message: Make tets more stable
diff: @@ -2,7 +2,7 @@ let http = require('http')
  let BaseServer = require('../base-server')
  -let lastPort = 8111
  +let lastPort = 10111
  function createServer () {
  lastPort += 2
  let server = new BaseServer({
  @@ -69,7 +69,7 @@ it('expects GET for health check', () => {
  })
  })
  -it('response 404', () => {
  +it('responses 404', () => {
  app = createServer()
  return app.listen().then(() => {
  return request('GET', '/unknown')
  