// Test files are taken from the artificial corpus found in
// the Canterbury corpus. https://corpus.canterbury.ac.nz/

use std::fs;
use std::path::Path;

fn test_roundtrip(file_name: &str, compressed_len: usize) {
    let data = fs::read(Path::new("tests").join(file_name)).unwrap();

    let mut output = vec![0; lzo1x_1::worst_compress(data.len())];
    let compressed_data = lzo1x_1::compress_to_slice(&data, &mut output);

    assert_eq!(compressed_data.len(), compressed_len);

    let mut output = vec![0; data.len()];
    let decompressed_data = lzo1x_1::decompress_to_slice(compressed_data, &mut output).unwrap();

    assert_eq!(decompressed_data, data);
}

#[test]
fn roundtrip_a() {
    test_roundtrip("a.txt", 5);
}

#[test]
fn roundtrip_aaa() {
    test_roundtrip("aaa.txt", 471);
}

#[test]
fn roundtrip_alphabet() {
    test_roundtrip("alphabet.txt", 544);
}

#[test]
fn roundtrip_random() {
    test_roundtrip("random.txt", 100397);
}