Added fast forward and rewind support to the Alexa cloud/smart home c…

…omponent. It simply invokes the next and previous track functions.

homeassistant/components/alexa/smart_home.py

@@ -1357,6 +1357,24 @@ def async_api_previous(hass, config, request, entity):
     return api_message(request)
 
 
+@HANDLERS.register(('Alexa.PlaybackController', 'FastForward'))
+@extract_entity
+@asyncio.coroutine
+def async_api_fastforward(hass, config, request, entity):
+    """Process a fast forward request."""
+    # pylint: disable=no-value-for-parameter
+    return (yield from async_api_next(hass, config, request))
+
+
+@HANDLERS.register(('Alexa.PlaybackController', 'Rewind'))
+@extract_entity
+@asyncio.coroutine
+def async_api_rewind(hass, config, request, entity):
+    """Process a rewind request."""
+    # pylint: disable=no-value-for-parameter
+    return (yield from async_api_previous(hass, config, request))
+
+
 def api_error_temp_range(request, temp, min_temp, max_temp, unit):
     """Create temperature value out of range API error response.
 

tests/components/alexa/test_smart_home.py

@@ -470,6 +470,16 @@ def test_media_player(hass):
         'media_player.media_previous_track',
         hass)
 
+    yield from assert_request_calls_service(
+        'Alexa.PlaybackController', 'FastForward', 'media_player#test',
+        'media_player.media_next_track',
+        hass)
+
+    yield from assert_request_calls_service(
+        'Alexa.PlaybackController', 'Rewind', 'media_player#test',
+        'media_player.media_previous_track',
+        hass)
+
     call, _ = yield from assert_request_calls_service(
         'Alexa.Speaker', 'SetVolume', 'media_player#test',
         'media_player.volume_set',