src/test/run-pass/exit-flushes.rs

   1 // Copyright 2015 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
  11 use std::env;
  12 use std::process::{exit, Command};
  13
  14 fn main() {
  15     if env::args().len() > 1 {
  16         print!("hello!");
  17         exit(0);
  18     } else {
  19         let out = Command::new(env::args().next().unwrap()).arg("foo")
  20                           .output().unwrap();
  21         assert!(out.status.success());
  22         assert_eq!(String::from_utf8(out.stdout).unwrap(), "hello!");
  23         assert_eq!(String::from_utf8(out.stderr).unwrap(), "");
  24     }
  25 }