sdl2 0.33.0

extern crate sdl2;

#[test]
fn display_name_no_segfault() {
    let sdl_context = sdl2::init().unwrap();
    let video_subsystem = sdl_context.video();
    if let Ok(video_subsystem) = video_subsystem {
        // hopefully no one has a 100 screen to see this test pass
        let r = video_subsystem.display_name(99);
        assert!(r.is_err());
    } // in Err(), environment has no video device (for instance travis)
    // so ignore it
}