// run-pass #![allow(unused_must_use)] #![allow(stable_features)] #![allow(deprecated)] #![allow(unused_imports)] // compile-flags:--test // ignore-emscripten no processes // ignore-sgx no processes // ignore-vxworks no 'cat' and 'sleep' // ignore-fuchsia no 'cat' // N.B., these tests kill child processes. Valgrind sees these children as leaking // memory, which makes for some *confusing* logs. That's why these are here // instead of in std. #![feature(rustc_private, duration)] extern crate libc; use std::process::{self, Command, Child, Output, Stdio}; use std::str; use std::sync::mpsc::channel; use std::thread; use std::time::Duration; macro_rules! t { ($e:expr) => (match $e { Ok(e) => e, Err(e) => panic!("error: {}", e) }) } #[test] fn test_destroy_once() { let mut p = sleeper(); t!(p.kill()); } #[cfg(unix)] pub fn sleeper() -> Child { t!(Command::new("sleep").arg("1000").spawn()) } #[cfg(windows)] pub fn sleeper() -> Child { // There's a `timeout` command on windows, but it doesn't like having // its output piped, so instead just ping ourselves a few times with // gaps in between so we're sure this process is alive for awhile t!(Command::new("ping").arg("127.0.0.1").arg("-n").arg("1000").spawn()) } #[test] fn test_destroy_twice() { let mut p = sleeper(); t!(p.kill()); // this shouldn't crash... let _ = p.kill(); // ...and nor should this (and nor should the destructor) } #[test] fn test_destroy_actually_kills() { let cmd = if cfg!(windows) { "cmd" } else if cfg!(target_os = "android") { "/system/bin/cat" } else { "cat" }; // this process will stay alive indefinitely trying to read from stdin let mut p = t!(Command::new(cmd) .stdin(Stdio::piped()) .spawn()); t!(p.kill()); // Don't let this test time out, this should be quick let (tx, rx) = channel(); thread::spawn(move|| { thread::sleep_ms(1000); if rx.try_recv().is_err() { process::exit(1); } }); let code = t!(p.wait()).code(); if cfg!(windows) { assert!(code.is_some()); } else { assert!(code.is_none()); } tx.send(()); }