mqttc = mqtt_client.Client(config['mqtt']['client_id'], userdata=can_bus)
mqttc.on_message = on_mqtt_message
mqttc.reconnect_delay_set(1, 10)
mqttc.will_set(config['mqtt']['will_topic'], '0xDEAD', 0, retain=True)
mqttc.connect(host=config['mqtt']['host'],
port=int(config['mqtt']['port']),
keepalive=60)
mqttc.loop_start()
mqttc.subscribe('{}/#'.format(config['mqtt']['prefix']), 0)
should_stop = False
while not should_stop:
try:
can_msg = can_bus.recv(5)
if can_msg:
mqtt_msg = can2mqtt(can_msg)
mqttc.publish(topic=mqtt_msg.topic,
payload=mqtt_msg.payload,
retain=False)
mqttc.publish(topic=config['mqtt']['will_topic'],
payload='{:d}'.format(int(time())),
retain=True)
except KeyboardInterrupt as e:
print('exiting on keyboard request')
should_stop = True
except Exception as e:
print(str(e))
mqttc.disconnect()
def test_can2mqtt_bad(bad_can_messages):
for can_frame in bad_can_messages:
with pytest.raises(ValueError):
can2mqtt(can_frame)
def test_can2mqtt_not_supported(mqtt_can_messages_not_supported):
for mqtt_msg, can_frame in mqtt_can_messages_not_supported:
with pytest.raises(HomeCanMessageNotSupported):
can2mqtt(can_frame)
def test_can2mqtt_ok(can_mqtt_messages):
for mqtt_msg, can_frame in can_mqtt_messages:
print(mqtt_msg.payload)
print(can2mqtt(can_frame).payload)
assert mqtt_msg == can2mqtt(can_frame)
def test_dust_sensor_invalid_frame(can2mqtt_messages_invalid):
for mqtt_msg, can_frame in can2mqtt_messages_invalid:
with pytest.raises(HomeCanBridgingForbidden):
msg = can2mqtt(can_frame)
def test_dust_sensor(can2mqtt_messages_valid):
for mqtt_msg, can_frame in can2mqtt_messages_valid:
assert mqtt_msg == can2mqtt(can_frame)