def json_field_test(self):
holder = Holder()
h = holder.json()
j = json.loads(h)
assert 'rfid' in j
assert 'rfid_stamp' in j
assert 'port' in j
assert 'baudrate' in j
assert 'connection_stamp' in j
assert 'connection_status' in j
assert 'connection_time' in j
def rfid_test(self):
holder = Holder()
stamp = holder.rfid_stamp
holder.set_rfid('12345')
assert holder.rfid_stamp != stamp
