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// run-pass
// ignore-emscripten no threads support
#![feature(box_syntax, set_stdio)]
use std::io::prelude::*;
use std::io;
use std::str;
use std::sync::{Arc, Mutex};
use std::thread;
struct Sink(Arc<Mutex<Vec<u8>>>);
impl Write for Sink {
fn write(&mut self, data: &[u8]) -> io::Result<usize> {
Write::write(&mut *self.0.lock().unwrap(), data)
}
fn flush(&mut self) -> io::Result<()> { Ok(()) }
}
fn main() {
let data = Arc::new(Mutex::new(Vec::new()));
let sink = Sink(data.clone());
let res = thread::Builder::new().spawn(move|| -> () {
io::set_panic(Some(Box::new(sink)));
panic!("Hello, world!")
}).unwrap().join();
assert!(res.is_err());
let output = data.lock().unwrap();
let output = str::from_utf8(&output).unwrap();
assert!(output.contains("Hello, world!"));
}
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