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// -*- coding: utf-8 -*-
//
// disktest - Storage tester
//
// Copyright 2020-2024 Michael Büsch <m@bues.ch>
//
// Licensed under the Apache License version 2.0
// or the MIT license, at your option.
// SPDX-License-Identifier: Apache-2.0 OR MIT
//
use rand::distributions::Alphanumeric;
use rand::{thread_rng, Rng};
/// Generate a new alphanumeric truly random seed.
///
/// length: The number of ASCII characters to return.
pub fn gen_seed_string(length: usize) -> String {
let rng = thread_rng();
rng.sample_iter(Alphanumeric)
.take(length)
.map(char::from)
.collect()
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_gen() {
// Check returned ASCII string length.
let seed = gen_seed_string(42);
assert_eq!(seed.len(), 42);
assert_eq!(seed.chars().count(), 42);
}
}
// vim: ts=4 sw=4 expandtab
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