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// run-pass
// no-prefer-dynamic
// The test copies itself into a subdirectory with a non-ASCII name and then
// runs it as a child process within the subdirectory. The parent process
// also adds an environment variable and an argument, both containing
// non-ASCII characters. The child process ensures all the strings are
// intact.
// ignore-emscripten no processes
// ignore-sgx no processes
// ignore-fuchsia Filesystem manipulation privileged
use std::io::prelude::*;
use std::io;
use std::fs;
use std::process::Command;
use std::env;
use std::path::Path;
fn main() {
let my_args = env::args().collect::<Vec<_>>();
let my_cwd = env::current_dir().unwrap();
let my_env = env::vars().collect::<Vec<_>>();
let my_path = env::current_exe().unwrap();
let my_dir = my_path.parent().unwrap();
let my_ext = my_path.extension().and_then(|s| s.to_str()).unwrap_or("");
// some non-ASCII characters
let blah = "\u{3c0}\u{42f}\u{97f3}\u{e6}\u{221e}";
let child_name = "child";
let child_dir = format!("process-spawn-with-unicode-params-{}", blah);
// parameters sent to child / expected to be received from parent
let arg = blah;
let cwd = my_dir.join(&child_dir);
let env = ("RUST_TEST_PROC_SPAWN_UNICODE".to_string(), blah.to_string());
// am I the parent or the child?
if my_args.len() == 1 { // parent
let child_filestem = Path::new(child_name);
let child_filename = child_filestem.with_extension(my_ext);
let child_path = cwd.join(&child_filename);
// make a separate directory for the child
let _ = fs::create_dir(&cwd);
fs::copy(&my_path, &child_path).unwrap();
// run child
let p = Command::new(&child_path)
.arg(arg)
.current_dir(&cwd)
.env(&env.0, &env.1)
.spawn().unwrap().wait_with_output().unwrap();
// display the output
io::stdout().write_all(&p.stdout).unwrap();
io::stderr().write_all(&p.stderr).unwrap();
// make sure the child succeeded
assert!(p.status.success());
} else { // child
// check working directory (don't try to compare with `cwd` here!)
assert!(my_cwd.ends_with(&child_dir));
// check arguments
assert_eq!(&*my_args[1], arg);
// check environment variable
assert!(my_env.contains(&env));
};
}
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