immich/server/libs/common/src/utils/time-utils.spec.ts

// create unit test for time utils

import { timeUtils } from './time-utils';

describe('Time Utilities', () => {
  describe('timezone', () => {
    it('should always be UTC', () => {
      expect(new Date().getTimezoneOffset()).toBe(0);
    });
  });

  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();
    });
  });
});