watchexec/cli/tests/help.rs

use std::process::Command;

use assert_cmd::prelude::*;
use insta::assert_snapshot;

#[test]
fn help() {
    let output = Command::cargo_bin("watchexec")
        .unwrap()
        .arg("--help")
        .output()
        .unwrap();

    assert!(output.status.success(), "--help returns 0");
    assert_eq!(output.stderr, Vec::<u8>::new(), "--help stderr is empty");
    assert_snapshot!(
        if cfg!(windows) {
            "help_windows"
        } else {
            "help_unix"
        },
        String::from_utf8(output.stdout).unwrap()
    );
}