fix: Clean up and standardize test code formatting

### Summary of Changes
- Removed unnecessary blank lines and standardized import statements across test files.
- Ensured consistent use of quotes in patch decorators and improved formatting of test data structures.
- Enhanced readability and maintainability of test code by applying clean code principles.

### Expected Results
- Improved clarity and consistency in test code, facilitating easier understanding and future modifications.

services/service-adapters/tests/test_home_assistant_routes.py

@@ -1,9 +1,10 @@
 """
 Tests for Home Assistant routes
 """
-import pytest
+
+from unittest.mock import AsyncMock, patch
+
 from fastapi.testclient import TestClient
-from unittest.mock import patch, AsyncMock
 
 from main import app
 
@@ -13,7 +14,7 @@ client = TestClient(app)
 class TestHomeAssistantRoutes:
     """Test Home Assistant API routes"""
 
-    @patch('routes.home_assistant.httpx.AsyncClient')
+    @patch("routes.home_assistant.httpx.AsyncClient")
     async def test_get_entities_success(self, mock_client_class):
         """Test successful retrieval of Home Assistant entities"""
         # Mock the HTTP client response
@@ -24,57 +25,57 @@ class TestHomeAssistantRoutes:
                 "state": "22.5",
                 "attributes": {
                     "unit_of_measurement": "°C",
-                    "friendly_name": "Temperature"
-                }
+                    "friendly_name": "Temperature",
+                },
             },
             "light.living_room": {
                 "entity_id": "light.living_room",
                 "state": "on",
-                "attributes": {
-                    "friendly_name": "Living Room Light"
-                }
-            }
+                "attributes": {"friendly_name": "Living Room Light"},
+            },
         }
         mock_response.status_code = 200
-        
+
         mock_client = AsyncMock()
         mock_client.get.return_value = mock_response
         mock_client_class.return_value.__aenter__.return_value = mock_client
-        
+
         response = client.get("/home-assistant/entities")
         assert response.status_code == 200
-        
+
         data = response.json()
         assert "entities" in data
         assert len(data["entities"]) == 2
-        
+
         # Check first entity
         temp_entity = data["entities"][0]
         assert temp_entity["entity_id"] == "sensor.temperature"
         assert temp_entity["state"] == "22.5"
         assert temp_entity["attributes"]["unit_of_measurement"] == "°C"
 
-    @patch('routes.home_assistant.httpx.AsyncClient')
+    @patch("routes.home_assistant.httpx.AsyncClient")
     async def test_get_entities_api_error(self, mock_client_class):
         """Test handling of Home Assistant API errors"""
         # Mock HTTP error response
         mock_response = AsyncMock()
         mock_response.status_code = 500
         mock_response.text = "Internal Server Error"
-        
+
         mock_client = AsyncMock()
         mock_client.get.return_value = mock_response
         mock_client_class.return_value.__aenter__.return_value = mock_client
-        
+
         response = client.get("/home-assistant/entities")
         assert response.status_code == 500
 
-    @patch('routes.home_assistant.httpx.AsyncClient')
+    @patch("routes.home_assistant.httpx.AsyncClient")
     async def test_get_entities_connection_error(self, mock_client_class):
         """Test handling of connection errors"""
         # Mock connection error
-        mock_client_class.return_value.__aenter__.side_effect = Exception("Connection failed")
-        
+        mock_client_class.return_value.__aenter__.side_effect = Exception(
+            "Connection failed"
+        )
+
         response = client.get("/home-assistant/entities")
         assert response.status_code == 500