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.
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.
11 // ignore-android (FIXME #11419)
12 // exec-env:RUST_LOG=info
14 #![allow(unknown_features)]
15 #![feature(box_syntax)]
20 use log::{set_logger, Logger, LogRecord};
21 use std::sync::mpsc::channel;
23 use std::io::{ChanReader, ChanWriter};
24 use std::thread::Thread;
26 struct MyWriter(ChanWriter);
28 impl Logger for MyWriter {
29 fn log(&mut self, record: &LogRecord) {
30 let MyWriter(ref mut inner) = *self;
31 write!(inner, "{}", record.args);
36 let (tx, rx) = channel();
37 let (mut r, w) = (ChanReader::new(rx), ChanWriter::new(tx));
38 let _t = Thread::spawn(move|| {
39 set_logger(box MyWriter(w) as Box<Logger+Send>);
43 let s = r.read_to_string().unwrap();
44 assert!(s.as_slice().contains("info"));
45 assert!(!s.as_slice().contains("debug"));