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use rand;

use rand::{Rng,OsRng,thread_rng};

pub fn standart(size: usize) -> Vec<u8> {
    let mut result: Vec<u8> = vec![0; size];

    thread_rng().fill_bytes(&mut result);

    result
}

#[cfg(test)]
mod test_standart {
    use super::*;

    #[test]
    fn generates_random_vectors() {
        let bytes = standart(5);

        assert_eq!(bytes.len(), 5);
    }
}

pub fn os(size: usize) -> Vec<u8> {
    let mut rng = OsRng::new().unwrap();
    let mut result = vec![0u8; size];

    rng.fill_bytes(&mut result);

    result
}

mod test_secure {
    use super::*;

    #[test]
    fn generates_random_vectors() {
        let bytes = os(5);

        assert_eq!(bytes.len(), 5);
    }
}