def METHOD_NAME(self) -> None:
    self.mock_store.is_partial_state_room.return_value = True
    d = ensureDeferred(self.tracker.await_full_state("room_id"))
    # there should be no result yet
    self.assertNoResult(d)
    # notifying that the room has been de-partial-stated should unblock
    self.tracker.notify_un_partial_stated("room_id")
    self.successResultOf(d)