src/test/run-pass-fulldeps/issue-15149.rs

   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.
   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 // no-prefer-dynamic
  12 // ignore-android
  13
  14 #![feature(rustc_private)]
  15
  16 extern crate rustc_back;
  17
  18 use std::env;
  19 use std::fs;
  20 use std::process;
  21 use std::str;
  22 use rustc_back::tempdir::TempDir;
  23
  24 fn main() {
  25     // If we're the child, make sure we were invoked correctly
  26     let args: Vec<String> = env::args().collect();
  27     if args.len() > 1 && args[1] == "child" {
  28         // FIXME: This should check the whole `args[0]` instead of just
  29         // checking that it ends_with the executable name. This
  30         // is needed because of Windows, which has a different behavior.
  31         // See #15149 for more info.
  32         return assert!(args[0].ends_with(&format!("mytest{}",
  33                                                   env::consts::EXE_SUFFIX)));
  34     }
  35
  36     test();
  37 }
  38
  39 fn test() {
  40     // If we're the parent, copy our own binary to a new directory.
  41     let my_path = env::current_exe().unwrap();
  42     let my_dir  = my_path.parent().unwrap();
  43
  44     let child_dir = TempDir::new_in(&my_dir, "issue-15140-child").unwrap();
  45     let child_dir = child_dir.path();
  46
  47     let child_path = child_dir.join(&format!("mytest{}",
  48                                              env::consts::EXE_SUFFIX));
  49     fs::copy(&my_path, &child_path).unwrap();
  50
  51     // Append the new directory to our own PATH.
  52     let path = {
  53         let mut paths: Vec<_> = env::split_paths(&env::var_os("PATH").unwrap()).collect();
  54         paths.push(child_dir.to_path_buf());
  55         env::join_paths(paths.iter()).unwrap()
  56     };
  57
  58     let child_output = process::Command::new("mytest").env("PATH", &path)
  59                                                       .arg("child")
  60                                                       .output().unwrap();
  61
  62     assert!(child_output.status.success(),
  63             format!("child assertion failed\n child stdout:\n {}\n child stderr:\n {}",
  64                     str::from_utf8(&child_output.stdout).unwrap(),
  65                     str::from_utf8(&child_output.stderr).unwrap()));
  66
  67     fs::remove_dir_all(&child_dir).unwrap();
  68
  69 }