xref: /cloud-hypervisor/src/test_util.rs (revision 53e9c94e685bedbd1337c145bf4821385d7fe38c)

// Copyright © 2025 Cyberus Technology GmbH
//
// SPDX-License-Identifier: Apache-2.0
//

//! Test utilities.

use std::cmp::Ordering;

use clap::Arg;

/// Ensures that all [`Arg`]s are sorted alphabetically.
pub fn assert_args_sorted<'a, F: Fn() -> R, R: Iterator<Item = &'a Arg>>(get_base_iter: F) {
    let iter = get_base_iter().zip(get_base_iter().skip(1));
    for (arg, next) in iter {
        assert_ne!(
            arg.get_id().cmp(next.get_id()),
            Ordering::Greater,
            "args not alphabetically sorted: arg={}, next={}",
            arg.get_id(),
            next.get_id()
        );
    }
}