describe("correct behavior", () => { test("length is 0", () => { expect(Temporal.Now.zonedDateTimeISO).toHaveLength(0); }); test("basic functionality", () => { const zonedDateTime = Temporal.Now.zonedDateTimeISO(); expect(zonedDateTime).toBeInstanceOf(Temporal.ZonedDateTime); expect(zonedDateTime.calendarId).toBe("iso8601"); }); test("with time zone", () => { const timeZone = "UTC"; const zonedDateTime = Temporal.Now.zonedDateTimeISO(timeZone); expect(zonedDateTime).toBeInstanceOf(Temporal.ZonedDateTime); expect(zonedDateTime.calendarId).toBe("iso8601"); expect(zonedDateTime.timeZoneId).toBe(timeZone); }); });