yield from self._loop.run_in_executor(None, self._onboarder.onboard, nsd_msg)
self.assertEqual(self._handler_info.last_request_message, nsd_msg)
self.assertEqual(self._handler_info.last_descriptor_type, "nsd")
yield from self._loop.run_in_executor(None, self._onboarder.onboard, nsd_msg)
self.assertEqual(self._handler_info.last_request_message, nsd_msg)
self.assertEqual(self._handler_info.last_descriptor_type, "nsd")