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LibJS: Implement Temporal.ZonedDateTime.prototype.subtract

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Luke Wilde 2021-11-12 00:36:58 +00:00 • committed by Linus Groh
parent 9b8524b463
commit f65d25682c
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62
Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.subtract.js Normal file
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describe("correct behavior", () => {
test("length is 1", () => {
expect(Temporal.ZonedDateTime.prototype.subtract).toHaveLength(1);
});
test("basic functionality", () => {
const plainDateTime = new Temporal.PlainDateTime(2021, 11, 12, 0, 22, 30, 100, 200, 300);
const timeZone = new Temporal.TimeZone("UTC");
const zonedDateTime = plainDateTime.toZonedDateTime(timeZone);
const dayDuration = new Temporal.Duration(0, 0, 0, 1);
const result = zonedDateTime.subtract(dayDuration);
expect(zonedDateTime.day).toBe(12);
expect(zonedDateTime.epochNanoseconds).toBe(1636676550100200300n);
expect(result.day).toBe(11);
expect(result.epochNanoseconds).toBe(1636590150100200300n);
});
test("duration-like object", () => {
const plainDateTime = new Temporal.PlainDateTime(2021, 11, 12, 0, 22, 30, 100, 200, 300);
const timeZone = new Temporal.TimeZone("UTC");
const zonedDateTime = plainDateTime.toZonedDateTime(timeZone);
const dayDuration = { days: 1 };
const result = zonedDateTime.subtract(dayDuration);
expect(zonedDateTime.day).toBe(12);
expect(zonedDateTime.epochNanoseconds).toBe(1636676550100200300n);
expect(result.day).toBe(11);
expect(result.epochNanoseconds).toBe(1636590150100200300n);
});
// FIXME: Unskip when ParseTemporalDurationString is implemented.
test.skip("duration string", () => {
const plainDateTime = new Temporal.PlainDateTime(2021, 11, 12, 0, 22, 30, 100, 200, 300);
const timeZone = new Temporal.TimeZone("UTC");
const zonedDateTime = plainDateTime.toZonedDateTime(timeZone);
const dayDuration = "P1D";
const result = zonedDateTime.subtract(dayDuration);
expect(zonedDateTime.day).toBe(12);
expect(zonedDateTime.epochNanoseconds).toBe(1636676550100200300n);
expect(result.day).toBe(11);
expect(result.epochNanoseconds).toBe(1636590150100200300n);
});
});
describe("errors", () => {
test("this value must be a Temporal.ZonedDateTime object", () => {
expect(() => {
Temporal.ZonedDateTime.prototype.subtract.call("foo");
}).toThrowWithMessage(TypeError, "Not an object of type Temporal.ZonedDateTime");
});
test("invalid duration-like object", () => {
expect(() => {
new Temporal.ZonedDateTime(1n, {}).subtract({});
}).toThrowWithMessage(TypeError, "Invalid duration-like object");
});
});