import { getTimeZoneInfo } from './timezones'; import { setTimeZoneResolver } from './common'; describe('getTimeZoneInfo', () => { // global timezone is set to Pacific/Easter, see jest-config.js file describe('IANA canonical name of the timezone', () => { it('should resolve for default timezone', () => { setTimeZoneResolver(() => 'browser'); const result = getTimeZoneInfo('', Date.now()); expect(result?.ianaName).toBe('Pacific/Easter'); }); it('should resolve for browser timezone', () => { const result = getTimeZoneInfo('browser', Date.now()); expect(result?.ianaName).toBe('Pacific/Easter'); }); it('should resolve for utc timezone', () => { const result = getTimeZoneInfo('utc', Date.now()); expect(result?.ianaName).toBe('UTC'); }); it('should resolve for given timezone', () => { const result = getTimeZoneInfo('Europe/Warsaw', Date.now()); expect(result?.ianaName).toBe('Europe/Warsaw'); }); }); });