Update tests

benches/brainfuck.rs

@@ -3,27 +3,17 @@ extern crate rustijvm;
 extern crate test;
 
 use std::fs::File;
-use std::rc::Rc;
-use std::sync::Mutex;
-use std::io::{Cursor, Seek, SeekFrom, Read};
+use std::sync::{Arc, Mutex};
+use std::io::Cursor;
 use test::Bencher;
 
-fn run_bfi(file: &str) -> String {
+fn run_bfi(file: &str) {
     let file = File::open(file).expect("Missing bf file");
-    let rc = Rc::new(Mutex::new(Cursor::new(Vec::new())));
+    let rc = Arc::new(Mutex::new(Cursor::new(Vec::new())));
     let mut machine = rustijvm::Machine::new_from_file("files/bonus/bfi.ijvm").unwrap();
-    machine.set_output(rc.clone());
+    machine.set_output(rc);
     machine.set_input(Box::new(file));
-
     machine.run().unwrap();
-
-    let mut out = rc.lock().unwrap();
-    let mut string = String::new();
-
-    out.seek(SeekFrom::Start(0)).unwrap();
-    out.read_to_string(&mut string).unwrap();
-
-    string
 }
 
 #[bench]