use rustix::io;
use rustix::termios::{isatty, ttyname};
use std::fs::File;

#[test]
fn test_ttyname_ok() {
    let file = File::open("/dev/stdin").unwrap();
    if isatty(&file) {
        assert!(ttyname(&file, Vec::new())
            .unwrap()
            .into_string()
            .unwrap()
            .starts_with("/dev/"));
    }
}

#[test]
fn test_ttyname_not_tty() {
    let file = File::open("Cargo.toml").unwrap();
    assert_eq!(ttyname(&file, Vec::new()).unwrap_err(), io::Errno::NOTTY);

    let file = File::open("/dev/null").unwrap();
    assert_eq!(ttyname(&file, Vec::new()).unwrap_err(), io::Errno::NOTTY);
}