extern crate flate2;
use std::fs::File;
use std::io::prelude::*;
use std::io::{self, BufReader};
use std::path::Path;
use flate2::read::GzDecoder;
use flate2::read::MultiGzDecoder;
#[test]
fn test_extract_success() {
let content = extract_file(Path::new("tests/good-file.gz")).unwrap();
let mut expected = Vec::new();
File::open("tests/good-file.txt").unwrap().read_to_end(&mut expected).unwrap();
assert!(content == expected);
}
#[test]
fn test_extract_success_partial_multi() {
let content = extract_file(Path::new("tests/multi.gz")).unwrap();
let mut expected = String::new();
BufReader::new(File::open("tests/multi.txt").unwrap()).read_line(&mut expected).unwrap();
assert_eq!(content, expected.as_bytes());
}
#[test]
fn test_extract_failure() {
let result = extract_file(Path::new("tests/corrupt-file.gz"));
assert_eq!(result.err().unwrap().kind(), io::ErrorKind::InvalidInput);
}
#[test]
fn test_extract_success_multi() {
let content = extract_file_multi(Path::new("tests/multi.gz")).unwrap();
let mut expected = Vec::new();
File::open("tests/multi.txt").unwrap().read_to_end(&mut expected).unwrap();
assert_eq!(content, expected);
}
fn extract_file(path_compressed: &Path) -> io::Result<Vec<u8>>{
let mut v = Vec::new();
let f = try!(File::open(path_compressed));
try!(try!(GzDecoder::new(f)).read_to_end(&mut v));
Ok(v)
}
fn extract_file_multi(path_compressed: &Path) -> io::Result<Vec<u8>>{
let mut v = Vec::new();
let f = try!(File::open(path_compressed));
try!(try!(MultiGzDecoder::new(f)).read_to_end(&mut v));
Ok(v)
}