// run-pass // ignore-emscripten // ignore-wasm32 // ignore-sgx no processes use std::env; use std::process::Command; fn main() { if env::args().nth(1).map(|s| s == "print").unwrap_or(false) { for (k, v) in env::vars() { println!("{}={}", k, v); } return } let me = env::current_exe().unwrap(); let result = Command::new(me).arg("print").output().unwrap(); let output = String::from_utf8(result.stdout).unwrap(); for (k, v) in env::vars() { assert!(output.contains(&format!("{}={}", k, v)), "output doesn't contain `{}={}`\n{}", k, v, output); } }