add teardown of emitter tests. fixes pytest deadlocking on failing tests
add teardown of emitter tests. fixes pytest deadlocking on failing tests

teleyinex/watchdog,gorakhargosh/watchdog,glorizen/watchdog,ymero/watchdog,mconstantin/watchdog,gorakhargosh/watchdog,glorizen/watchdog,teleyinex/watchdog,mconstantin/watchdog,mconstantin/watchdog,teleyinex/watchdog,ymero/watchdog,ymero/watchdog,glorizen/watchdog