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LibJS: Implement Temporal.TimeZone.prototype.getPlainDateTimeFor()

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This commit is contained in:
Linus Groh 2021-07-31 22:21:53 +01:00
parent c4123d8aad
commit e511390423
7 changed files with 84 additions and 8 deletions
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51
Userland/Libraries/LibJS/Tests/builtins/Temporal/TimeZone/TimeZone.prototype.getPlainDateTimeFor.js Normal file
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describe("correct behavior", () => {
test("length is 1", () => {
expect(Temporal.TimeZone.prototype.getPlainDateTimeFor).toHaveLength(1);
});
test("basic functionality", () => {
const timeZone = new Temporal.TimeZone("UTC");
const instant = Temporal.Instant.fromEpochSeconds(123456789);
const plainDateTime = timeZone.getPlainDateTimeFor(instant);
expect(plainDateTime.year).toBe(1973);
expect(plainDateTime.month).toBe(11);
expect(plainDateTime.day).toBe(29);
expect(plainDateTime.hour).toBe(21);
expect(plainDateTime.minute).toBe(33);
expect(plainDateTime.second).toBe(9);
expect(plainDateTime.millisecond).toBe(0);
expect(plainDateTime.microsecond).toBe(0);
expect(plainDateTime.nanosecond).toBe(0);
expect(plainDateTime.calendar.id).toBe("iso8601");
});
test("custom calendar", () => {
const timeZone = new Temporal.TimeZone("UTC");
const instant = new Temporal.Instant(0n);
const calendar = new Temporal.Calendar("iso8601");
const plainDateTime = timeZone.getPlainDateTimeFor(instant, calendar);
expect(plainDateTime.calendar).toBe(calendar);
});
test("non-TimeZone this value", () => {
const timeZoneLike = {
getOffsetNanosecondsFor() {
return 123;
},
};
const instant = new Temporal.Instant(0n);
const plainDateTime = Temporal.TimeZone.prototype.getPlainDateTimeFor.call(
timeZoneLike,
instant
);
expect(plainDateTime.year).toBe(1970);
expect(plainDateTime.month).toBe(1);
expect(plainDateTime.day).toBe(1);
expect(plainDateTime.hour).toBe(0);
expect(plainDateTime.minute).toBe(0);
expect(plainDateTime.second).toBe(0);
expect(plainDateTime.millisecond).toBe(0);
expect(plainDateTime.microsecond).toBe(0);
expect(plainDateTime.nanosecond).toBe(123);
});
});