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LibJS: Implement Intl.DateTimeFormat.prototype.formatRangeToParts

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Timothy Flynn 2021-12-09 13:35:59 -05:00 committed by Linus Groh
parent 04f8fb07e1
commit 53df13fed7
6 changed files with 569 additions and 0 deletions

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describe("errors", () => {
test("called on non-DateTimeFormat object", () => {
expect(() => {
Intl.DateTimeFormat.prototype.formatRangeToParts(1, 2);
}).toThrowWithMessage(TypeError, "Not an object of type Intl.DateTimeFormat");
});
test("called with undefined values", () => {
expect(() => {
Intl.DateTimeFormat().formatRangeToParts();
}).toThrowWithMessage(TypeError, "startDate is undefined");
expect(() => {
Intl.DateTimeFormat().formatRangeToParts(1);
}).toThrowWithMessage(TypeError, "endDate is undefined");
});
test("called with values that cannot be converted to numbers", () => {
expect(() => {
Intl.DateTimeFormat().formatRangeToParts(1, Symbol.hasInstance);
}).toThrowWithMessage(TypeError, "Cannot convert symbol to number");
expect(() => {
Intl.DateTimeFormat().formatRangeToParts(1n, 1);
}).toThrowWithMessage(TypeError, "Cannot convert BigInt to number");
});
test("time value cannot be clipped", () => {
[NaN, -8.65e15, 8.65e15].forEach(d => {
expect(() => {
Intl.DateTimeFormat().formatRangeToParts(d, 1);
}).toThrowWithMessage(RangeError, "Time value must be between -8.64E15 and 8.64E15");
expect(() => {
Intl.DateTimeFormat().formatRangeToParts(1, d);
}).toThrowWithMessage(RangeError, "Time value must be between -8.64E15 and 8.64E15");
});
});
test("called with values in bad order", () => {
expect(() => {
Intl.DateTimeFormat().formatRangeToParts(new Date(2021), new Date(1989));
}).toThrowWithMessage(RangeError, "Start time 2021 is after end time 1989");
});
});
const d0 = Date.UTC(1989, 0, 23, 7, 8, 9, 45);
const d1 = Date.UTC(2021, 11, 7, 17, 40, 50, 456);
describe("equal dates are squashed", () => {
test("with date fields", () => {
const en = new Intl.DateTimeFormat("en", {
year: "numeric",
month: "long",
day: "2-digit",
});
expect(en.formatRangeToParts(d0, d0)).toEqual([
{ type: "month", value: "January", source: "shared" },
{ type: "literal", value: " ", source: "shared" },
{ type: "day", value: "23", source: "shared" },
{ type: "literal", value: ", ", source: "shared" },
{ type: "year", value: "1989", source: "shared" },
]);
const ja = new Intl.DateTimeFormat("ja", {
year: "numeric",
month: "long",
day: "2-digit",
});
expect(ja.formatRangeToParts(d0, d0)).toEqual([
{ type: "year", value: "1989", source: "shared" },
{ type: "literal", value: "/", source: "shared" },
{ type: "month", value: "1月", source: "shared" },
{ type: "literal", value: "/", source: "shared" },
{ type: "day", value: "23", source: "shared" },
]);
});
test("with time fields", () => {
const en = new Intl.DateTimeFormat("en", {
hour: "numeric",
minute: "2-digit",
second: "2-digit",
timeZone: "UTC",
});
expect(en.formatRangeToParts(d0, d0)).toEqual([
{ type: "hour", value: "7", source: "shared" },
{ type: "literal", value: ":", source: "shared" },
{ type: "minute", value: "08", source: "shared" },
{ type: "literal", value: ":", source: "shared" },
{ type: "second", value: "09", source: "shared" },
{ type: "literal", value: " ", source: "shared" },
{ type: "dayPeriod", value: "AM", source: "shared" },
]);
const ja = new Intl.DateTimeFormat("ja", {
hour: "numeric",
minute: "2-digit",
second: "2-digit",
timeZone: "UTC",
});
expect(ja.formatRangeToParts(d0, d0)).toEqual([
{ type: "hour", value: "7", source: "shared" },
{ type: "literal", value: ":", source: "shared" },
{ type: "minute", value: "08", source: "shared" },
{ type: "literal", value: ":", source: "shared" },
{ type: "second", value: "09", source: "shared" },
]);
});
test("with mixed fields", () => {
const en = new Intl.DateTimeFormat("en", {
year: "numeric",
month: "long",
day: "2-digit",
hour: "numeric",
minute: "2-digit",
second: "2-digit",
timeZone: "UTC",
});
expect(en.formatRangeToParts(d0, d0)).toEqual([
{ type: "month", value: "January", source: "shared" },
{ type: "literal", value: " ", source: "shared" },
{ type: "day", value: "23", source: "shared" },
{ type: "literal", value: ", ", source: "shared" },
{ type: "year", value: "1989", source: "shared" },
{ type: "literal", value: " at ", source: "shared" },
{ type: "hour", value: "7", source: "shared" },
{ type: "literal", value: ":", source: "shared" },
{ type: "minute", value: "08", source: "shared" },
{ type: "literal", value: ":", source: "shared" },
