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LibJS: Implement Temporal.ZonedDateTime.prototype.startOfDay

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Luke Wilde 2021-11-03 20:22:55 +00:00 committed by Linus Groh
parent 98accad9ba
commit c001926752
4 changed files with 77 additions and 0 deletions

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describe("correct behavior", () => {
test("length is 0", () => {
expect(Temporal.ZonedDateTime.prototype.startOfDay).toHaveLength(0);
});
test("basic functionality", () => {
const plainDateTime = new Temporal.PlainDateTime(2021, 11, 3, 20, 9, 45, 100, 200, 300);
const timeZone = new Temporal.TimeZone("UTC");
const zonedDateTime = plainDateTime.toZonedDateTime(timeZone);
const startOfDayZonedDateTime = zonedDateTime.startOfDay();
expect(startOfDayZonedDateTime.epochNanoseconds).toBe(1635897600000000000n);
expect(startOfDayZonedDateTime.epochMicroseconds).toBe(1635897600000000n);
expect(startOfDayZonedDateTime.epochMilliseconds).toBe(1635897600000);
expect(startOfDayZonedDateTime.epochSeconds).toBe(1635897600);
expect(startOfDayZonedDateTime.year).toBe(2021);
expect(startOfDayZonedDateTime.month).toBe(11);
expect(startOfDayZonedDateTime.monthCode).toBe("M11");
expect(startOfDayZonedDateTime.day).toBe(3);
expect(startOfDayZonedDateTime.hour).toBe(0);
expect(startOfDayZonedDateTime.minute).toBe(0);
expect(startOfDayZonedDateTime.second).toBe(0);
expect(startOfDayZonedDateTime.millisecond).toBe(0);
expect(startOfDayZonedDateTime.microsecond).toBe(0);
expect(startOfDayZonedDateTime.nanosecond).toBe(0);
expect(startOfDayZonedDateTime.dayOfWeek).toBe(3);
expect(startOfDayZonedDateTime.dayOfYear).toBe(307);
expect(startOfDayZonedDateTime.weekOfYear).toBe(44);
expect(startOfDayZonedDateTime.hoursInDay).toBe(24);
expect(startOfDayZonedDateTime.daysInWeek).toBe(7);
expect(startOfDayZonedDateTime.daysInYear).toBe(365);
expect(startOfDayZonedDateTime.monthsInYear).toBe(12);
expect(startOfDayZonedDateTime.inLeapYear).toBeFalse();
expect(startOfDayZonedDateTime.offset).toBe("+00:00");
expect(startOfDayZonedDateTime.offsetNanoseconds).toBe(0);
});
});
describe("errors", () => {
test("this value must be a Temporal.ZonedDateTime object", () => {
expect(() => {
Temporal.ZonedDateTime.prototype.startOfDay.call("foo");
}).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
});
});