Homekit Update, Support for TempSensor (°F) (#12676)

* Changed version of "HAP-python" to "v1.1.7"

* Updated acc file to simplify init calls

* Code refactored and '°F' temp Sensors added

* Changed call to 'HomeAccessory' and 'HomeBridge'
* Extended function of 'add_preload_service' to add additional characteristics
* Added function to override characteristic property values

* TemperatureSensor
  * Added unit
  * Added calc_temperature

* Updated tests

tests/components/homekit/test_sensors.py

@@ -1,13 +1,25 @@
 """Test different accessory types: Sensors."""
 import unittest
 
-from homeassistant.components.homekit.sensors import TemperatureSensor
+from homeassistant.components.homekit.sensors import (
+    TemperatureSensor, calc_temperature)
 from homeassistant.const import (
-    ATTR_UNIT_OF_MEASUREMENT, TEMP_CELSIUS, STATE_UNKNOWN)
+    ATTR_UNIT_OF_MEASUREMENT, TEMP_CELSIUS, TEMP_FAHRENHEIT, STATE_UNKNOWN)
 
 from tests.common import get_test_home_assistant
 
 
+def test_calc_temperature():
+    """Test if temperature in Celsius is calculated correctly."""
+    assert calc_temperature(STATE_UNKNOWN) is None
+
+    assert calc_temperature('20') == 20
+    assert calc_temperature('20.12', TEMP_CELSIUS) == 20.12
+
+    assert calc_temperature('75.2', TEMP_FAHRENHEIT) == 24
+    assert calc_temperature('-20.6', TEMP_FAHRENHEIT) == -29.22
+
+
 class TestHomekitSensors(unittest.TestCase):
     """Test class for all accessory types regarding sensors."""
 
@@ -16,7 +28,7 @@ class TestHomekitSensors(unittest.TestCase):
         self.hass = get_test_home_assistant()
 
     def tearDown(self):
-        """Stop down everthing that was started."""
+        """Stop down everything that was started."""
         self.hass.stop()
 
     def test_temperature_celsius(self):
@@ -32,6 +44,12 @@ class TestHomekitSensors(unittest.TestCase):
                              {ATTR_UNIT_OF_MEASUREMENT: TEMP_CELSIUS})
         self.hass.block_till_done()
 
-        self.hass.states.set(temperature_sensor, '20')
+        self.hass.states.set(temperature_sensor, '20',
+                             {ATTR_UNIT_OF_MEASUREMENT: TEMP_CELSIUS})
         self.hass.block_till_done()
         self.assertEqual(acc.char_temp.value, 20)
+
+        self.hass.states.set(temperature_sensor, '75.2',
+                             {ATTR_UNIT_OF_MEASUREMENT: TEMP_FAHRENHEIT})
+        self.hass.block_till_done()
+        self.assertEqual(acc.char_temp.value, 24)