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1 | // Copyright 2014 The Rust Project Developers. See the COPYRIGHT |
2 | // file at the top-level directory of this distribution and at | |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
b7449926 | 11 | // run-pass |
2c00a5a8 | 12 | // ignore-cloudabi no processes |
abe05a73 | 13 | // ignore-emscripten no processes |
c34b1796 | 14 | |
85aaf69f | 15 | use std::env; |
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16 | use std::io::prelude::*; |
17 | use std::io; | |
18 | use std::process::{Command, Stdio}; | |
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19 | |
20 | fn main() { | |
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21 | let args: Vec<String> = env::args().collect(); |
22 | if args.len() > 1 && args[1] == "child" { | |
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23 | return child() |
24 | } | |
25 | ||
26 | test(); | |
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27 | } |
28 | ||
29 | fn child() { | |
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30 | writeln!(&mut io::stdout(), "foo").unwrap(); |
31 | writeln!(&mut io::stderr(), "bar").unwrap(); | |
32 | let mut stdin = io::stdin(); | |
33 | let mut s = String::new(); | |
34 | stdin.lock().read_line(&mut s).unwrap(); | |
35 | assert_eq!(s.len(), 0); | |
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36 | } |
37 | ||
38 | fn test() { | |
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39 | let args: Vec<String> = env::args().collect(); |
40 | let mut p = Command::new(&args[0]).arg("child") | |
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41 | .stdin(Stdio::piped()) |
42 | .stdout(Stdio::piped()) | |
43 | .stderr(Stdio::piped()) | |
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44 | .spawn().unwrap(); |
45 | assert!(p.wait().unwrap().success()); | |
46 | } |