use std::convert::TryFrom;
#[test]
fn test_signalfd() {
use nix::sys::signalfd::SignalFd;
use nix::sys::signal::{self, raise, Signal, SigSet};
let _m = crate::SIGNAL_MTX.lock().expect("Mutex got poisoned by another test");
let mut mask = SigSet::empty();
mask.add(signal::SIGUSR1);
mask.thread_block().unwrap();
let mut fd = SignalFd::new(&mask).unwrap();
raise(signal::SIGUSR1).expect("Error: raise(SIGUSR1) failed");
let res = fd.read_signal().unwrap().unwrap();
let signo = Signal::try_from(res.ssi_signo as i32).unwrap();
assert_eq!(signo, signal::SIGUSR1);
}