Fixe (partially) gift tests and api

backend/tests/conftest.py

@@ -25,7 +25,7 @@ pytest_plugins = ["pytest_asyncio"]
 def db_session():
     """
     Creates a fresh SQLite in-memory database for each test function.
-    
+
     Yields a SQLAlchemy session that can be used for testing.
     """
     # Set up the database
@@ -340,17 +340,27 @@ def gift_category_fixture(db_session, mock_user, mock_event):
     """
     Fixture to create and return a GiftCategory instance.
     """
+    # Create the category without event_id and display_order
     gift_category = GiftCategory(
         id=uuid.uuid4(),
         name="Electronics",
         description="Category for electronic gifts",
-        event_id=mock_event.id,
-        created_by=mock_user.id,
-        display_order=0,
-        is_visible=True
+        created_by=mock_user.id
     )
     db_session.add(gift_category)
     db_session.commit()
+
+    # Create the association between the category and the event
+    from app.models.gift import EventGiftCategory
+    event_gift_category = EventGiftCategory(
+        event_id=mock_event.id,
+        category_id=gift_category.id,
+        display_order=0,
+        is_visible=True
+    )
+    db_session.add(event_gift_category)
+    db_session.commit()
+
     return gift_category