src/test/run-pass/weird-exit-code.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 // On Windows the GetExitCodeProcess API is used to get the exit code of a
  12 // process, but it's easy to mistake a process exiting with the code 259 as
  13 // "still running" because this is the value of the STILL_ACTIVE constant. Make
  14 // sure we handle this case in the standard library and correctly report the
  15 // status.
  16 //
  17 // Note that this is disabled on unix as processes exiting with 259 will have
  18 // their exit status truncated to 3 (only the lower 8 bits are used).
  19
  20 use std::process::{self, Command};
  21 use std::env;
  22
  23 fn main() {
  24     if !cfg!(windows) {
  25         return
  26     }
  27
  28     if env::args().len() == 1 {
  29         let status = Command::new(env::current_exe().unwrap())
  30                              .arg("foo")
  31                              .status()
  32                              .unwrap();
  33         assert_eq!(status.code(), Some(259));
  34     } else {
  35         process::exit(259);
  36     }
  37 }