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LibJS: Implement Intl.Locale.prototype.timeZones property

This commit is contained in:
Timothy Flynn 2022-07-05 16:20:36 -04:00 committed by Linus Groh
parent fa005bd276
commit 814f13bc2a
6 changed files with 79 additions and 0 deletions

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describe("errors", () => {
test("called on non-Locale object", () => {
expect(() => {
Intl.Locale.prototype.timeZones;
}).toThrowWithMessage(TypeError, "Not an object of type Intl.Locale");
});
});
describe("normal behavior", () => {
test("basic functionality", () => {
expect(new Intl.Locale("en").timeZones).toBeUndefined();
expect(new Intl.Locale("ar-Latn").timeZones).toBeUndefined();
const adZones = new Intl.Locale("en-AD").timeZones;
expect(Array.isArray(adZones)).toBeTrue();
expect(adZones).toEqual(["Europe/Andorra"]);
const esZones = new Intl.Locale("en-ES").timeZones;
expect(Array.isArray(esZones)).toBeTrue();
expect(esZones).toEqual(["Africa/Ceuta", "Atlantic/Canary", "Europe/Madrid"]);
});
test("zone list is sorted", () => {
const zones = new Intl.Locale("en-US").timeZones;
const sortedZones = zones.toSorted();
expect(zones).toEqual(sortedZones);
});
test("invalid region produces empty list", () => {
const zones = new Intl.Locale("en-ZZ").timeZones;
expect(Array.isArray(zones)).toBeTrue();
expect(zones).toEqual([]);
});
});