def METHOD_NAME(setup, test_name, flag_name, expected):
    """Ensure that is_on is TRUE when reading flags from local JSON file."""
    app.config['AUTH_LD_SDK_KEY'] = 'https://no.flag/avail'
    with app.app_context():
        flags = Flags()
        flags.init_app(app)
        assert flags.is_on(flag_name)