Great migration notify (#22406)

* Move notify platforms into components

* Move notify tests

* Fix notify tests

* More fixes

* Update requirements

* Update .coveragerc

* Run gen reqs

tests/components/command_line/test_notify.py

@@ -0,0 +1,83 @@
+"""The tests for the command line notification platform."""
+import os
+import tempfile
+import unittest
+from unittest.mock import patch
+
+from homeassistant.setup import setup_component
+import homeassistant.components.notify as notify
+from tests.common import assert_setup_component, get_test_home_assistant
+
+
+class TestCommandLine(unittest.TestCase):
+    """Test the command line notifications."""
+
+    def setUp(self):  # pylint: disable=invalid-name
+        """Set up things to be run when tests are started."""
+        self.hass = get_test_home_assistant()
+
+    def tearDown(self):  # pylint: disable=invalid-name
+        """Stop down everything that was started."""
+        self.hass.stop()
+
+    def test_setup(self):
+        """Test setup."""
+        with assert_setup_component(1) as handle_config:
+            assert setup_component(self.hass, 'notify', {
+                'notify': {
+                    'name': 'test',
+                    'platform': 'command_line',
+                    'command': 'echo $(cat); exit 1', }
+            })
+        assert handle_config[notify.DOMAIN]
+
+    def test_bad_config(self):
+        """Test set up the platform with bad/missing configuration."""
+        config = {
+            notify.DOMAIN: {
+                'name': 'test',
+                'platform': 'command_line',
+            }
+        }
+        with assert_setup_component(0) as handle_config:
+            assert setup_component(self.hass, notify.DOMAIN, config)
+        assert not handle_config[notify.DOMAIN]
+
+    def test_command_line_output(self):
+        """Test the command line output."""
+        with tempfile.TemporaryDirectory() as tempdirname:
+            filename = os.path.join(tempdirname, 'message.txt')
+            message = 'one, two, testing, testing'
+            with assert_setup_component(1) as handle_config:
+                assert setup_component(self.hass, notify.DOMAIN, {
+                    'notify': {
+                        'name': 'test',
+                        'platform': 'command_line',
+                        'command': 'echo $(cat) > {}'.format(filename)
+                    }
+                })
+            assert handle_config[notify.DOMAIN]
+
+            assert self.hass.services.call(
+                'notify', 'test', {'message': message}, blocking=True)
+
+            with open(filename) as fil:
+                # the echo command adds a line break
+                assert fil.read() == "{}\n".format(message)
+
+    @patch('homeassistant.components.command_line.notify._LOGGER.error')
+    def test_error_for_none_zero_exit_code(self, mock_error):
+        """Test if an error is logged for non zero exit codes."""
+        with assert_setup_component(1) as handle_config:
+            assert setup_component(self.hass, notify.DOMAIN, {
+                'notify': {
+                    'name': 'test',
+                    'platform': 'command_line',
+                    'command': 'echo $(cat); exit 1'
+                }
+            })
+        assert handle_config[notify.DOMAIN]
+
+        assert self.hass.services.call('notify', 'test', {'message': 'error'},
+                                       blocking=True)
+        assert 1 == mock_error.call_count