Tests & Benches for hash

pull/10/head
Dennis Schwerdel 5 years ago
parent 1674f19309
commit abfa14effc
  1. 71
      src/util/hash.rs

@ -111,7 +111,7 @@ impl HashMethod {
match *self {
HashMethod::Blake2 => {
let hash = blake2b(16, &[], data);
let hash = unsafe { &*mem::transmute::<_, *mut (u64, u64)>(hash.as_bytes().as_ptr()) };
let hash = unsafe { &*mem::transmute::<_, *const (u64, u64)>(hash.as_bytes().as_ptr()) };
Hash { high: u64::from_be(hash.0), low: u64::from_be(hash.1) }
},
HashMethod::Murmur3 => {
@ -139,3 +139,72 @@ impl HashMethod {
}
}
mod tests {
#[allow(unused_imports)]
use super::*;
#[test]
fn test_parse() {
assert_eq!(HashMethod::from("blake2"), Ok(HashMethod::Blake2));
assert_eq!(HashMethod::from("murmur3"), Ok(HashMethod::Murmur3));
assert!(HashMethod::from("foo").is_err());
}
#[test]
fn test_to_str() {
assert_eq!(HashMethod::Blake2.name(), "blake2");
assert_eq!(HashMethod::Murmur3.name(), "murmur3");
}
#[test]
fn test_blake2() {
assert_eq!(HashMethod::Blake2.hash(b"abc"), Hash{high: 0xcf4ab791c62b8d2b, low: 0x2109c90275287816});
}
#[test]
fn test_murmur3() {
assert_eq!(HashMethod::Murmur3.hash(b"123"), Hash{high: 10978418110857903978, low: 4791445053355511657});
}
}
#[cfg(feature = "bench")]
mod benches {
#[allow(unused_imports)]
use super::*;
use test::Bencher;
#[allow(dead_code, needless_range_loop)]
fn test_data(n: usize) -> Vec<u8> {
let mut input = vec![0; n];
for i in 0..input.len() {
input[i] = (i * i * i) as u8;
}
input
}
#[bench]
fn bench_blake2(b: &mut Bencher) {
let data = test_data(16*1024);
b.bytes = data.len() as u64;
b.iter(|| HashMethod::Blake2.hash(&data));
}
#[bench]
fn bench_murmur3(b: &mut Bencher) {
let data = test_data(16*1024);
b.bytes = data.len() as u64;
b.iter(|| HashMethod::Murmur3.hash(&data));
}
}

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