mirror of https://github.com/rust-lang/rust
36 lines
997 B
Rust
36 lines
997 B
Rust
//@ run-pass
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//@ ignore-wasm32 no processes
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//@ ignore-sgx no processes
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use std::env;
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use std::io;
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use std::io::Write;
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use std::process::{Command, Stdio};
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fn main() {
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let mut args = env::args();
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let me = args.next().unwrap();
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let arg = args.next();
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match arg.as_ref().map(|s| &s[..]) {
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None => {
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let mut s = Command::new(&me)
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.arg("a1")
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.stdin(Stdio::piped())
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.spawn()
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.unwrap();
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s.stdin.take().unwrap().write_all(b"foo\n").unwrap();
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let s = s.wait().unwrap();
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assert!(s.success());
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}
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Some("a1") => {
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let s = Command::new(&me).arg("a2").status().unwrap();
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assert!(s.success());
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}
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Some(..) => {
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let mut s = String::new();
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io::stdin().read_line(&mut s).unwrap();
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assert_eq!(s, "foo\n");
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}
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}
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}
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