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test_mqtt.py
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test_mqtt.py
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"""
tests.test_component_mqtt
~~~~~~~~~~~~~~~~~~~~~~~~~
Tests MQTT component.
"""
from collections import namedtuple
import unittest
from unittest import mock
import socket
import homeassistant.components.mqtt as mqtt
from homeassistant.const import (
EVENT_CALL_SERVICE, ATTR_DOMAIN, ATTR_SERVICE, EVENT_HOMEASSISTANT_START,
EVENT_HOMEASSISTANT_STOP)
from tests.common import (
get_test_home_assistant, mock_mqtt_component, fire_mqtt_message)
class TestMQTT(unittest.TestCase):
""" Test the MQTT module. """
def setUp(self): # pylint: disable=invalid-name
self.hass = get_test_home_assistant(1)
mock_mqtt_component(self.hass)
self.calls = []
def tearDown(self): # pylint: disable=invalid-name
""" Stop down stuff we started. """
self.hass.stop()
def record_calls(self, *args):
self.calls.append(args)
def test_client_starts_on_home_assistant_start(self):
self.hass.bus.fire(EVENT_HOMEASSISTANT_START)
self.hass.pool.block_till_done()
self.assertTrue(mqtt.MQTT_CLIENT.start.called)
def test_client_stops_on_home_assistant_start(self):
self.hass.bus.fire(EVENT_HOMEASSISTANT_START)
self.hass.pool.block_till_done()
self.hass.bus.fire(EVENT_HOMEASSISTANT_STOP)
self.hass.pool.block_till_done()
self.assertTrue(mqtt.MQTT_CLIENT.stop.called)
def test_setup_fails_if_no_broker_config(self):
self.assertFalse(mqtt.setup(self.hass, {mqtt.DOMAIN: {}}))
def test_setup_fails_if_no_connect_broker(self):
with mock.patch('homeassistant.components.mqtt.MQTT',
side_effect=socket.error()):
self.assertFalse(mqtt.setup(self.hass, {mqtt.DOMAIN: {
mqtt.CONF_BROKER: 'test-broker',
}}))
def test_publish_calls_service(self):
self.hass.bus.listen_once(EVENT_CALL_SERVICE, self.record_calls)
mqtt.publish(self.hass, 'test-topic', 'test-payload')
self.hass.pool.block_till_done()
self.assertEqual(1, len(self.calls))
self.assertEqual('test-topic', self.calls[0][0].data[mqtt.ATTR_TOPIC])
self.assertEqual('test-payload', self.calls[0][0].data[mqtt.ATTR_PAYLOAD])
def test_service_call_without_topic_does_not_publush(self):
self.hass.bus.fire(EVENT_CALL_SERVICE, {
ATTR_DOMAIN: mqtt.DOMAIN,
ATTR_SERVICE: mqtt.SERVICE_PUBLISH
})
self.hass.pool.block_till_done()
self.assertTrue(not mqtt.MQTT_CLIENT.publish.called)
def test_subscribe_topic(self):
mqtt.subscribe(self.hass, 'test-topic', self.record_calls)
fire_mqtt_message(self.hass, 'test-topic', 'test-payload')
self.hass.pool.block_till_done()
self.assertEqual(1, len(self.calls))
self.assertEqual('test-topic', self.calls[0][0])
self.assertEqual('test-payload', self.calls[0][1])
def test_subscribe_topic_not_match(self):
mqtt.subscribe(self.hass, 'test-topic', self.record_calls)
fire_mqtt_message(self.hass, 'another-test-topic', 'test-payload')
self.hass.pool.block_till_done()
self.assertEqual(0, len(self.calls))
def test_subscribe_topic_level_wildcard(self):
mqtt.subscribe(self.hass, 'test-topic/+/on', self.record_calls)
fire_mqtt_message(self.hass, 'test-topic/bier/on', 'test-payload')
self.hass.pool.block_till_done()
self.assertEqual(1, len(self.calls))
self.assertEqual('test-topic/bier/on', self.calls[0][0])
self.assertEqual('test-payload', self.calls[0][1])
def test_subscribe_topic_level_wildcard_no_subtree_match(self):
mqtt.subscribe(self.hass, 'test-topic/+/on', self.record_calls)
fire_mqtt_message(self.hass, 'test-topic/bier', 'test-payload')
self.hass.pool.block_till_done()
self.assertEqual(0, len(self.calls))
def test_subscribe_topic_subtree_wildcard_subtree_topic(self):
mqtt.subscribe(self.hass, 'test-topic/#', self.record_calls)
fire_mqtt_message(self.hass, 'test-topic/bier/on', 'test-payload')
self.hass.pool.block_till_done()
self.assertEqual(1, len(self.calls))
self.assertEqual('test-topic/bier/on', self.calls[0][0])
self.assertEqual('test-payload', self.calls[0][1])
def test_subscribe_topic_subtree_wildcard_root_topic(self):
mqtt.subscribe(self.hass, 'test-topic/#', self.record_calls)
fire_mqtt_message(self.hass, 'test-topic', 'test-payload')
self.hass.pool.block_till_done()
self.assertEqual(1, len(self.calls))
self.assertEqual('test-topic', self.calls[0][0])
self.assertEqual('test-payload', self.calls[0][1])
def test_subscribe_topic_subtree_wildcard_no_match(self):
mqtt.subscribe(self.hass, 'test-topic/#', self.record_calls)
fire_mqtt_message(self.hass, 'another-test-topic', 'test-payload')
self.hass.pool.block_till_done()
self.assertEqual(0, len(self.calls))
class TestMQTTCallbacks(unittest.TestCase):
""" Test the MQTT callbacks. """
def setUp(self): # pylint: disable=invalid-name
self.hass = get_test_home_assistant(1)
mock_mqtt_component(self.hass)
self.calls = []
def tearDown(self): # pylint: disable=invalid-name
""" Stop down stuff we started. """
self.hass.stop()
def test_receiving_mqtt_message_fires_hass_event(self):
calls = []
def record(event):
calls.append(event)
self.hass.bus.listen_once(mqtt.EVENT_MQTT_MESSAGE_RECEIVED, record)
MQTTMessage = namedtuple('MQTTMessage', ['topic', 'qos', 'payload'])
message = MQTTMessage('test_topic', 1, 'Hello World!'.encode('utf-8'))
mqtt._mqtt_on_message(None, {'hass': self.hass}, message)
self.hass.pool.block_till_done()
self.assertEqual(1, len(calls))
last_event = calls[0]
self.assertEqual('Hello World!', last_event.data['payload'])
self.assertEqual(message.topic, last_event.data['topic'])
self.assertEqual(message.qos, last_event.data['qos'])
def test_mqtt_failed_connection_results_in_disconnect(self):
for result_code in range(1, 6):
mqttc = mock.MagicMock()
mqtt._mqtt_on_connect(mqttc, {'topics': {}}, 0, result_code)
self.assertTrue(mqttc.disconnect.called)
def test_mqtt_subscribes_topics_on_connect(self):
prev_topics = {
'topic/test': 1,
'home/sensor': 2,
'still/pending': None
}
mqttc = mock.MagicMock()
mqtt._mqtt_on_connect(mqttc, {'topics': prev_topics}, 0, 0)
self.assertFalse(mqttc.disconnect.called)
expected = [(topic, qos) for topic, qos in prev_topics.items()
if qos is not None]
self.assertEqual(expected, [call[1] for call
in mqttc.subscribe.mock_calls])
def test_mqtt_disconnect_tries_no_reconnect_on_stop(self):
mqttc = mock.MagicMock()
mqtt._mqtt_on_disconnect(mqttc, {}, 0)
self.assertFalse(mqttc.reconnect.called)
@mock.patch('homeassistant.components.mqtt.time.sleep')
def test_mqtt_disconnect_tries_reconnect(self, mock_sleep):
mqttc = mock.MagicMock()
mqttc.reconnect.side_effect = [1, 1, 1, 0]
mqtt._mqtt_on_disconnect(mqttc, {}, 1)
self.assertTrue(mqttc.reconnect.called)
self.assertEqual(4, len(mqttc.reconnect.mock_calls))
self.assertEqual([1, 2, 4],
[call[1][0] for call in mock_sleep.mock_calls])