coreutils/tests/by-util/test_more.rs

use crate::common::util::*;

#[test]
fn test_more_no_arg() {
    // Reading from stdin is now supported, so this must succeed
    if atty::is(atty::Stream::Stdout) {
        new_ucmd!().succeeds();
    } else {}
}

#[test]
fn test_more_dir_arg() {
    // Run the test only if there's a valud terminal, else do nothing
    // Maybe we could capture the error, i.e. "Device not found" in that case
    // but I am leaving this for later
    if atty::is(atty::Stream::Stdout) {
        let result = new_ucmd!().arg(".").run();
        result.failure();
        const EXPECTED_ERROR_MESSAGE: &str =
            "more: '.' is a directory.\nTry 'more --help' for more information.";
        assert_eq!(result.stderr_str().trim(), EXPECTED_ERROR_MESSAGE);
    } else {}
}