feat: enhance mock database store with context manager support and improve cursor behavior

tests/unit/test_config_repositories.py

@@ -36,6 +36,7 @@ def test_config_setting_repository_create_setting(mock_store):
     # Mock database connection
     with patch.object(mock_store, "connect") as mock_connect:
         mock_cursor = Mock()
+        mock_cursor.execute.return_value = mock_cursor
         mock_connect.return_value.__enter__.return_value = mock_cursor
 
         # Mock the return value
@@ -79,6 +80,7 @@ def test_config_setting_repository_get_setting(mock_store):
     # Mock database connection
     with patch.object(mock_store, "connect") as mock_connect:
         mock_cursor = Mock()
+        mock_cursor.execute.return_value = mock_cursor
         mock_connect.return_value.__enter__.return_value = mock_cursor
 
         # Mock the return value
@@ -112,6 +114,7 @@ def test_config_setting_repository_update_setting(mock_store):
     # Mock database connection
     with patch.object(mock_store, "connect") as mock_connect:
         mock_cursor = Mock()
+        mock_cursor.execute.return_value = mock_cursor
         mock_connect.return_value.__enter__.return_value = mock_cursor
 
         # Mock the return value
@@ -155,6 +158,7 @@ def test_config_setting_repository_list_settings(mock_store):
     # Mock database connection
     with patch.object(mock_store, "connect") as mock_connect:
         mock_cursor = Mock()
+        mock_cursor.execute.return_value = mock_cursor
         mock_connect.return_value.__enter__.return_value = mock_cursor
 
         # Mock the return value
@@ -198,6 +202,7 @@ def test_config_setting_repository_get_latest_updated_at(mock_store):
     # Mock database connection
     with patch.object(mock_store, "connect") as mock_connect:
         mock_cursor = Mock()
+        mock_cursor.execute.return_value = mock_cursor
         mock_connect.return_value.__enter__.return_value = mock_cursor
 
         # Mock the return value
@@ -224,6 +229,7 @@ def test_config_pairing_repository_create_pairing(mock_store):
     # Mock database connection
     with patch.object(mock_store, "connect") as mock_connect:
         mock_cursor = Mock()
+        mock_cursor.execute.return_value = mock_cursor
         mock_connect.return_value.__enter__.return_value = mock_cursor
 
         # Mock the return value
@@ -238,7 +244,8 @@ def test_config_pairing_repository_create_pairing(mock_store):
         ]
 
         # Create pairing
-        pairing = ConfigPairing(base_asset="BTC", quote_asset="USD", enabled=True, source="Kraken")
+        pairing = ConfigPairing(
+            base_asset="BTC", quote_asset="USD", enabled=True, source="Kraken")
 
         result = repo.create_pairing(pairing)
 
@@ -257,6 +264,7 @@ def test_config_pairing_repository_get_pairing(mock_store):
     # Mock database connection
     with patch.object(mock_store, "connect") as mock_connect:
         mock_cursor = Mock()
+        mock_cursor.execute.return_value = mock_cursor
         mock_connect.return_value.__enter__.return_value = mock_cursor
 
         # Mock the return value