39 lines
1.2 KiB
Rust
39 lines
1.2 KiB
Rust
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// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use std::{env, process};
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fn child() {
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print!("[stdout 0]");
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print!("[stdout {}]", 1);
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println!("[stdout {}]", 2);
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println!();
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eprint!("[stderr 0]");
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eprint!("[stderr {}]", 1);
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eprintln!("[stderr {}]", 2);
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eprintln!();
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}
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fn parent() {
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let this = env::args().next().unwrap();
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let output = process::Command::new(this).arg("-").output().unwrap();
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assert!(output.status.success());
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let stdout = String::from_utf8(output.stdout).unwrap();
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let stderr = String::from_utf8(output.stderr).unwrap();
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assert_eq!(stdout, "[stdout 0][stdout 1][stdout 2]\n\n");
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assert_eq!(stderr, "[stderr 0][stderr 1][stderr 2]\n\n");
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}
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fn main() {
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if env::args().count() == 2 { child() } else { parent() }
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}
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