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// run-pass
#![allow(unused_variables)]
// no-prefer-dynamic
// ignore-cross-compile
use std::env;
use std::ffi::OsStr;
use std::fs;
use std::path::PathBuf;
use std::process;
use std::str;
fn main() {
// If we're the child, make sure we were invoked correctly
let args: Vec<String> = env::args().collect();
if args.len() > 1 && args[1] == "child" {
// FIXME: This should check the whole `args[0]` instead of just
// checking that it ends_with the executable name. This
// is needed because of Windows, which has a different behavior.
// See #15149 for more info.
let my_path = env::current_exe().unwrap();
return assert_eq!(my_path.file_stem(), Some(OsStr::new("mytest")));
}
test();
}
fn test() {
// If we're the parent, copy our own binary to a new directory.
let my_path = env::current_exe().unwrap();
let my_dir = my_path.parent().unwrap();
let child_dir = PathBuf::from(env::var_os("RUST_TEST_TMPDIR").unwrap());
let child_dir = child_dir.join("issue-15140-child");
fs::create_dir_all(&child_dir).unwrap();
let child_path = child_dir.join(&format!("mytest{}", env::consts::EXE_SUFFIX));
fs::copy(&my_path, &child_path).unwrap();
// Append the new directory to our own PATH.
let path = {
let mut paths: Vec<_> = env::split_paths(&env::var_os("PATH").unwrap()).collect();
paths.push(child_dir.to_path_buf());
env::join_paths(paths).unwrap()
};
let child_output =
process::Command::new("mytest").env("PATH", &path).arg("child").output().unwrap();
assert!(
child_output.status.success(),
"child assertion failed\n child stdout:\n {}\n child stderr:\n {}",
str::from_utf8(&child_output.stdout).unwrap(),
str::from_utf8(&child_output.stderr).unwrap()
);
}
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