extern crate rustijvm;

use std::fs::File;
use std::sync::{Arc, Mutex};
use std::io::{Cursor, Seek, SeekFrom, Read};

fn run_bfi(file: &str) -> String {
    let file = File::open(file).expect("Missing bf file");
    let rc = rustijvm::stubs::output_stub();
    let mut machine = rustijvm::Machine::new_from_file("files/bonus/bfi.ijvm").unwrap();
    machine.set_output(rc.clone());
    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
}

#[test]
fn bonusheap_hello_world() {
    let output = run_bfi("files/bonus/brainfuck/hello_world.bf");
    assert_eq!(output, "Hello World!\n");
}

#[test]
fn bonusheap_dank() {
    let output = run_bfi("files/bonus/brainfuck/dank.bf");
    assert_eq!(output, "MoarTests");
}