diff --git a/test_main.py b/test_main.py
index 4d41a22..92e0e92 100644
--- a/test_main.py
+++ b/test_main.py
@@ -1,7 +1,8 @@
 from fastapi.testclient import TestClient
+from datetime import date
 
 from .main import app
-from classes.boardgame import BoardGame
+from classes.boardgame import BoardGame, CollectionBoardGame
 
 client = TestClient(app)
 
@@ -23,7 +24,10 @@ def test_retrieve_collection():
     response = client.get("/collection")
     assert response.status_code == 200
 
-    returned_boardgame = BoardGame(**response.json()[0])
+    returned_boardgame = CollectionBoardGame(**response.json()[0])
 
     assert type(returned_boardgame.id) == int
-    assert type(returned_boardgame.name) == str
\ No newline at end of file
+    assert type(returned_boardgame.name) == str
+    assert type(returned_boardgame.price_paid) == float
+    assert type(returned_boardgame.acquisition_date) == date
+    assert type(returned_boardgame.acquired_from) == str
\ No newline at end of file