Consolidate all platforms that have no tests (#22096)

* Consolidate

* Fix tests

* Update imports

* Fix import

* Use importlib because integration and package share name

* Fix more tests

* Update .coveragerc and CODEOWNERS

homeassistant/components/dht/sensor.py

@@ -0,0 +1,160 @@
+"""
+Support for Adafruit DHT temperature and humidity sensor.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/sensor.dht/
+"""
+import logging
+from datetime import timedelta
+
+import voluptuous as vol
+
+from homeassistant.components.sensor import PLATFORM_SCHEMA
+import homeassistant.helpers.config_validation as cv
+from homeassistant.const import (
+    TEMP_FAHRENHEIT, CONF_NAME, CONF_MONITORED_CONDITIONS)
+from homeassistant.helpers.entity import Entity
+from homeassistant.util import Throttle
+from homeassistant.util.temperature import celsius_to_fahrenheit
+
+REQUIREMENTS = ['Adafruit-DHT==1.4.0']
+
+_LOGGER = logging.getLogger(__name__)
+
+CONF_PIN = 'pin'
+CONF_SENSOR = 'sensor'
+CONF_HUMIDITY_OFFSET = 'humidity_offset'
+CONF_TEMPERATURE_OFFSET = 'temperature_offset'
+
+DEFAULT_NAME = 'DHT Sensor'
+
+# DHT11 is able to deliver data once per second, DHT22 once every two
+MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=30)
+
+SENSOR_TEMPERATURE = 'temperature'
+SENSOR_HUMIDITY = 'humidity'
+SENSOR_TYPES = {
+    SENSOR_TEMPERATURE: ['Temperature', None],
+    SENSOR_HUMIDITY: ['Humidity', '%']
+}
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_SENSOR): cv.string,
+    vol.Required(CONF_PIN): cv.string,
+    vol.Optional(CONF_MONITORED_CONDITIONS, default=[]):
+        vol.All(cv.ensure_list, [vol.In(SENSOR_TYPES)]),
+    vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
+    vol.Optional(CONF_TEMPERATURE_OFFSET, default=0):
+        vol.All(vol.Coerce(float), vol.Range(min=-100, max=100)),
+    vol.Optional(CONF_HUMIDITY_OFFSET, default=0):
+        vol.All(vol.Coerce(float), vol.Range(min=-100, max=100))
+})
+
+
+def setup_platform(hass, config, add_entities, discovery_info=None):
+    """Set up the DHT sensor."""
+    import Adafruit_DHT  # pylint: disable=import-error
+
+    SENSOR_TYPES[SENSOR_TEMPERATURE][1] = hass.config.units.temperature_unit
+    available_sensors = {
+        "AM2302": Adafruit_DHT.AM2302,
+        "DHT11": Adafruit_DHT.DHT11,
+        "DHT22": Adafruit_DHT.DHT22,
+    }
+    sensor = available_sensors.get(config.get(CONF_SENSOR))
+    pin = config.get(CONF_PIN)
+    temperature_offset = config.get(CONF_TEMPERATURE_OFFSET)
+    humidity_offset = config.get(CONF_HUMIDITY_OFFSET)
+
+    if not sensor:
+        _LOGGER.error("DHT sensor type is not supported")
+        return False
+
+    data = DHTClient(Adafruit_DHT, sensor, pin)
+    dev = []
+    name = config.get(CONF_NAME)
+
+    try:
+        for variable in config[CONF_MONITORED_CONDITIONS]:
+            dev.append(DHTSensor(
+                data, variable, SENSOR_TYPES[variable][1], name,
+                temperature_offset, humidity_offset))
+    except KeyError:
+        pass
+
+    add_entities(dev, True)
+
+
+class DHTSensor(Entity):
+    """Implementation of the DHT sensor."""
+
+    def __init__(self, dht_client, sensor_type, temp_unit, name,
+                 temperature_offset, humidity_offset):
+        """Initialize the sensor."""
+        self.client_name = name
+        self._name = SENSOR_TYPES[sensor_type][0]
+        self.dht_client = dht_client
+        self.temp_unit = temp_unit
+        self.type = sensor_type
+        self.temperature_offset = temperature_offset
+        self.humidity_offset = humidity_offset
+        self._state = None
+        self._unit_of_measurement = SENSOR_TYPES[sensor_type][1]
+
+    @property
+    def name(self):
+        """Return the name of the sensor."""
+        return '{} {}'.format(self.client_name, self._name)
+
+    @property
+    def state(self):
+        """Return the state of the sensor."""
+        return self._state
+
+    @property
+    def unit_of_measurement(self):
+        """Return the unit of measurement of this entity, if any."""
+        return self._unit_of_measurement
+
+    def update(self):
+        """Get the latest data from the DHT and updates the states."""
+        self.dht_client.update()
+        temperature_offset = self.temperature_offset
+        humidity_offset = self.humidity_offset
+        data = self.dht_client.data
+
+        if self.type == SENSOR_TEMPERATURE and SENSOR_TEMPERATURE in data:
+            temperature = data[SENSOR_TEMPERATURE]
+            _LOGGER.debug("Temperature %.1f \u00b0C + offset %.1f",
+                          temperature, temperature_offset)
+            if -20 <= temperature < 80:
+                self._state = round(temperature + temperature_offset, 1)
+                if self.temp_unit == TEMP_FAHRENHEIT:
+                    self._state = round(celsius_to_fahrenheit(temperature), 1)
+        elif self.type == SENSOR_HUMIDITY and SENSOR_HUMIDITY in data:
+            humidity = data[SENSOR_HUMIDITY]
+            _LOGGER.debug("Humidity %.1f%% + offset %.1f",
+                          humidity, humidity_offset)
+            if 0 <= humidity <= 100:
+                self._state = round(humidity + humidity_offset, 1)
+
+
+class DHTClient:
+    """Get the latest data from the DHT sensor."""
+
+    def __init__(self, adafruit_dht, sensor, pin):
+        """Initialize the sensor."""
+        self.adafruit_dht = adafruit_dht
+        self.sensor = sensor
+        self.pin = pin
+        self.data = dict()
+
+    @Throttle(MIN_TIME_BETWEEN_UPDATES)
+    def update(self):
+        """Get the latest data the DHT sensor."""
+        humidity, temperature = self.adafruit_dht.read_retry(
+            self.sensor, self.pin)
+        if temperature:
+            self.data[SENSOR_TEMPERATURE] = temperature
+        if humidity:
+            self.data[SENSOR_HUMIDITY] = humidity