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#![allow(unused)]
use core::fmt::{self, Write};
use std::io::{self, BufReader, BufRead};
struct Manifest {
text: String,
buffer: String,
input: io::Lines<BufReader<std::fs::File>>,
line: usize,
}
impl Manifest {
fn new(input_file: &str) -> Self {
let text = std::fs::read_to_string("tests/manifesto.txt").expect("To read");
assert_eq!(text.len(), 5158);
let input = std::fs::File::open(input_file).expect("To open input");
let input = BufReader::new(input).lines();
Self {
text,
buffer: String::with_capacity(20),
input,
line: 1,
}
}
#[inline(always)]
fn get(&self, len: usize) -> &str {
&self.text[..len]
}
#[inline(always)]
fn format<T: fmt::LowerHex>(&mut self, data: T) -> &str {
self.buffer.clear();
let _ = write!(&mut self.buffer, "{:08x}", data);
self.buffer.as_str()
}
//returns (manifesto len, expected output)
fn next_input(&mut self) -> Option<(usize, String)> {
match self.input.next() {
Some(input) => {
let input = input.expect("Cannot read test input");
let mut input = input.split(',');
let len = input.next().unwrap();
let expected = match input.next() {
Some(expected) => expected.trim().to_owned(),
None => panic!("test file is missing <expected> at line={}", self.line),
};
if let Some(unexpected) = input.next() {
panic!("test file contains unexpected input='{}' at line={}", unexpected, self.line);
}
let len = match len.parse() {
Ok(len) => len,
Err(error) => panic!("test file contains invalid len='{}' at line = {}", len, self.line),
};
self.line += 1;
Some((len, expected))
},
None => None,
}
}
}
#[cfg(feature = "xxh3")]
#[test]
fn test_vectors_xxh3() {
use xxhash_rust::xxh3::{Xxh3, xxh3_64};
let mut hasher = Xxh3::new();
let mut fixture = Manifest::new("tests/xxh3_64_test_inputs.txt");
while let Some((len, expected)) = fixture.next_input() {
let manifest = fixture.get(len);
hasher.update(manifest.as_bytes());
let digest = hasher.digest();
assert_eq!(xxh3_64(manifest.as_bytes()), digest, "Streaming variant contradict oneshot function");
let digest = fixture.format(digest);
assert_eq!(digest, expected);
hasher.reset();
}
assert_eq!(fixture.line, 5158 + 1);
}
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