Improved Homekit tests (#12800)

* Added test for temperature fahrenheit

* Restructured tests to use more mocks

* Rearanged homekit constants

* Improved 'test_homekit_class'

* Added import statements

* Fix Pylint Test errors

homeassistant/components/homekit/const.py

@@ -1,21 +1,24 @@
 """Constants used be the HomeKit component."""
 MANUFACTURER = 'HomeAssistant'
 
-# Service: AccessoryInfomation
+# Services
 SERV_ACCESSORY_INFO = 'AccessoryInformation'
-CHAR_MODEL = 'Model'
-CHAR_MANUFACTURER = 'Manufacturer'
-CHAR_SERIAL_NUMBER = 'SerialNumber'
-
-# Service: TemperatureSensor
+SERV_BRIDGING_STATE = 'BridgingState'
 SERV_TEMPERATURE_SENSOR = 'TemperatureSensor'
-CHAR_CURRENT_TEMPERATURE = 'CurrentTemperature'
-
-# Service: WindowCovering
 SERV_WINDOW_COVERING = 'WindowCovering'
+
+# Characteristics
+CHAR_ACC_IDENTIFIER = 'AccessoryIdentifier'
+CHAR_CATEGORY = 'Category'
 CHAR_CURRENT_POSITION = 'CurrentPosition'
-CHAR_TARGET_POSITION = 'TargetPosition'
+CHAR_CURRENT_TEMPERATURE = 'CurrentTemperature'
+CHAR_LINK_QUALITY = 'LinkQuality'
+CHAR_MANUFACTURER = 'Manufacturer'
+CHAR_MODEL = 'Model'
 CHAR_POSITION_STATE = 'PositionState'
+CHAR_REACHABLE = 'Reachable'
+CHAR_SERIAL_NUMBER = 'SerialNumber'
+CHAR_TARGET_POSITION = 'TargetPosition'
 
 # Properties
 PROP_CELSIUS = {'minValue': -273, 'maxValue': 999}