src/test/run-pass/command-exec.rs

   1 // Copyright 2016 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 // ignore-windows - this is a unix-specific test
  12 // ignore-pretty
  13
  14 #![feature(process_exec)]
  15
  16 use std::env;
  17 use std::os::unix::process::CommandExt;
  18 use std::process::Command;
  19
  20 fn main() {
  21     let mut args = env::args();
  22     let me = args.next().unwrap();
  23
  24     if let Some(arg) = args.next() {
  25         match &arg[..] {
  26             "test1" => println!("passed"),
  27
  28             "exec-test1" => {
  29                 let err = Command::new(&me).arg("test1").exec();
  30                 panic!("failed to spawn: {}", err);
  31             }
  32
  33             "exec-test2" => {
  34                 Command::new("/path/to/nowhere").exec();
  35                 println!("passed");
  36             }
  37
  38             "exec-test3" => {
  39                 Command::new(&me).arg("bad\0").exec();
  40                 println!("passed");
  41             }
  42
  43             "exec-test4" => {
  44                 Command::new(&me).current_dir("/path/to/nowhere").exec();
  45                 println!("passed");
  46             }
  47
  48             _ => panic!("unknown argument: {}", arg),
  49         }
  50         return
  51     }
  52
  53     let output = Command::new(&me).arg("exec-test1").output().unwrap();
  54     assert!(output.status.success());
  55     assert!(output.stderr.is_empty());
  56     assert_eq!(output.stdout, b"passed\n");
  57
  58     let output = Command::new(&me).arg("exec-test2").output().unwrap();
  59     assert!(output.status.success());
  60     assert!(output.stderr.is_empty());
  61     assert_eq!(output.stdout, b"passed\n");
  62
  63     let output = Command::new(&me).arg("exec-test3").output().unwrap();
  64     assert!(output.status.success());
  65     assert!(output.stderr.is_empty());
  66     assert_eq!(output.stdout, b"passed\n");
  67
  68     let output = Command::new(&me).arg("exec-test4").output().unwrap();
  69     assert!(output.status.success());
  70     assert!(output.stderr.is_empty());
  71     assert_eq!(output.stdout, b"passed\n");
  72 }