Fix testing harness

test/conftest.py

@@ -2,38 +2,31 @@ import pytest
 from fastapi.testclient import TestClient
 from sqlmodel import Session, create_engine, SQLModel
 from sqlalchemy.orm import sessionmaker
+from sqlalchemy.pool import StaticPool
 
 from app.main import app
 from app.model.models import UserDB, Card, GroupDB, AccessAuthorizationDB, Timetable, AaGroupLink
 from app.services.database import get_session
 
 # Use in-memory SQLite for testing
-TEST_SQLALCHEMY_DATABASE_URL = "sqlite:///:memory:"
-
-engine = create_engine(TEST_SQLALCHEMY_DATABASE_URL, connect_args={"check_same_thread": False})
-TestingSessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+TEST_SQLALCHEMY_DATABASE_URL = "sqlite://"
 
+engine = create_engine(TEST_SQLALCHEMY_DATABASE_URL, connect_args={"check_same_thread": False}, poolclass=StaticPool)
 
 @pytest.fixture(scope="function")
 def db_session():
     """Create a fresh database session for each test."""
     SQLModel.metadata.create_all(engine)
-    session = TestingSessionLocal()
-    try:
+    with Session(engine) as session:
         yield session
-    finally:
-        session.close()
-        SQLModel.metadata.drop_all(engine)
+    SQLModel.metadata.drop_all(engine)
 
 
 @pytest.fixture(scope="function")
 def client(db_session):
     """Create a test client with a database session override."""
     def override_get_session():
-        try:
-            yield db_session
-        finally:
-            pass
+        yield db_session
 
     app.dependency_overrides[get_session] = override_get_session
     with TestClient(app) as test_client: