }],
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];
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const dateOne = new Temporal.PlainDate(2021, 11, 14);
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const dateTwo = new Temporal.PlainDate(2022, 12, 25);
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for (const [largestUnit, durationLike] of values) {
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const singularOptions = { largestUnit };
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const pluralOptions = { largestUnit: `${largestUnit}s` };
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const propertiesToCheck = Object.keys(durationLike);
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// Positive direction
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const positiveSingularResult = dateOne.until(dateTwo, singularOptions);
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for (const property of propertiesToCheck)
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expect(positiveSingularResult[property]).toBe(durationLike[property]);
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const positivePluralResult = dateOne.until(dateTwo, pluralOptions);
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for (const property of propertiesToCheck)
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expect(positivePluralResult[property]).toBe(durationLike[property]);
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// Negative direction
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const negativeSingularResult = dateTwo.until(dateOne, singularOptions);
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for (const property of propertiesToCheck)
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expect(negativeSingularResult[property]).toBe(-durationLike[property]);
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const negativePluralResult = dateTwo.until(dateOne, pluralOptions);
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for (const property of propertiesToCheck)
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expect(negativePluralResult[property]).toBe(-durationLike[property]);
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}
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});
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// FIXME: Unskip when plain date string parsing is implemented.
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test.skip("PlainDate string argument", () => {
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const dateOne = new Temporal.PlainDate(2021, 11, 14);
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const untilDuration = dateOne.until("2022-12-25");
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expect(untilDuration.years).toBe(0);
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expect(untilDuration.months).toBe(0);
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expect(untilDuration.weeks).toBe(0);
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expect(untilDuration.days).toBe(406);
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expect(untilDuration.hours).toBe(0);
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expect(untilDuration.minutes).toBe(0);
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expect(untilDuration.seconds).toBe(0);
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expect(untilDuration.milliseconds).toBe(0);
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expect(untilDuration.microseconds).toBe(0);
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expect(untilDuration.nanoseconds).toBe(0);
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});
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});
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describe("errors", () => {
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test("this value must be a Temporal.PlainDate object", () => {
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expect(() => {
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Temporal.PlainDate.prototype.until.call("foo");
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}).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
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});
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test("cannot compare dates from different calendars", () => {
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const calendarOne = {
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toString() {
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return "calendarOne";
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},
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};
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const calendarTwo = {
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toString() {
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return "calendarTwo";
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},
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};
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const dateOneWithCalendar = new Temporal.PlainDate(2021, 11, 14, calendarOne);
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const dateTwoWithCalendar = new Temporal.PlainDate(2022, 12, 25, calendarTwo);
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expect(() => {
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dateOneWithCalendar.until(dateTwoWithCalendar);
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}).toThrowWithMessage(RangeError, "Cannot compare dates from two different calendars");
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});
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test("disallowed units", () => {
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const dateOne = new Temporal.PlainDate(2021, 11, 14);
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const dateTwo = new Temporal.PlainDate(2022, 12, 25);
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const disallowedUnits = [
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"hour",
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"minute",
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"second",
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"millisecond",
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"microsecond",
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"nanosecond",
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];
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for (const smallestUnit of disallowedUnits) {
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const singularSmallestUnitOptions = { smallestUnit };
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const pluralSmallestUnitOptions = { smallestUnit: `${smallestUnit}s` };
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expect(() => {
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dateOne.until(dateTwo, singularSmallestUnitOptions);
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}).toThrowWithMessage(
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RangeError,
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`${smallestUnit} is not a valid value for option smallestUnit`
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);
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expect(() => {
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dateOne.until(dateTwo, pluralSmallestUnitOptions);
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}).toThrowWithMessage(
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RangeError,
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`${smallestUnit} is not a valid value for option smallestUnit`
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);
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}
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for (const largestUnit of disallowedUnits) {
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const singularLargestUnitOptions = { largestUnit };
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const pluralLargestUnitOptions = { largestUnit: `${largestUnit}s` };
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expect(() => {
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dateOne.until(dateTwo, singularLargestUnitOptions);
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}).toThrowWithMessage(
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RangeError,
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`${largestUnit} is not a valid value for option largestUnit`
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);
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expect(() => {
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dateOne.until(dateTwo, pluralLargestUnitOptions);
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}).toThrowWithMessage(
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RangeError,
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`${largestUnit} is not a valid value for option largestUnit`
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);
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}
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});
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test("invalid unit range", () => {
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// smallestUnit -> disallowed largestUnits, see validate_temporal_unit_range
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// Note that all the "smallestUnits" are all the allowedUnits.
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const invalidRanges = [
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["year", ["month", "week", "day"]],
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["month", ["week", "day"]],
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["week", ["day"]],
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];
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const dateOne = new Temporal.PlainDate(2021, 11, 14);
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const dateTwo = new Temporal.PlainDate(2022, 12, 25);
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for (const [smallestUnit, disallowedLargestUnits] of invalidRanges) {
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const pluralSmallestUnit = `${smallestUnit}s`;
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for (const disallowedUnit of disallowedLargestUnits) {
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const pluralDisallowedUnit = `${disallowedUnit}s`;
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const singularSmallestSingularDisallowedOptions = {
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smallestUnit,
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largestUnit: disallowedUnit,
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};
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const singularSmallestPluralDisallowedOptions = {
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smallestUnit,
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largestUnit: pluralDisallowedUnit,
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};
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const pluralSmallestSingularDisallowedOptions = {
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smallestUnit: pluralSmallestUnit,
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largestUnit: disallowedUnit,
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};
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const pluralSmallestPluralDisallowedOptions = {
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smallestUnit: pluralSmallestUnit,
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largestUnit: disallowedUnit,
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};
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expect(() => {
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dateOne.until(dateTwo, singularSmallestSingularDisallowedOptions);
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}).toThrowWithMessage(
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RangeError,
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`Invalid unit range, ${smallestUnit} is larger than ${disallowedUnit}`
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);
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expect(() => {
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dateOne.until(dateTwo, singularSmallestPluralDisallowedOptions);
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}).toThrowWithMessage(
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RangeError,
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`Invalid unit range, ${smallestUnit} is larger than ${disallowedUnit}`
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);
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expect(() => {
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dateOne.until(dateTwo, pluralSmallestSingularDisallowedOptions);
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}).toThrowWithMessage(
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RangeError,
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`Invalid unit range, ${smallestUnit} is larger than ${disallowedUnit}`
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);
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expect(() => {
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dateOne.until(dateTwo, pluralSmallestPluralDisallowedOptions);
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}).toThrowWithMessage(
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RangeError,
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`Invalid unit range, ${smallestUnit} is larger than ${disallowedUnit}`
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);
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}
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}
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});
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});
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