def METHOD_NAME(app):
    """Test that we should not prune if there are no plays before cutoff"""
    # setup
    with app.app_context():
        db = get_db()
    # run
    entities = {
        "tracks": [
            {"track_id": 3, "title": "track 3"},
        ],
        "plays": [
            # Current Plays
            {"item_id": 3, "created_at": CURRENT_TIMESTAMP},
        ],
    }
    populate_mock_db(db, entities)
    with db.scoped_session() as session:
        _prune_plays(session)
        # verify plays
        plays_result: List[Play] = session.query(Play).order_by(Play.id).all()
        assert len(plays_result) == 1