123 lines
4.9 KiB
Python
123 lines
4.9 KiB
Python
"""Tests for MH-Z19 sensor."""
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import unittest
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from unittest.mock import patch, DEFAULT, Mock
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from homeassistant.setup import setup_component
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from homeassistant.components.sensor import DOMAIN
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import homeassistant.components.sensor.mhz19 as mhz19
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from homeassistant.const import TEMP_FAHRENHEIT
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from tests.common import get_test_home_assistant, assert_setup_component
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class TestMHZ19Sensor(unittest.TestCase):
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"""Test the MH-Z19 sensor."""
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hass = None
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def setup_method(self, method):
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"""Setup things to be run when tests are started."""
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self.hass = get_test_home_assistant()
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def teardown_method(self, method):
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"""Stop everything that was started."""
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self.hass.stop()
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def test_setup_missing_config(self):
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"""Test setup with configuration missing required entries."""
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with assert_setup_component(0):
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assert setup_component(self.hass, DOMAIN, {
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'sensor': {'platform': 'mhz19'}})
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@patch('pmsensor.co2sensor.read_mh_z19', side_effect=OSError('test error'))
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def test_setup_failed_connect(self, mock_co2):
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"""Test setup when connection error occurs."""
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self.assertFalse(mhz19.setup_platform(self.hass, {
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'platform': 'mhz19',
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mhz19.CONF_SERIAL_DEVICE: 'test.serial',
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}, None))
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def test_setup_connected(self):
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"""Test setup when connection succeeds."""
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with patch.multiple('pmsensor.co2sensor', read_mh_z19=DEFAULT,
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read_mh_z19_with_temperature=DEFAULT):
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from pmsensor.co2sensor import read_mh_z19_with_temperature
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read_mh_z19_with_temperature.return_value = None
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mock_add = Mock()
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self.assertTrue(mhz19.setup_platform(self.hass, {
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'platform': 'mhz19',
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'monitored_conditions': ['co2', 'temperature'],
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mhz19.CONF_SERIAL_DEVICE: 'test.serial',
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}, mock_add))
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self.assertEqual(1, mock_add.call_count)
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@patch('pmsensor.co2sensor.read_mh_z19_with_temperature',
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side_effect=OSError('test error'))
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def test_client_update_oserror(self, mock_function):
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"""Test MHZClient when library throws OSError."""
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from pmsensor import co2sensor
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client = mhz19.MHZClient(co2sensor, 'test.serial')
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client.update()
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self.assertEqual({}, client.data)
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@patch('pmsensor.co2sensor.read_mh_z19_with_temperature',
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return_value=(5001, 24))
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def test_client_update_ppm_overflow(self, mock_function):
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"""Test MHZClient when ppm is too high."""
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from pmsensor import co2sensor
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client = mhz19.MHZClient(co2sensor, 'test.serial')
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client.update()
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self.assertIsNone(client.data.get('co2'))
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@patch('pmsensor.co2sensor.read_mh_z19_with_temperature',
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return_value=(1000, 24))
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def test_client_update_good_read(self, mock_function):
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"""Test MHZClient when ppm is too high."""
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from pmsensor import co2sensor
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client = mhz19.MHZClient(co2sensor, 'test.serial')
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client.update()
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self.assertEqual({'temperature': 24, 'co2': 1000}, client.data)
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@patch('pmsensor.co2sensor.read_mh_z19_with_temperature',
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return_value=(1000, 24))
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def test_co2_sensor(self, mock_function):
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"""Test CO2 sensor."""
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from pmsensor import co2sensor
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client = mhz19.MHZClient(co2sensor, 'test.serial')
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sensor = mhz19.MHZ19Sensor(client, mhz19.SENSOR_CO2, None, 'name')
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sensor.update()
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self.assertEqual('name: CO2', sensor.name)
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self.assertEqual(1000, sensor.state)
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self.assertEqual('ppm', sensor.unit_of_measurement)
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self.assertTrue(sensor.should_poll)
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self.assertEqual({'temperature': 24}, sensor.device_state_attributes)
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@patch('pmsensor.co2sensor.read_mh_z19_with_temperature',
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return_value=(1000, 24))
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def test_temperature_sensor(self, mock_function):
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"""Test temperature sensor."""
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from pmsensor import co2sensor
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client = mhz19.MHZClient(co2sensor, 'test.serial')
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sensor = mhz19.MHZ19Sensor(
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client, mhz19.SENSOR_TEMPERATURE, None, 'name')
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sensor.update()
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self.assertEqual('name: Temperature', sensor.name)
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self.assertEqual(24, sensor.state)
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self.assertEqual('°C', sensor.unit_of_measurement)
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self.assertTrue(sensor.should_poll)
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self.assertEqual(
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{'co2_concentration': 1000}, sensor.device_state_attributes)
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@patch('pmsensor.co2sensor.read_mh_z19_with_temperature',
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return_value=(1000, 24))
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def test_temperature_sensor_f(self, mock_function):
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"""Test temperature sensor."""
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from pmsensor import co2sensor
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client = mhz19.MHZClient(co2sensor, 'test.serial')
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sensor = mhz19.MHZ19Sensor(
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client, mhz19.SENSOR_TEMPERATURE, TEMP_FAHRENHEIT, 'name')
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sensor.update()
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self.assertEqual(75.2, sensor.state)
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