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cf6d6050f7
* The WASI targets deal with the `main` symbol a bit differently than native so some `codegen` and `assembly` tests have been ignored. * All `ignore-emscripten` directives have been updated to `ignore-wasm32` to be more clear that all wasm targets are ignored and it's not just Emscripten. * Most `ignore-wasm32-bare` directives are now gone. * Some ignore directives for wasm were switched to `needs-unwind` instead. * Many `ignore-wasm32*` directives are removed as the tests work with WASI as opposed to `wasm32-unknown-unknown`.
40 lines
1002 B
Rust
40 lines
1002 B
Rust
//@ run-pass
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#![allow(unused_mut)]
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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::prelude::*;
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use std::io;
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use std::process::{Command, Stdio};
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use std::str;
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fn main() {
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let args: Vec<String> = env::args().collect();
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if args.len() > 1 && args[1] == "child" {
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child();
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} else {
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parent();
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}
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}
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fn parent() {
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let args: Vec<String> = env::args().collect();
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let mut p = Command::new(&args[0]).arg("child")
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.stdout(Stdio::piped())
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.stdin(Stdio::piped())
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.spawn().unwrap();
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p.stdin.as_mut().unwrap().write_all(b"test1\ntest2\ntest3").unwrap();
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let out = p.wait_with_output().unwrap();
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assert!(out.status.success());
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let s = str::from_utf8(&out.stdout).unwrap();
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assert_eq!(s, "test1\ntest2\ntest3\n");
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}
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fn child() {
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let mut stdin = io::stdin();
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for line in stdin.lock().lines() {
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println!("{}", line.unwrap());
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}
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}
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