{ type: "second", value: "09", source: "shared" },
{ type: "literal", value: " ", source: "shared" },
{ type: "dayPeriod", value: "AM", source: "shared" },
]);
const ja = new Intl.DateTimeFormat("ja", {
year: "numeric",
month: "long",
day: "2-digit",
hour: "numeric",
minute: "2-digit",
second: "2-digit",
timeZone: "UTC",
});
expect(ja.formatRangeToParts(d0, d0)).toEqual([
{ type: "year", value: "1989", source: "shared" },
{ type: "literal", value: "/", source: "shared" },
{ type: "month", value: "1月", source: "shared" },
{ type: "literal", value: "/", source: "shared" },
{ type: "day", value: "23", source: "shared" },
{ type: "literal", value: " ", source: "shared" },
{ type: "hour", value: "7", source: "shared" },
{ type: "literal", value: ":", source: "shared" },
{ type: "minute", value: "08", source: "shared" },
{ type: "literal", value: ":", source: "shared" },
{ type: "second", value: "09", source: "shared" },
]);
});
test("with date/time style fields", () => {
const en = new Intl.DateTimeFormat("en", {
dateStyle: "full",
timeStyle: "medium",
timeZone: "UTC",
});
expect(en.formatRangeToParts(d0, d0)).toEqual([
{ type: "weekday", value: "Monday", source: "shared" },
{ type: "literal", value: ", ", source: "shared" },
{ type: "month", value: "January", source: "shared" },
{ type: "literal", value: " ", source: "shared" },
{ type: "day", value: "23", source: "shared" },
{ type: "literal", value: ", ", source: "shared" },
{ type: "year", value: "1989", source: "shared" },
{ type: "literal", value: " at ", source: "shared" },
{ type: "hour", value: "7", source: "shared" },
{ type: "literal", value: ":", source: "shared" },
{ type: "minute", value: "08", source: "shared" },
{ type: "literal", value: ":", source: "shared" },
{ type: "second", value: "09", source: "shared" },
{ type: "literal", value: " ", source: "shared" },
{ type: "dayPeriod", value: "AM", source: "shared" },
]);
const ja = new Intl.DateTimeFormat("ja", {
dateStyle: "full",
timeStyle: "medium",
timeZone: "UTC",
});
expect(ja.formatRangeToParts(d0, d0)).toEqual([
{ type: "year", value: "1989", source: "shared" },
{ type: "literal", value: "年", source: "shared" },
{ type: "month", value: "1", source: "shared" },
{ type: "literal", value: "月", source: "shared" },
{ type: "day", value: "23", source: "shared" },
{ type: "literal", value: "日", source: "shared" },
{ type: "weekday", value: "月曜日", source: "shared" },
{ type: "literal", value: " ", source: "shared" },
{ type: "hour", value: "7", source: "shared" },
{ type: "literal", value: ":", source: "shared" },
{ type: "minute", value: "08", source: "shared" },
{ type: "literal", value: ":", source: "shared" },
{ type: "second", value: "09", source: "shared" },
]);
});
});
describe("dateStyle", () => {
test("full", () => {
const en = new Intl.DateTimeFormat("en", { dateStyle: "full" });
expect(en.formatRangeToParts(d0, d1)).toEqual([
{ type: "weekday", value: "Monday", source: "startRange" },
{ type: "literal", value: ", ", source: "startRange" },
{ type: "month", value: "January", source: "startRange" },
{ type: "literal", value: " ", source: "startRange" },
{ type: "day", value: "23", source: "startRange" },
{ type: "literal", value: ", ", source: "startRange" },
{ type: "year", value: "1989", source: "startRange" },
{ type: "literal", value: " ", source: "shared" },
{ type: "weekday", value: "Tuesday", source: "endRange" },
{ type: "literal", value: ", ", source: "endRange" },
{ type: "month", value: "December", source: "endRange" },
{ type: "literal", value: " ", source: "endRange" },
{ type: "day", value: "7", source: "endRange" },
{ type: "literal", value: ", ", source: "endRange" },
{ type: "year", value: "2021", source: "endRange" },
]);
const ja = new Intl.DateTimeFormat("ja", { dateStyle: "full" });
expect(ja.formatRangeToParts(d0, d1)).toEqual([
{ type: "year", value: "1989", source: "startRange" },
{ type: "literal", value: "年", source: "startRange" },
{ type: "month", value: "1", source: "startRange" },
{ type: "literal", value: "月", source: "startRange" },
{ type: "day", value: "23", source: "startRange" },
{ type: "literal", value: "日", source: "startRange" },
{ type: "weekday", value: "月曜日", source: "startRange" },
{ type: "literal", value: "", source: "shared" },
{ type: "year", value: "2021", source: "endRange" },
{ type: "literal", value: "年", source: "endRange" },
{ type: "month", value: "12", source: "endRange" },
{ type: "literal", value: "月", source: "endRange" },
{ type: "day", value: "7", source: "endRange" },
{ type: "literal", value: "日", source: "endRange" },
