Move state

homeassistant/components/binary_sensor/__init__.py

@@ -11,6 +11,7 @@ import logging
 
 from homeassistant.helpers.entity_component import EntityComponent
 from homeassistant.helpers.entity import Entity
+from homeassistant.const import (STATE_ON, STATE_OFF)
 
 DOMAIN = 'binary_sensor'
 DEPENDENCIES = []
@@ -31,12 +32,17 @@ def setup(hass, config):
 
 # pylint: disable=no-self-use
 class BinarySensorDevice(Entity):
-    """ Represents a binary sensor.. """
+    """ Represents a binary sensor. """
 
     @property
     def is_on(self):
         """ True if the binary sensor is on. """
-        return False
+        return None
+
+    @property
+    def state(self):
+        """ Returns the state of the binary sensor. """
+        return STATE_ON if self.is_on else STATE_OFF
 
     @property
     def friendly_state(self):

homeassistant/components/binary_sensor/demo.py

@@ -4,7 +4,6 @@ homeassistant.components.binary_sensor.demo
 Demo platform that has two fake binary sensors.
 """
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.const import (STATE_ON, STATE_OFF, DEVICE_DEFAULT_NAME)
 
 
 def setup_platform(hass, config, add_devices, discovery_info=None):
@@ -19,7 +18,7 @@ class DemoBinarySensor(BinarySensorDevice):
     """ A Demo binary sensor. """
 
     def __init__(self, name, state, icon=None):
-        self._name = name or DEVICE_DEFAULT_NAME
+        self._name = name
         self._state = state
         self._icon = icon
 
@@ -40,10 +39,5 @@ class DemoBinarySensor(BinarySensorDevice):
 
     @property
     def is_on(self):
-        """ True if the sensor is on. """
+        """ True if the binary sensor is on. """
         return self._state
-
-    @property
-    def state(self):
-        """ Returns the state of the binary sensor. """
-        return STATE_ON if self.is_on else STATE_OFF