def test_rm(self, exist, stop, osd_obj):
q = OSDQueue()
q.add(osd_obj)
q.rm(osd_obj)
osd_obj.stop.assert_called_once()
def test_queue_size(self, osd_obj):
q = OSDQueue()
assert q.queue_size() == 0
q.add(osd_obj)
assert q.queue_size() == 1