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LibJS: Implement Intl.DateTimeFormat.prototype.formatRange
This commit is contained in:
Timothy Flynn
Linus Groh
parent
1f35eda37b
commit
04f8fb07e1
7 changed files with 591 additions and 28 deletions
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describe("errors", () => {
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test("called on non-DateTimeFormat object", () => {
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expect(() => {
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Intl.DateTimeFormat.prototype.formatRange(1, 2);
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}).toThrowWithMessage(TypeError, "Not an object of type Intl.DateTimeFormat");
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});
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test("called with undefined values", () => {
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expect(() => {
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Intl.DateTimeFormat().formatRange();
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}).toThrowWithMessage(TypeError, "startDate is undefined");
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expect(() => {
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Intl.DateTimeFormat().formatRange(1);
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}).toThrowWithMessage(TypeError, "endDate is undefined");
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});
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test("called with values that cannot be converted to numbers", () => {
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expect(() => {
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Intl.DateTimeFormat().formatRange(1, Symbol.hasInstance);
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}).toThrowWithMessage(TypeError, "Cannot convert symbol to number");
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expect(() => {
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Intl.DateTimeFormat().formatRange(1n, 1);
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}).toThrowWithMessage(TypeError, "Cannot convert BigInt to number");
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});
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test("time value cannot be clipped", () => {
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[NaN, -8.65e15, 8.65e15].forEach(d => {
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expect(() => {
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Intl.DateTimeFormat().formatRange(d, 1);
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}).toThrowWithMessage(RangeError, "Time value must be between -8.64E15 and 8.64E15");
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expect(() => {
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Intl.DateTimeFormat().formatRange(1, d);
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}).toThrowWithMessage(RangeError, "Time value must be between -8.64E15 and 8.64E15");
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});
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});
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test("called with values in bad order", () => {
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expect(() => {
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Intl.DateTimeFormat().formatRange(new Date(2021), new Date(1989));
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}).toThrowWithMessage(RangeError, "Start time 2021 is after end time 1989");
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});
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});
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const d0 = Date.UTC(1989, 0, 23, 7, 8, 9, 45);
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const d1 = Date.UTC(2021, 11, 7, 17, 40, 50, 456);
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describe("equal dates are squashed", () => {
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test("with date fields", () => {
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const en = new Intl.DateTimeFormat("en", {
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year: "numeric",
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month: "long",
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day: "2-digit",
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});
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expect(en.formatRange(d0, d0)).toBe("January 23, 1989");
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expect(en.formatRange(d1, d1)).toBe("December 07, 2021");
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const ja = new Intl.DateTimeFormat("ja", {
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year: "numeric",
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month: "long",
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day: "2-digit",
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});
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expect(ja.formatRange(d0, d0)).toBe("1989/1月/23");
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expect(ja.formatRange(d1, d1)).toBe("2021/12月/07");
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});
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test("with time fields", () => {
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const en = new Intl.DateTimeFormat("en", {
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hour: "numeric",
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minute: "2-digit",
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second: "2-digit",
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timeZone: "UTC",
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});
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expect(en.formatRange(d0, d0)).toBe("7:08:09 AM");
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expect(en.formatRange(d1, d1)).toBe("5:40:50 PM");
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const ja = new Intl.DateTimeFormat("ja", {
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hour: "numeric",
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minute: "2-digit",
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second: "2-digit",
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timeZone: "UTC",
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});
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expect(ja.formatRange(d0, d0)).toBe("7:08:09");
