#[macro_use]
extern crate run_cmd;
extern crate env_logger;
extern crate libc;

use libc::c_int;
use run_cmd::ShellResult;
use std::thread;
use std::time::Duration;

fn setup() {
    env_logger::init().unwrap_or_default();
}

#[test]
fn test_command_run() {
    setup();
    cmd!("test 0 = 0").run().unwrap();
}

#[test]
fn test_subshell_kill_child() {
    setup();
    let job = run_cmd::spawn(|| -> ShellResult { cmd!("sleep 3").run() });
    thread::sleep(Duration::from_millis(100));
    // Stop outputting process group.
    assert!(cmd!("pgrep sleep").run().is_ok());
    job.signal(libc::SIGTERM);
    assert!(job.join().unwrap().is_err());
    // assert!(cmd!("pgrep sleep").run().is_err());
}

#[test]
fn test_kill_all_after_wait() {
    setup();
    let job = run_cmd::spawn(|| -> ShellResult {
        cmd!("sleep 0.05").run()?;
        cmd!("sleep 2").run()
    });
    thread::sleep(Duration::from_millis(100));
    job.signal(libc::SIGTERM);
    assert!(job.join().unwrap().is_err());
}

#[test]
fn test_kill_thread_job() {
    setup();
    let job = run_cmd::spawn(|| -> ShellResult { cmd!("sleep 5").run() });
    thread::sleep(Duration::from_millis(100));
    job.signal(libc::SIGTERM);
    assert!(job.join().unwrap().is_err());
}

#[test]
fn test_signal_before_run() {
    setup();
    let job = run_cmd::spawn(|| -> ShellResult {
        thread::sleep(Duration::from_millis(100));
        cmd!("sleep 1").run()
    });
    job.signal(libc::SIGTERM);
    assert!(job.join().unwrap().is_err());
}

#[test]
fn test_trap_signal_and_wait_children() {
    setup();
    let result = unsafe {
        let result = libc::fork();
        assert_ne!(result, -1);
        result
    };
    if result == 0 {
        run_cmd::trap_signal_and_wait_children().unwrap();
        unsafe {
            assert_eq!(libc::kill(libc::getpid(), libc::SIGTERM), 0);
        }
        thread::sleep(Duration::from_secs(10));
    } else {
        unsafe {
            let mut status: c_int = 0;
            libc::waitpid(result, &mut status as *mut c_int, 0);
            // assert!(libc::WIFEXITED(status));
            assert_eq!(libc::WEXITSTATUS(status), 0);
            // assert!(cmd!("pgrep sleep").run().is_err());
        }
    }
}