Google Assistant request sync service (#10165)

* Initial commit for request_sync functionality

* Fixes for Tox results

* Fixed all tox issues and tested locally with GA

* Review comments - api_key, conditional read descriptions

* Add test for service

tests/components/google_assistant/test_init.py

@@ -0,0 +1,31 @@
+"""The tests for google-assistant init."""
+import asyncio
+
+from homeassistant.setup import async_setup_component
+from homeassistant.components import google_assistant as ga
+
+GA_API_KEY = "Agdgjsj399sdfkosd932ksd"
+GA_AGENT_USER_ID = "testid"
+
+
+@asyncio.coroutine
+def test_request_sync_service(aioclient_mock, hass):
+    """Test that it posts to the request_sync url."""
+    aioclient_mock.post(
+        ga.const.REQUEST_SYNC_BASE_URL, status=200)
+
+    yield from async_setup_component(hass, 'google_assistant', {
+        'google_assistant': {
+            'project_id': 'test_project',
+            'client_id': 'r7328kwdsdfsdf03223409',
+            'access_token': '8wdsfjsf932492342349234',
+            'agent_user_id': GA_AGENT_USER_ID,
+            'api_key': GA_API_KEY
+        }})
+
+    assert aioclient_mock.call_count == 0
+    yield from hass.services.async_call(ga.const.DOMAIN,
+                                        ga.const.SERVICE_REQUEST_SYNC,
+                                        blocking=True)
+
+    assert aioclient_mock.call_count == 1