fix tests

tests/unit/test_anime_service.py

@@ -70,11 +70,13 @@ class TestAnimeServiceInitialization:
         bad_series_app = MagicMock()
         bad_series_app.directory_to_search = str(tmp_path)
 
-        # Make event subscription fail
-        def raise_error(*args):
-            raise Exception("Initialization failed")
-
-        bad_series_app.__setattr__ = raise_error
+        # Make event subscription fail by raising on property access
+        type(bad_series_app).download_status = property(
+            lambda self: None,
+            lambda self, value: (_ for _ in ()).throw(
+                Exception("Initialization failed")
+            )
+        )
         
         with pytest.raises(
             AnimeServiceError, match="Initialization failed"