exec-target

the simple invoke command for test

This invokes external a command and manipulates standard in out. You can use std::process::Command more easily.

Features

minimum support rustc 1.58.0 (02072b482 2022-01-11)

Reproducible Tests and Environment

To ensure reproducible test results across different environments, exec-target is opinionated about environment variables. By default, it clears the environment and only inherits a minimal set of essential variables:

TERM
TZ
PATH
LD_LIBRARY_PATH

Additionally, it explicitly sets LANG=C to avoid localized output from commands (e.g., error messages in different languages), which would otherwise make string assertions fragile.

Example

use exec_target::exec_target_with_env_in;

let command = "target/debug/exe-stab-grep";
let args = &["--color=always", "-e", "c"];
let envs = vec![("GREP_COLORS", "ms=01;32")];
let inp = b"abcdefg\n" as &[u8];

let oup = exec_target_with_env_in(command, args, envs, inp).unwrap();

assert_eq!(oup.stderr, "");
assert_eq!(oup.stdout, "ab\u{1b}[01;32m\u{1b}[Kc\u{1b}[m\u{1b}[Kdefg\n");
assert_eq!(oup.status.success(), true);

Changelogs

This crate's changelog here.

License

This project is licensed under either of

Apache License, Version 2.0, (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)