Move core service from core to components (#5787)

* Move core servcie from core to components

* add new handler for signals/exception

* Static persistent id

* Move unittest

* fix coro/callback

* Add more unittest for new services

* Address comments

* Update __init__.py

tests/components/test_init.py

@@ -11,11 +11,12 @@ from homeassistant import config
 from homeassistant.const import (
     STATE_ON, STATE_OFF, SERVICE_TURN_ON, SERVICE_TURN_OFF, SERVICE_TOGGLE)
 import homeassistant.components as comps
+from homeassistant.exceptions import HomeAssistantError
 from homeassistant.helpers import entity
 from homeassistant.util.async import run_coroutine_threadsafe
 
 from tests.common import (
-    get_test_home_assistant, mock_service, patch_yaml_files)
+    get_test_home_assistant, mock_service, patch_yaml_files, mock_coro)
 
 
 class TestComponentsCore(unittest.TestCase):
@@ -150,3 +151,44 @@ class TestComponentsCore(unittest.TestCase):
 
         assert mock_error.called
         assert mock_process.called is False
+
+    @patch('homeassistant.core.HomeAssistant.async_stop',
+           return_value=mock_coro()())
+    def test_stop_homeassistant(self, mock_stop):
+        """Test stop service."""
+        comps.stop(self.hass)
+        self.hass.block_till_done()
+        assert mock_stop.called
+
+    @patch('homeassistant.core.HomeAssistant.async_stop',
+           return_value=mock_coro()())
+    @patch('homeassistant.config.async_check_ha_config_file',
+           return_value=mock_coro()())
+    def test_restart_homeassistant(self, mock_check, mock_restart):
+        """Test stop service."""
+        comps.restart(self.hass)
+        self.hass.block_till_done()
+        assert mock_restart.called
+        assert mock_check.called
+
+    @patch('homeassistant.core.HomeAssistant.async_stop',
+           return_value=mock_coro()())
+    @patch('homeassistant.config.async_check_ha_config_file',
+           side_effect=HomeAssistantError("Test error"))
+    def test_restart_homeassistant_wrong_conf(self, mock_check, mock_restart):
+        """Test stop service."""
+        comps.restart(self.hass)
+        self.hass.block_till_done()
+        assert mock_check.called
+        assert not mock_restart.called
+
+    @patch('homeassistant.core.HomeAssistant.async_stop',
+           return_value=mock_coro()())
+    @patch('homeassistant.config.async_check_ha_config_file',
+           return_value=mock_coro()())
+    def test_check_config(self, mock_check, mock_stop):
+        """Test stop service."""
+        comps.check_config(self.hass)
+        self.hass.block_till_done()
+        assert mock_check.called
+        assert not mock_stop.called