test updates to take into account exception management

tests/unit/services/test_product_service.py

@@ -231,10 +231,13 @@ class TestProductService:
 
     def test_get_stock_info_success(self, db, test_product_with_stock):
         """Test getting stock info for product with stock"""
-        stock_info = self.service.get_stock_info(db, test_product_with_stock.gtin)
+        # Extract the product from the dictionary
+        product = test_product_with_stock['product']
+
+        stock_info = self.service.get_stock_info(db, product.gtin)
 
         assert stock_info is not None
-        assert stock_info.gtin == test_product_with_stock.gtin
+        assert stock_info.gtin == product.gtin
         assert stock_info.total_quantity > 0
         assert len(stock_info.locations) > 0