{ type: "weekday", value: "火曜日", source: "endRange" },
]);
});
test("long", () => {
const en = new Intl.DateTimeFormat("en", { dateStyle: "long" });
expect(en.formatRangeToParts(d0, d1)).toEqual([
{ type: "month", value: "January", source: "startRange" },
{ type: "literal", value: " ", source: "startRange" },
{ type: "day", value: "23", source: "startRange" },
{ type: "literal", value: ", ", source: "startRange" },
{ type: "year", value: "1989", source: "startRange" },
{ type: "literal", value: " ", source: "shared" },
{ type: "month", value: "December", source: "endRange" },
{ type: "literal", value: " ", source: "endRange" },
{ type: "day", value: "7", source: "endRange" },
{ type: "literal", value: ", ", source: "endRange" },
{ type: "year", value: "2021", source: "endRange" },
]);
const ja = new Intl.DateTimeFormat("ja", { dateStyle: "long" });
expect(ja.formatRangeToParts(d0, d1)).toEqual([
{ type: "year", value: "1989", source: "startRange" },
{ type: "literal", value: "/", source: "startRange" },
{ type: "month", value: "01", source: "startRange" },
{ type: "literal", value: "/", source: "startRange" },
{ type: "day", value: "23", source: "startRange" },
{ type: "literal", value: "", source: "shared" },
{ type: "year", value: "2021", source: "endRange" },
{ type: "literal", value: "/", source: "endRange" },
{ type: "month", value: "12", source: "endRange" },
{ type: "literal", value: "/", source: "endRange" },
{ type: "day", value: "07", source: "endRange" },
]);
});
test("medium", () => {
const en = new Intl.DateTimeFormat("en", { dateStyle: "medium" });
expect(en.formatRangeToParts(d0, d1)).toEqual([
{ type: "month", value: "Jan", source: "startRange" },
{ type: "literal", value: " ", source: "startRange" },
{ type: "day", value: "23", source: "startRange" },
{ type: "literal", value: ", ", source: "startRange" },
{ type: "year", value: "1989", source: "startRange" },
{ type: "literal", value: " ", source: "shared" },
{ type: "month", value: "Dec", source: "endRange" },
{ type: "literal", value: " ", source: "endRange" },
{ type: "day", value: "7", source: "endRange" },
{ type: "literal", value: ", ", source: "endRange" },
{ type: "year", value: "2021", source: "endRange" },
]);
const ja = new Intl.DateTimeFormat("ja", { dateStyle: "medium" });
expect(ja.formatRangeToParts(d0, d1)).toEqual([
{ type: "year", value: "1989", source: "startRange" },
{ type: "literal", value: "/", source: "startRange" },
{ type: "month", value: "01", source: "startRange" },
{ type: "literal", value: "/", source: "startRange" },
{ type: "day", value: "23", source: "startRange" },
{ type: "literal", value: "", source: "shared" },
{ type: "year", value: "2021", source: "endRange" },
{ type: "literal", value: "/", source: "endRange" },
{ type: "month", value: "12", source: "endRange" },
{ type: "literal", value: "/", source: "endRange" },
{ type: "day", value: "07", source: "endRange" },
]);
});
test("short", () => {
const en = new Intl.DateTimeFormat("en", { dateStyle: "short" });
expect(en.formatRangeToParts(d0, d1)).toEqual([
{ type: "month", value: "1", source: "startRange" },
{ type: "literal", value: "/", source: "startRange" },
{ type: "day", value: "23", source: "startRange" },
{ type: "literal", value: "/", source: "startRange" },
{ type: "year", value: "89", source: "startRange" },
{ type: "literal", value: " ", source: "shared" },
{ type: "month", value: "12", source: "endRange" },
{ type: "literal", value: "/", source: "endRange" },
{ type: "day", value: "7", source: "endRange" },
{ type: "literal", value: "/", source: "endRange" },
{ type: "year", value: "21", source: "endRange" },
]);
const ja = new Intl.DateTimeFormat("ja", { dateStyle: "short" });
expect(ja.formatRangeToParts(d0, d1)).toEqual([
{ type: "year", value: "1989", source: "startRange" },
{ type: "literal", value: "/", source: "startRange" },
{ type: "month", value: "01", source: "startRange" },
{ type: "literal", value: "/", source: "startRange" },
{ type: "day", value: "23", source: "startRange" },
{ type: "literal", value: "", source: "shared" },
{ type: "year", value: "2021", source: "endRange" },
{ type: "literal", value: "/", source: "endRange" },
{ type: "month", value: "12", source: "endRange" },
{ type: "literal", value: "/", source: "endRange" },
{ type: "day", value: "07", source: "endRange" },
]);
});
});
describe("timeStyle", () => {
// FIXME: These results should include the date, even though it isn't requested, because the start/end dates
// are more than just hours apart. See the FIXME in PartitionDateTimeRangePattern.
