test/test_poll.rs


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use nix::poll::*;
use nix::unistd::{write, pipe};

#[test]
fn test_poll() {
    let (r, w) = pipe().unwrap();
    let mut fds = [PollFd::new(r, POLLIN)];

    let nfds = poll(&mut fds, 100).unwrap();
    assert_eq!(nfds, 0);
    assert!(!fds[0].revents().unwrap().contains(POLLIN));

    write(w, b".").unwrap();

    let nfds = poll(&mut fds, 100).unwrap();
    assert_eq!(nfds, 1);
    assert!(fds[0].revents().unwrap().contains(POLLIN));
}