    #[test]
    fn encode_and_extract() {
        use super::*;
        use std::fs::File;
        use std::io::prelude::*;
        use file_diff::diff;

        let mut encoder = Encoder::new();
        encoder.add_file("tempeh.jpg", Box::new(File::open("test/image/tempeh.jpg").unwrap()));
        encoder.add_file("imperial.ogg", Box::new(File::open("test/music/imperial.ogg").unwrap()));
        encoder.write(File::create("test/output/encode_and_read.pakt").unwrap());