test("full", () => {
const en = new Intl.DateTimeFormat("en", { timeStyle: "full" });
expect(en.formatRangeToParts(d0, d1)).toEqual([
{ type: "hour", value: "7", source: "startRange" },
{ type: "literal", value: ":", source: "startRange" },
{ type: "minute", value: "08", source: "startRange" },
{ type: "literal", value: ":", source: "startRange" },
{ type: "second", value: "09", source: "startRange" },
{ type: "literal", value: " ", source: "startRange" },
{ type: "dayPeriod", value: "AM", source: "startRange" },
{ type: "literal", value: " ", source: "startRange" },
{ type: "timeZoneName", value: "Coordinated Universal Time", source: "startRange" },
{ type: "literal", value: " ", source: "shared" },
{ type: "hour", value: "5", source: "endRange" },
{ type: "literal", value: ":", source: "endRange" },
{ type: "minute", value: "40", source: "endRange" },
{ type: "literal", value: ":", source: "endRange" },
{ type: "second", value: "50", source: "endRange" },
{ type: "literal", value: " ", source: "endRange" },
{ type: "dayPeriod", value: "PM", source: "endRange" },
{ type: "literal", value: " ", source: "endRange" },
{ type: "timeZoneName", value: "Coordinated Universal Time", source: "endRange" },
]);
const ja = new Intl.DateTimeFormat("ja", { timeStyle: "full" });
expect(ja.formatRangeToParts(d0, d1)).toEqual([
{ type: "hour", value: "7", source: "startRange" },
{ type: "literal", value: "時", source: "startRange" },
{ type: "minute", value: "08", source: "startRange" },
{ type: "literal", value: "分", source: "startRange" },
{ type: "second", value: "09", source: "startRange" },
{ type: "literal", value: "秒 ", source: "startRange" },
{ type: "timeZoneName", value: "協定世界時", source: "startRange" },
{ type: "literal", value: "", source: "shared" },
{ type: "hour", value: "17", source: "endRange" },
{ type: "literal", value: "時", source: "endRange" },
{ type: "minute", value: "40", source: "endRange" },
{ type: "literal", value: "分", source: "endRange" },
{ type: "second", value: "50", source: "endRange" },
{ type: "literal", value: "秒 ", source: "endRange" },
{ type: "timeZoneName", value: "協定世界時", source: "endRange" },
]);
});
test("long", () => {
const en = new Intl.DateTimeFormat("en", { timeStyle: "long" });
expect(en.formatRangeToParts(d0, d1)).toEqual([
{ type: "hour", value: "7", source: "startRange" },
{ type: "literal", value: ":", source: "startRange" },
{ type: "minute", value: "08", source: "startRange" },
{ type: "literal", value: ":", source: "startRange" },
{ type: "second", value: "09", source: "startRange" },
{ type: "literal", value: " ", source: "startRange" },
{ type: "dayPeriod", value: "AM", source: "startRange" },
{ type: "literal", value: " ", source: "startRange" },
{ type: "timeZoneName", value: "UTC", source: "startRange" },
{ type: "literal", value: " ", source: "shared" },
{ type: "hour", value: "5", source: "endRange" },
{ type: "literal", value: ":", source: "endRange" },
{ type: "minute", value: "40", source: "endRange" },
{ type: "literal", value: ":", source: "endRange" },
{ type: "second", value: "50", source: "endRange" },
{ type: "literal", value: " ", source: "endRange" },
{ type: "dayPeriod", value: "PM", source: "endRange" },
{ type: "literal", value: " ", source: "endRange" },
{ type: "timeZoneName", value: "UTC", source: "endRange" },
]);
const ja = new Intl.DateTimeFormat("ja", { timeStyle: "long" });
expect(ja.formatRangeToParts(d0, d1)).toEqual([
{ type: "hour", value: "7", source: "startRange" },
{ type: "literal", value: ":", source: "startRange" },
