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/file/test_notify.py

@@ -0,0 +1,89 @@
+"""The tests for the notify file platform."""
+import os
+import unittest
+from unittest.mock import call, mock_open, patch
+
+from homeassistant.setup import setup_component
+import homeassistant.components.notify as notify
+from homeassistant.components.notify import (
+    ATTR_TITLE_DEFAULT)
+import homeassistant.util.dt as dt_util
+
+from tests.common import assert_setup_component, get_test_home_assistant
+
+
+class TestNotifyFile(unittest.TestCase):
+    """Test the file notify."""
+
+    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_bad_config(self):
+        """Test set up the platform with bad/missing config."""
+        config = {
+            notify.DOMAIN: {
+                'name': 'test',
+                'platform': 'file',
+            },
+        }
+        with assert_setup_component(0) as handle_config:
+            assert setup_component(self.hass, notify.DOMAIN, config)
+        assert not handle_config[notify.DOMAIN]
+
+    def _test_notify_file(self, timestamp):
+        """Test the notify file output."""
+        filename = 'mock_file'
+        message = 'one, two, testing, testing'
+        with assert_setup_component(1) as handle_config:
+            assert setup_component(self.hass, notify.DOMAIN, {
+                'notify': {
+                    'name': 'test',
+                    'platform': 'file',
+                    'filename': filename,
+                    'timestamp': timestamp,
+                }
+            })
+        assert handle_config[notify.DOMAIN]
+
+        m_open = mock_open()
+        with patch(
+            'homeassistant.components.file.notify.open',
+            m_open, create=True
+        ), patch('homeassistant.components.file.notify.os.stat') as mock_st, \
+            patch('homeassistant.util.dt.utcnow',
+                  return_value=dt_util.utcnow()):
+
+            mock_st.return_value.st_size = 0
+            title = '{} notifications (Log started: {})\n{}\n'.format(
+                ATTR_TITLE_DEFAULT,
+                dt_util.utcnow().isoformat(),
+                '-' * 80)
+
+            self.hass.services.call('notify', 'test', {'message': message},
+                                    blocking=True)
+
+            full_filename = os.path.join(self.hass.config.path(), filename)
+            assert m_open.call_count == 1
+            assert m_open.call_args == call(full_filename, 'a')
+
+            assert m_open.return_value.write.call_count == 2
+            if not timestamp:
+                assert m_open.return_value.write.call_args_list == \
+                    [call(title), call('{}\n'.format(message))]
+            else:
+                assert m_open.return_value.write.call_args_list == \
+                    [call(title), call('{} {}\n'.format(
+                        dt_util.utcnow().isoformat(), message))]
+
+    def test_notify_file(self):
+        """Test the notify file output without timestamp."""
+        self._test_notify_file(False)
+
+    def test_notify_file_timestamp(self):
+        """Test the notify file output with timestamp."""
+        self._test_notify_file(True)