Enhance SmartThings component subscription (#21124)

* Move to config v2 to store SmartApp oauth keys

* Add migration functionality.

* Regenerate refresh token on periodic basis

* Fix regenerate and misc. optimizations

* Review feedback

* Subscription sync logic now performs a difference operation

* Removed config entry reloading.

tests/components/smartthings/conftest.py

@@ -4,8 +4,8 @@ from unittest.mock import Mock, patch
 from uuid import uuid4
 
 from pysmartthings import (
-    CLASSIFICATION_AUTOMATION, AppEntity, AppSettings, DeviceEntity,
-    InstalledApp, Location)
+    CLASSIFICATION_AUTOMATION, AppEntity, AppOAuthClient, AppSettings,
+    DeviceEntity, InstalledApp, Location, Subscription)
 from pysmartthings.api import Api
 import pytest
 
@@ -13,8 +13,9 @@ from homeassistant.components import webhook
 from homeassistant.components.smartthings import DeviceBroker
 from homeassistant.components.smartthings.const import (
     APP_NAME_PREFIX, CONF_APP_ID, CONF_INSTALLED_APP_ID, CONF_INSTANCE_ID,
-    CONF_LOCATION_ID, DATA_BROKERS, DOMAIN, SETTINGS_INSTANCE_ID, STORAGE_KEY,
-    STORAGE_VERSION)
+    CONF_LOCATION_ID, CONF_OAUTH_CLIENT_ID, CONF_OAUTH_CLIENT_SECRET,
+    CONF_REFRESH_TOKEN, DATA_BROKERS, DOMAIN, SETTINGS_INSTANCE_ID,
+    STORAGE_KEY, STORAGE_VERSION)
 from homeassistant.config_entries import (
     CONN_CLASS_CLOUD_PUSH, SOURCE_USER, ConfigEntry)
 from homeassistant.const import CONF_ACCESS_TOKEN, CONF_WEBHOOK_ID
@@ -26,9 +27,11 @@ from tests.common import mock_coro
 async def setup_platform(hass, platform: str, *devices):
     """Set up the SmartThings platform and prerequisites."""
     hass.config.components.add(DOMAIN)
-    broker = DeviceBroker(hass, devices, '')
-    config_entry = ConfigEntry("1", DOMAIN, "Test", {},
+    config_entry = ConfigEntry(2, DOMAIN, "Test",
+                               {CONF_INSTALLED_APP_ID:  str(uuid4())},
                                SOURCE_USER, CONN_CLASS_CLOUD_PUSH)
+    broker = DeviceBroker(hass, config_entry, Mock(), Mock(), devices)
+
     hass.data[DOMAIN] = {
         DATA_BROKERS: {
             config_entry.entry_id: broker
@@ -98,6 +101,15 @@ def app_fixture(hass, config_file):
     return app
 
 
+@pytest.fixture(name="app_oauth_client")
+def app_oauth_client_fixture():
+    """Fixture for a single app's oauth."""
+    return AppOAuthClient({
+        'oauthClientId': str(uuid4()),
+        'oauthClientSecret': str(uuid4())
+    })
+
+
 @pytest.fixture(name='app_settings')
 def app_settings_fixture(app, config_file):
     """Fixture for an app settings."""
@@ -225,12 +237,25 @@ def config_entry_fixture(hass, installed_app, location):
         CONF_ACCESS_TOKEN: str(uuid4()),
         CONF_INSTALLED_APP_ID: installed_app.installed_app_id,
         CONF_APP_ID: installed_app.app_id,
-        CONF_LOCATION_ID: location.location_id
+        CONF_LOCATION_ID: location.location_id,
+        CONF_REFRESH_TOKEN: str(uuid4()),
+        CONF_OAUTH_CLIENT_ID: str(uuid4()),
+        CONF_OAUTH_CLIENT_SECRET: str(uuid4())
     }
-    return ConfigEntry("1", DOMAIN, location.name, data, SOURCE_USER,
+    return ConfigEntry(2, DOMAIN, location.name, data, SOURCE_USER,
                        CONN_CLASS_CLOUD_PUSH)
 
 
+@pytest.fixture(name="subscription_factory")
+def subscription_factory_fixture():
+    """Fixture for creating mock subscriptions."""
+    def _factory(capability):
+        sub = Subscription()
+        sub.capability = capability
+        return sub
+    return _factory
+
+
 @pytest.fixture(name="device_factory")
 def device_factory_fixture():
     """Fixture for creating mock devices."""