{ type: "minute", value: "08", source: "startRange" },
{ type: "literal", value: ":", source: "startRange" },
{ type: "second", value: "09", source: "startRange" },
{ type: "literal", value: " ", source: "startRange" },
{ type: "timeZoneName", value: "UTC", source: "startRange" },
{ type: "literal", value: "", source: "shared" },
{ type: "hour", value: "17", source: "endRange" },
{ type: "literal", value: ":", source: "endRange" },
{ type: "minute", value: "40", source: "endRange" },
{ type: "literal", value: ":", source: "endRange" },
{ type: "second", value: "50", source: "endRange" },
{ type: "literal", value: " ", source: "endRange" },
{ type: "timeZoneName", value: "UTC", source: "endRange" },
]);
});
test("medium", () => {
const en = new Intl.DateTimeFormat("en", { timeStyle: "medium" });
expect(en.formatRangeToParts(d0, d1)).toEqual([
{ type: "hour", value: "7", source: "startRange" },
{ type: "literal", value: ":", source: "startRange" },
{ type: "minute", value: "08", source: "startRange" },
{ type: "literal", value: ":", source: "startRange" },
{ type: "second", value: "09", source: "startRange" },
{ type: "literal", value: " ", source: "startRange" },
{ type: "dayPeriod", value: "AM", source: "startRange" },
{ type: "literal", value: " ", source: "shared" },
{ type: "hour", value: "5", source: "endRange" },
{ type: "literal", value: ":", source: "endRange" },
{ type: "minute", value: "40", source: "endRange" },
{ type: "literal", value: ":", source: "endRange" },
{ type: "second", value: "50", source: "endRange" },
{ type: "literal", value: " ", source: "endRange" },
{ type: "dayPeriod", value: "PM", source: "endRange" },
]);
const ja = new Intl.DateTimeFormat("ja", { timeStyle: "medium" });
expect(ja.formatRangeToParts(d0, d1)).toEqual([
{ type: "hour", value: "7", source: "startRange" },
{ type: "literal", value: ":", source: "startRange" },
{ type: "minute", value: "08", source: "startRange" },
{ type: "literal", value: ":", source: "startRange" },
{ type: "second", value: "09", source: "startRange" },
{ type: "literal", value: "", source: "shared" },
{ type: "hour", value: "17", source: "endRange" },
{ type: "literal", value: ":", source: "endRange" },
{ type: "minute", value: "40", source: "endRange" },
{ type: "literal", value: ":", source: "endRange" },
{ type: "second", value: "50", source: "endRange" },
]);
});
test("short", () => {
const en = new Intl.DateTimeFormat("en", { timeStyle: "short" });
expect(en.formatRangeToParts(d0, d1)).toEqual([
{ type: "hour", value: "7", source: "startRange" },
{ type: "literal", value: ":", source: "startRange" },
{ type: "minute", value: "08", source: "startRange" },
{ type: "literal", value: " ", source: "startRange" },
{ type: "dayPeriod", value: "AM", source: "startRange" },
{ type: "literal", value: " ", source: "shared" },
{ type: "hour", value: "5", source: "endRange" },
{ type: "literal", value: ":", source: "endRange" },
{ type: "minute", value: "40", source: "endRange" },
{ type: "literal", value: " ", source: "endRange" },
{ type: "dayPeriod", value: "PM", source: "endRange" },
]);
const ja = new Intl.DateTimeFormat("ja", { timeStyle: "short" });
expect(ja.formatRangeToParts(d0, d1)).toEqual([
{ type: "hour", value: "7", source: "startRange" },
{ type: "literal", value: ":", source: "startRange" },
{ type: "minute", value: "08", source: "startRange" },
{ type: "literal", value: "", source: "shared" },
{ type: "hour", value: "17", source: "endRange" },
{ type: "literal", value: ":", source: "endRange" },
{ type: "minute", value: "40", source: "endRange" },
]);
});
});