import {LogService} from "./log.service"; describe('log service service', () => { let logService : LogService; beforeEach(() => { logService = new LogService(); }); it('check all ILogger function are defined', ()=>{ expect(logService.log).toBeDefined(); expect(logService.assert).toBeDefined(); expect(logService.error).toBeDefined(); expect(logService.group).toBeDefined(); expect(logService.groupEnd).toBeDefined(); expect(logService.info).toBeDefined(); expect(logService.warn).toBeDefined(); }); it('test getPrefixLog function', ()=> { let args = ['message', [1,2,3,4,5]]; let result = LogService.getPrefixLog(args); expect(result).toBeDefined(); }); });