mirror of https://github.com/rust-lang/rust
85 lines
2.2 KiB
Rust
85 lines
2.2 KiB
Rust
//@ run-pass
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#![allow(unused_must_use)]
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#![allow(stable_features)]
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#![allow(deprecated)]
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#![allow(unused_imports)]
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//@ compile-flags:--test
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//@ ignore-wasm32 no processes
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//@ ignore-sgx no processes
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//@ ignore-vxworks no 'cat' and 'sleep'
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//@ ignore-fuchsia no 'cat'
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// N.B., these tests kill child processes. Valgrind sees these children as leaking
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// memory, which makes for some *confusing* logs. That's why these are here
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// instead of in std.
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use std::process::{self, Command, Child, Output, Stdio};
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use std::str;
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use std::sync::mpsc::channel;
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use std::thread;
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use std::time::Duration;
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macro_rules! t {
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($e:expr) => (match $e { Ok(e) => e, Err(e) => panic!("error: {}", e) })
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}
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#[test]
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fn test_destroy_once() {
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let mut p = sleeper();
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t!(p.kill());
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}
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#[cfg(unix)]
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pub fn sleeper() -> Child {
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t!(Command::new("sleep").arg("1000").spawn())
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}
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#[cfg(windows)]
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pub fn sleeper() -> Child {
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// There's a `timeout` command on windows, but it doesn't like having
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// its output piped, so instead just ping ourselves a few times with
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// gaps in between so we're sure this process is alive for awhile
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t!(Command::new("ping").arg("127.0.0.1").arg("-n").arg("1000").spawn())
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}
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#[test]
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fn test_destroy_twice() {
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let mut p = sleeper();
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t!(p.kill()); // this shouldn't crash...
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let _ = p.kill(); // ...and nor should this (and nor should the destructor)
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}
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#[test]
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fn test_destroy_actually_kills() {
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let cmd = if cfg!(windows) {
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"cmd"
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} else if cfg!(target_os = "android") {
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"/system/bin/cat"
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} else {
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"cat"
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};
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// this process will stay alive indefinitely trying to read from stdin
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let mut p = t!(Command::new(cmd)
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.stdin(Stdio::piped())
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.spawn());
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t!(p.kill());
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// Don't let this test time out, this should be quick
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let (tx, rx) = channel();
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thread::spawn(move|| {
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thread::sleep_ms(1000);
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if rx.try_recv().is_err() {
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process::exit(1);
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}
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});
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let code = t!(p.wait()).code();
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if cfg!(windows) {
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assert!(code.is_some());
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} else {
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assert!(code.is_none());
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}
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tx.send(());
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}
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