docs: def _wait_dialog(self):
          """Wait for dialogs and handle them until done.
          """
          logger.debug('waiting for dialog')
          done = False
          error = False
  
          logger.info("self timeout %d",self.timeout)
          while not done and self.timeout:
              try:
                  dialog = self._browser.find_element_by_id('RemoteConfirm')
              except:
                  logger.exception('Failed to get dialog.')
              else:
                  if dialog and dialog.get_attribute('aria-hidden') == 'false':
                      title = dialog.find_element_by_class_name('modal-title').text
                      time.sleep(1)
                      logger.info('Handling dialog[%s]', title)
  
                      try:
                          done = self._handle_dialog(dialog, title)
                      except:
                          logger.exception('Error handling dialog: %s', title)
                          error = True
  
                      if done is None:
                          raise FailError('Unexpected dialog occurred')
  
                      dialog.find_element_by_id('ConfirmOk').click()
  
              time.sleep(1)
  
              try:
                  stop_button = self._browser.find_element_by_id('stopTest')
                  if done:
                      stop_button.click()
                      # wait for stop procedure end
                      time.sleep(10)
              except NoSuchElementException:
                  logger.info('Test stopped')
                  time.sleep(5)
                  done = True
  
              self.timeout -= 1
  
              # check if already ended capture
              if self.timeout % 10 == 0:
                  lines = self._hc.tail()
                  if 'SUCCESS: The process "dumpcap.exe" with PID ' in lines:
                      logger.info('Tshark should be ended now, lets wait at most 30 seconds.')
                      if not wait_until(lambda: 'tshark.exe' not in subprocess.check_output('tasklist'), 30):
                          res = subprocess.check_output('taskkill /t /f /im tshark.exe',
                                                        stderr=subprocess.STDOUT, shell=True)
                          logger.info(res)
  
          # Wait until case really stopped
          wait_until(lambda: self._browser.find_element_by_id('runTest') and True, 30)
  
          if error:
              raise FailError('Fail for previous exceptions')