sentry/tests/js/spec/utils/dates.spec.jsx

import {setDateToTime} from 'app/utils/dates';

describe('utils.dates', function() {
  describe('setDateToTime', function() {
    it('can set new time for current date', function() {
      const date = new Date();
      const newDate = setDateToTime(date, '11:11');
      expect(newDate).toEqual(new Date(1508238680000));
    });

    it('can set new time (including seconds) for current date', function() {
      const date = new Date();
      const newDate = setDateToTime(date, '11:11:11');
      expect(newDate).toEqual(new Date(1508238671000));
    });

    it('can set new time in local for current date', function() {
      const date = new Date();
      const newDate = setDateToTime(date, '11:11:11', {local: true});
      expect(newDate).toEqual(new Date(1508166671000));
    });
  });
});