// create unit test for time utils import { timeUtils } from './time-utils'; describe('Time Utilities', () => { describe('checkValidTimestamp', () => { it('check for year 0000', () => { const result = timeUtils.checkValidTimestamp('0000-00-00T00:00:00.000Z'); expect(result).toBeFalsy(); }); it('check for 6-digits year with plus sign', () => { const result = timeUtils.checkValidTimestamp('+12345-00-00T00:00:00.000Z'); expect(result).toBeFalsy(); }); it('check for 6-digits year with negative sign', () => { const result = timeUtils.checkValidTimestamp('-12345-00-00T00:00:00.000Z'); expect(result).toBeFalsy(); }); it('check for current date', () => { const result = timeUtils.checkValidTimestamp(new Date().toISOString()); expect(result).toBeTruthy(); }); it('check for year before 1583', () => { const result = timeUtils.checkValidTimestamp('1582-12-31T23:59:59.999Z'); expect(result).toBeFalsy(); }); it('check for year after 9999', () => { const result = timeUtils.checkValidTimestamp('10000-00-00T00:00:00.000Z'); expect(result).toBeFalsy(); }); }); });