tari_test_utils 5.3.0

// Copyright 2019 The Tari Project
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use std::iter;

use rand::{Rng, distributions::Alphanumeric, thread_rng};

/// Generate a random alphanumeric string of the given size using the default `ThreadRng`.
pub fn string(len: usize) -> String {
    let mut rng = thread_rng();
    iter::repeat(())
        .map(|_| rng.sample(Alphanumeric) as char)
        .take(len)
        .collect()
}

/// Generate a random alphanumeric string of the given size using the default `ThreadRng`.
pub fn prefixed_string(prefix: &str, len: usize) -> String {
    let mut rng = thread_rng();
    let rand_str = iter::repeat(())
        .map(|_| rng.sample(Alphanumeric) as char)
        .take(len)
        .collect::<String>();
    format!("{prefix}{rand_str}")
}

#[cfg(test)]
mod test {
    #[test]
    fn string() {
        let sample = super::string(8);
        assert_ne!(sample, super::string(8));
        assert_eq!(sample.len(), 8);
    }
}