1 files changed, 88 insertions, 0 deletions
diff --git a/tests/ui/process/core-run-destroy.rs b/tests/ui/process/core-run-destroy.rs
new file mode 100644
index 00000000000..d0e97bf01f3
--- /dev/null
+++ b/tests/ui/process/core-run-destroy.rs
@@ -0,0 +1,88 @@
+// 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(());
+}