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LibJS: Implement Temporal.PlainDate.prototype.toZonedDateTime()
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describe("correct behavior", () => {
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test("length is 1", () => {
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expect(Temporal.PlainDate.prototype.toZonedDateTime).toHaveLength(1);
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});
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test("basic functionality - time zone", () => {
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// 3.b. in the spec
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const plainDate = new Temporal.PlainDate(2021, 7, 6);
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const timeZone = new Temporal.TimeZone("UTC");
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const zonedDateTime = plainDate.toZonedDateTime(timeZone);
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expect(zonedDateTime.year).toBe(2021);
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expect(zonedDateTime.month).toBe(7);
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expect(zonedDateTime.day).toBe(6);
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expect(zonedDateTime.hour).toBe(0);
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expect(zonedDateTime.minute).toBe(0);
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expect(zonedDateTime.second).toBe(0);
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expect(zonedDateTime.millisecond).toBe(0);
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expect(zonedDateTime.microsecond).toBe(0);
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expect(zonedDateTime.nanosecond).toBe(0);
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expect(zonedDateTime.calendar).toBe(plainDate.calendar);
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expect(zonedDateTime.timeZone).toBe(timeZone);
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});
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test("basic functionality - time zone like object", () => {
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// 3.c. in the spec
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const plainDate = new Temporal.PlainDate(2021, 7, 6);
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const timeZone = new Temporal.TimeZone("UTC");
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const zonedDateTime = plainDate.toZonedDateTime({ timeZone });
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expect(zonedDateTime.year).toBe(2021);
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expect(zonedDateTime.month).toBe(7);
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expect(zonedDateTime.day).toBe(6);
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expect(zonedDateTime.hour).toBe(0);
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expect(zonedDateTime.minute).toBe(0);
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expect(zonedDateTime.second).toBe(0);
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expect(zonedDateTime.millisecond).toBe(0);
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expect(zonedDateTime.microsecond).toBe(0);
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expect(zonedDateTime.nanosecond).toBe(0);
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expect(zonedDateTime.calendar).toBe(plainDate.calendar);
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expect(zonedDateTime.timeZone).toBe(timeZone);
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});
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test("basic functionality - time zone like object and plain time", () => {
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// 3.c. in the spec
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const plainDate = new Temporal.PlainDate(2021, 7, 6);
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const plainTime = new Temporal.PlainTime(18, 14, 47, 123, 456, 789);
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const timeZone = new Temporal.TimeZone("UTC");
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const zonedDateTime = plainDate.toZonedDateTime({ timeZone, plainTime });
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expect(zonedDateTime.year).toBe(2021);
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expect(zonedDateTime.month).toBe(7);
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expect(zonedDateTime.day).toBe(6);
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expect(zonedDateTime.hour).toBe(18);
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expect(zonedDateTime.minute).toBe(14);
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expect(zonedDateTime.second).toBe(47);
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expect(zonedDateTime.millisecond).toBe(123);
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expect(zonedDateTime.microsecond).toBe(456);
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expect(zonedDateTime.nanosecond).toBe(789);
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expect(zonedDateTime.calendar).toBe(plainDate.calendar);
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expect(zonedDateTime.timeZone).toBe(timeZone);
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});
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// TODO: Enable when parse_temporal_time_zone_string() is fully implemented
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test.skip("basic functionality - time zone identifier", () => {
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// 4. in the spec
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const plainDate = new Temporal.PlainDate(2021, 7, 6);
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const zonedDateTime = plainDate.toZonedDateTime("UTC");
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expect(zonedDateTime.year).toBe(2021);
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expect(zonedDateTime.month).toBe(7);
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expect(zonedDateTime.day).toBe(6);
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expect(zonedDateTime.hour).toBe(0);
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expect(zonedDateTime.minute).toBe(0);
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expect(zonedDateTime.second).toBe(0);
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expect(zonedDateTime.millisecond).toBe(0);
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expect(zonedDateTime.microsecond).toBe(0);
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expect(zonedDateTime.nanosecond).toBe(0);
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expect(zonedDateTime.calendar).toBe(plainDate.calendar);
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expect(zonedDateTime.timeZone.id).toBe("UTC");
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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.toZonedDateTime.call("foo");
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}).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDate");
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});
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});
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