rust/src/test/run-pass/logging-separate-lines.rs

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// Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// ignore-android
// ignore-win32
#![feature(phase)]
#[phase(syntax, link)]
extern crate log;
use std::io::{Process, ProcessConfig};
use std::os;
use std::str;
fn main() {
let args = os::args();
let args = args.as_slice();
if args.len() > 1 && args[1].as_slice() == "child" {
debug!("foo");
debug!("bar");
return
}
let env = [("RUST_LOG".to_owned(), "debug".to_owned())];
let config = ProcessConfig {
program: args[0].as_slice(),
args: &["child".to_owned()],
env: Some(env.as_slice()),
..ProcessConfig::new()
};
let p = Process::configure(config).unwrap().wait_with_output().unwrap();
assert!(p.status.success());
let mut lines = str::from_utf8(p.error.as_slice()).unwrap().lines();
assert!(lines.next().unwrap().contains("foo"));
assert!(lines.next().unwrap().contains("bar"));
}