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pub use blobby;
use super::{ExtendableOutput, Reset, Update, XofReader};
use core::fmt::Debug;
#[macro_export]
#[cfg_attr(docsrs, doc(cfg(feature = "dev")))]
macro_rules! new_test {
($name:ident, $test_name:expr, $hasher:ty, $test_func:ident) => {
#[test]
fn $name() {
use digest::dev::blobby::Blob2Iterator;
let data = include_bytes!(concat!("data/", $test_name, ".blb"));
for (i, row) in Blob2Iterator::new(data).unwrap().enumerate() {
let [input, output] = row.unwrap();
if let Some(desc) = $test_func::<$hasher>(input, output) {
panic!(
"\n\
Failed test №{}: {}\n\
input:\t{:?}\n\
output:\t{:?}\n",
i, desc, input, output,
);
}
}
}
};
}
mod foo {
use super::super::Digest;
use core::fmt::Debug;
pub fn digest_test<D>(input: &[u8], output: &[u8]) -> Option<&'static str>
where
D: Digest + Debug + Clone,
{
let mut hasher = D::new();
hasher.update(input);
let mut hasher2 = hasher.clone();
if hasher.finalize().as_slice() != output {
return Some("whole message");
}
hasher2.reset();
hasher2.update(input);
if hasher2.finalize().as_slice() != output {
return Some("whole message after reset");
}
let mut hasher = D::new();
let len = input.len();
let mut left = len;
while left > 0 {
let take = (left + 1) / 2;
hasher.update(&input[len - left..take + len - left]);
left -= take;
}
if hasher.finalize().as_slice() != output {
return Some("message in pieces");
}
let mut hasher = D::new();
for chunk in input.chunks(1) {
hasher.update(chunk)
}
if hasher.finalize().as_slice() != output {
return Some("message byte-by-byte");
}
None
}
pub fn one_million_a<D>(expected: &[u8])
where
D: Digest + Debug + Clone,
{
let mut sh = D::new();
for _ in 0..50_000 {
sh.update(&[b'a'; 10]);
}
sh.update(&[b'a'; 500_000][..]);
let out = sh.finalize();
assert_eq!(out[..], expected[..]);
}
}
pub use self::foo::{digest_test, one_million_a};
pub fn xof_test<D>(input: &[u8], output: &[u8]) -> Option<&'static str>
where
D: Update + ExtendableOutput + Default + Debug + Reset + Clone,
{
let mut hasher = D::default();
let mut buf = [0u8; 1024];
hasher.update(input);
let mut hasher2 = hasher.clone();
{
let out = &mut buf[..output.len()];
hasher.finalize_xof().read(out);
if out != output {
return Some("whole message");
}
}
hasher2.reset();
hasher2.update(input);
{
let out = &mut buf[..output.len()];
hasher2.finalize_xof().read(out);
if out != output {
return Some("whole message after reset");
}
}
let mut hasher = D::default();
let len = input.len();
let mut left = len;
while left > 0 {
let take = (left + 1) / 2;
hasher.update(&input[len - left..take + len - left]);
left -= take;
}
{
let out = &mut buf[..output.len()];
hasher.finalize_xof().read(out);
if out != output {
return Some("message in pieces");
}
}
let mut hasher = D::default();
hasher.update(input);
let mut reader = hasher.finalize_xof();
let out = &mut buf[..output.len()];
for chunk in out.chunks_mut(1) {
reader.read(chunk);
}
if out != output {
return Some("message in pieces");
}
None
}
#[macro_export]
#[cfg_attr(docsrs, doc(cfg(feature = "dev")))]
macro_rules! bench {
($name:ident, $engine:path, $bs:expr) => {
#[bench]
fn $name(b: &mut Bencher) {
let mut d = <$engine>::default();
let data = [0; $bs];
b.iter(|| {
d.update(&data[..]);
});
b.bytes = $bs;
}
};
($engine:path) => {
extern crate test;
use digest::Digest;
use test::Bencher;
$crate::bench!(bench1_10, $engine, 10);
$crate::bench!(bench2_100, $engine, 100);
$crate::bench!(bench3_1000, $engine, 1000);
$crate::bench!(bench4_10000, $engine, 10000);
};
}