rust/tests/ui/env-args-reverse-iterator.rs
Alex Crichton cf6d6050f7 Update test directives for wasm32-wasip1
* 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`.
2024-03-11 09:36:35 -07:00

38 lines
868 B
Rust

//@ run-pass
//@ ignore-wasm32 no processes
//@ ignore-sgx no processes
use std::env::args;
use std::process::Command;
fn assert_reverse_iterator_for_program_arguments(program_name: &str) {
let args: Vec<_> = args().rev().collect();
assert!(args.len() == 4);
assert_eq!(args[0], "c");
assert_eq!(args[1], "b");
assert_eq!(args[2], "a");
assert_eq!(args[3], program_name);
println!("passed");
}
fn main() {
let mut args = args();
let me = args.next().unwrap();
if let Some(_) = args.next() {
assert_reverse_iterator_for_program_arguments(&me);
return
}
let output = Command::new(&me)
.arg("a")
.arg("b")
.arg("c")
.output()
.unwrap();
assert!(output.status.success());
assert!(output.stderr.is_empty());
assert_eq!(output.stdout, b"passed\n");
}