use crate::generators::aes_ctr::{AesCtrGenerator, AesKey, ChildrenIterator};
use crate::generators::implem::soft::block_cipher::SoftwareBlockCipher;
use crate::generators::{ByteCount, BytesPerChild, ChildrenCount, ForkError, RandomGenerator};
use crate::seeders::Seed;
pub struct SoftwareRandomGenerator(pub(super) AesCtrGenerator<SoftwareBlockCipher>);
pub struct SoftwareChildrenIterator(ChildrenIterator<SoftwareBlockCipher>);
impl Iterator for SoftwareChildrenIterator {
type Item = SoftwareRandomGenerator;
fn next(&mut self) -> Option<Self::Item> {
self.0.next().map(SoftwareRandomGenerator)
}
}
impl RandomGenerator for SoftwareRandomGenerator {
type ChildrenIter = SoftwareChildrenIterator;
fn new(seed: Seed) -> Self {
SoftwareRandomGenerator(AesCtrGenerator::new(AesKey(seed.0), None, None))
}
fn remaining_bytes(&self) -> ByteCount {
self.0.remaining_bytes()
}
fn try_fork(
&mut self,
n_children: ChildrenCount,
n_bytes: BytesPerChild,
) -> Result<Self::ChildrenIter, ForkError> {
self.0
.try_fork(n_children, n_bytes)
.map(SoftwareChildrenIterator)
}
}
impl Iterator for SoftwareRandomGenerator {
type Item = u8;
fn next(&mut self) -> Option<Self::Item> {
self.0.next()
}
}
#[cfg(test)]
mod test {
use super::*;
use crate::generators::aes_ctr::aes_ctr_generic_test;
use crate::generators::generator_generic_test;
#[test]
fn prop_fork_first_state_table_index() {
aes_ctr_generic_test::prop_fork_first_state_table_index::<SoftwareBlockCipher>();
}
#[test]
fn prop_fork_last_bound_table_index() {
aes_ctr_generic_test::prop_fork_last_bound_table_index::<SoftwareBlockCipher>();
}
#[test]
fn prop_fork_parent_bound_table_index() {
aes_ctr_generic_test::prop_fork_parent_bound_table_index::<SoftwareBlockCipher>();
}
#[test]
fn prop_fork_parent_state_table_index() {
aes_ctr_generic_test::prop_fork_parent_state_table_index::<SoftwareBlockCipher>();
}
#[test]
fn prop_fork() {
aes_ctr_generic_test::prop_fork::<SoftwareBlockCipher>();
}
#[test]
fn prop_fork_children_remaining_bytes() {
aes_ctr_generic_test::prop_fork_children_remaining_bytes::<SoftwareBlockCipher>();
}
#[test]
fn prop_fork_parent_remaining_bytes() {
aes_ctr_generic_test::prop_fork_parent_remaining_bytes::<SoftwareBlockCipher>();
}
#[test]
fn test_roughly_uniform() {
generator_generic_test::test_roughly_uniform::<SoftwareRandomGenerator>();
}
#[test]
fn test_fork() {
generator_generic_test::test_fork_children::<SoftwareRandomGenerator>();
}
#[test]
fn test_generator_determinism() {
generator_generic_test::test_generator_determinism::<SoftwareRandomGenerator>();
}
#[test]
#[should_panic(expected = "expected test panic")]
fn test_bounded_panic() {
generator_generic_test::test_bounded_none_should_panic::<SoftwareRandomGenerator>();
}
}