Add default database for testing

Author: tianjing-li

src/backend/tests/integration/conftest.py

@@ -18,7 +18,7 @@
 from backend.schemas.user import User
 from backend.tests.unit.factories import get_factory
 
-DATABASE_URL = os.environ["DATABASE_URL"]
+DATABASE_URL = os.environ.get("DATABASE_URL", "postgresql://postgres:postgres@localhost:5433")
 
 
 @pytest.fixture

src/backend/tests/unit/conftest.py

@@ -19,7 +19,7 @@
 from backend.main import app, create_app
 from backend.tests.unit.factories import get_factory
 
-DATABASE_URL = os.environ["DATABASE_URL"]
+DATABASE_URL = os.environ.get("DATABASE_URL", "postgresql://postgres:postgres@localhost:5433")
 
 
 @pytest.fixture