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expect(ja.formatRange(d1, d1)).toBe("17:40:50");
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});
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test("with mixed fields", () => {
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const en = new Intl.DateTimeFormat("en", {
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year: "numeric",
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month: "long",
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day: "2-digit",
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hour: "numeric",
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minute: "2-digit",
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second: "2-digit",
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timeZone: "UTC",
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});
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expect(en.formatRange(d0, d0)).toBe("January 23, 1989 at 7:08:09 AM");
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expect(en.formatRange(d1, d1)).toBe("December 07, 2021 at 5:40:50 PM");
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const ja = new Intl.DateTimeFormat("ja", {
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year: "numeric",
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month: "long",
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day: "2-digit",
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hour: "numeric",
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minute: "2-digit",
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second: "2-digit",
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timeZone: "UTC",
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});
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expect(ja.formatRange(d0, d0)).toBe("1989/1月/23 7:08:09");
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expect(ja.formatRange(d1, d1)).toBe("2021/12月/07 17:40:50");
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});
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test("with date/time style fields", () => {
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const en = new Intl.DateTimeFormat("en", {
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dateStyle: "full",
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timeStyle: "medium",
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timeZone: "UTC",
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});
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expect(en.formatRange(d0, d0)).toBe("Monday, January 23, 1989 at 7:08:09 AM");
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expect(en.formatRange(d1, d1)).toBe("Tuesday, December 7, 2021 at 5:40:50 PM");
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const ja = new Intl.DateTimeFormat("ja", {
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dateStyle: "full",
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timeStyle: "medium",
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timeZone: "UTC",
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});
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expect(ja.formatRange(d0, d0)).toBe("1989年1月23日月曜日 7:08:09");
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expect(ja.formatRange(d1, d1)).toBe("2021年12月7日火曜日 17:40:50");
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});
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});
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describe("dateStyle", () => {
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// prettier-ignore
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const data = [
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{ date: "full", en: "Monday, January 23, 1989 – Tuesday, December 7, 2021", ja: "1989年1月23日月曜日～2021年12月7日火曜日" },
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{ date: "long", en: "January 23, 1989 – December 7, 2021", ja: "1989/01/23～2021/12/07" },
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{ date: "medium", en: "Jan 23, 1989 – Dec 7, 2021", ja: "1989/01/23～2021/12/07" },
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{ date: "short", en: "1/23/89 – 12/7/21", ja: "1989/01/23～2021/12/07" },
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];
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test("all", () => {
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data.forEach(d => {
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const en = new Intl.DateTimeFormat("en", { dateStyle: d.date });
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expect(en.formatRange(d0, d1)).toBe(d.en);
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// If this test is to be changed, take care to note the "long" style for the ja locale is an intentionally
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// chosen complex test case. The format pattern is "y年M月d日" and its skeleton is "yMd" - note that the
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// month field has a numeric style. However, the interval patterns that match the "yMd" skeleton are all
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// "y/MM/dd～y/MM/dd" - the month field there conflicts with a 2-digit style. This exercises the step in the
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// FormatDateTimePattern AO to choose the style from rangeFormatOptions instead of dateTimeFormat (step 15.f.i
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// as of when this test was written).
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const ja = new Intl.DateTimeFormat("ja", { dateStyle: d.date });
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expect(ja.formatRange(d0, d1)).toBe(d.ja);
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});
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});
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});
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describe("timeStyle", () => {
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// prettier-ignore
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const data = [
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// FIXME: These results should include the date, even though it isn't requested, because the start/end dates
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// are more than just hours apart. See the FIXME in PartitionDateTimeRangePattern.
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{ time: "full", en: "7:08:09 AM Coordinated Universal Time – 5:40:50 PM Coordinated Universal Time", ja: "7時08分09秒 協定世界時～17時40分50秒 協定世界時" },
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{ time: "long", en: "7:08:09 AM UTC – 5:40:50 PM UTC", ja: "7:08:09 UTC～17:40:50 UTC" },
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{ time: "medium", en: "7:08:09 AM – 5:40:50 PM", ja: "7:08:09～17:40:50" },
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{ time: "short", en: "7:08 AM – 5:40 PM", ja: "7:08～17:40" },
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];
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test("all", () => {
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data.forEach(d => {
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const en = new Intl.DateTimeFormat("en", { timeStyle: d.time, timeZone: "UTC" });
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expect(en.formatRange(d0, d1)).toBe(d.en);
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const ja = new Intl.DateTimeFormat("ja", { timeStyle: d.time, timeZone: "UTC" });
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expect(ja.formatRange(d0, d1)).toBe(d.ja);
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});
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});
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});
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describe("dateStyle + timeStyle", () => {
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// prettier-ignore
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const data = [
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{ date: "full", time: "full", en: "Monday, January 23, 1989 at 7:08:09 AM Coordinated Universal Time – Tuesday, December 7, 2021 at 5:40:50 PM Coordinated Universal Time", ja: "1989年1月23日月曜日 7時08分09秒 協定世界時～2021年12月7日火曜日 17時40分50秒 協定世界時" },
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{ date: "full", time: "long", en: "Monday, January 23, 1989 at 7:08:09 AM UTC – Tuesday, December 7, 2021 at 5:40:50 PM UTC", ja: "1989年1月23日月曜日 7:08:09 UTC～2021年12月7日火曜日 17:40:50 UTC" },
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{ date: "full", time: "medium", en: "Monday, January 23, 1989 at 7:08:09 AM – Tuesday, December 7, 2021 at 5:40:50 PM", ja: "1989年1月23日月曜日 7:08:09～2021年12月7日火曜日 17:40:50" },
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{ date: "full", time: "short", en: "Monday, January 23, 1989 at 7:08 AM – Tuesday, December 7, 2021 at 5:40 PM", ja: "1989年1月23日月曜日 7:08～2021年12月7日火曜日 17:40" },
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{ date: "long", time: "full", en: "January 23, 1989 at 7:08:09 AM Coordinated Universal Time – December 7, 2021 at 5:40:50 PM Coordinated Universal Time", ja: "1989年1月23日 7時08分09秒 協定世界時～2021年12月7日 17時40分50秒 協定世界時" },
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{ date: "long", time: "long", en: "January 23, 1989 at 7:08:09 AM UTC – December 7, 2021 at 5:40:50 PM UTC", ja: "1989年1月23日 7:08:09 UTC～2021年12月7日 17:40:50 UTC" },
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{ date: "long", time: "medium", en: "January 23, 1989 at 7:08:09 AM – December 7, 2021 at 5:40:50 PM", ja: "1989年1月23日 7:08:09～2021年12月7日 17:40:50" },
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{ date: "long", time: "short", en: "January 23, 1989 at 7:08 AM – December 7, 2021 at 5:40 PM", ja: "1989年1月23日 7:08～2021年12月7日 17:40" },
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{ date: "medium", time: "full", en: "Jan 23, 1989, 7:08:09 AM Coordinated Universal Time – Dec 7, 2021, 5:40:50 PM Coordinated Universal Time", ja: "1989/01/23 7時08分09秒 協定世界時～2021/12/07 17時40分50秒 協定世界時" },
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{ date: "medium", time: "long", en: "Jan 23, 1989, 7:08:09 AM UTC – Dec 7, 2021, 5:40:50 PM UTC", ja: "1989/01/23 7:08:09 UTC～2021/12/07 17:40:50 UTC" },
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{ date: "medium", time: "medium", en: "Jan 23, 1989, 7:08:09 AM – Dec 7, 2021, 5:40:50 PM", ja: "1989/01/23 7:08:09～2021/12/07 17:40:50" },
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{ date: "medium", time: "short", en: "Jan 23, 1989, 7:08 AM – Dec 7, 2021, 5:40 PM", ja: "1989/01/23 7:08～2021/12/07 17:40" },
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{ date: "short", time: "full", en: "1/23/89, 7:08:09 AM Coordinated Universal Time – 12/7/21, 5:40:50 PM Coordinated Universal Time", ja: "1989/01/23 7時08分09秒 協定世界時～2021/12/07 17時40分50秒 協定世界時" },
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{ date: "short", time: "long", en: "1/23/89, 7:08:09 AM UTC – 12/7/21, 5:40:50 PM UTC", ja: "1989/01/23 7:08:09 UTC～2021/12/07 17:40:50 UTC" },
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{ date: "short", time: "medium", en: "1/23/89, 7:08:09 AM – 12/7/21, 5:40:50 PM", ja: "1989/01/23 7:08:09～2021/12/07 17:40:50" },
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{ date: "short", time: "short", en: "1/23/89, 7:08 AM – 12/7/21, 5:40 PM", ja: "1989/01/23 7:08～2021/12/07 17:40" },
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];
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test("all", () => {
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data.forEach(d => {
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const en = new Intl.DateTimeFormat("en", {
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dateStyle: d.date,
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timeStyle: d.time,
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timeZone: "UTC",
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});
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expect(en.formatRange(d0, d1)).toBe(d.en);
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const ja = new Intl.DateTimeFormat("ja", {
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dateStyle: d.date,
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timeStyle: d.time,
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timeZone: "UTC",
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});
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expect(ja.formatRange(d0, d1)).toBe(d.ja);
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});
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});
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});
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