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// This file is part of the Noddybox.Emulation C# suite.
//
// Noddybox.Emulation is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Noddybox.Emulation is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Noddybox.Emulation.  If not, see <http://www.gnu.org/licenses/>.
//
// Copyright (c) 2012 Ian Cowburn
//
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace Noddybox.Emulation.EightBit.Z80.Test
{
    /// <summary>
    /// This program drives the tests for the Z80 emulation.  The tests are based on the test
    /// suite from the FUSE emulator; http://fuse-emulator.sourceforge.net/
    /// </summary>
    class Program
    {
        static Queue<string> GetBlock(StreamReader str)
        {
            Queue<string> q = new Queue<string>();
            bool process = false;

            while(!str.EndOfStream)
            {
                string s = str.ReadLine();

                if (process)
                {
                    if (s.Trim().Length == 0)
                    {
                        return q;
                    }
                    
                    q.Enqueue(s);
                }
                else
                {
                    if (s.Trim().Length > 0)
                    {
                        process = true;
                        q.Enqueue(s);
                    }
                }
            }

            return q;
        }

        static void Main(string[] args)
        {
            try
            {
                StreamReader test = new StreamReader("tests.in");
                StreamReader expected = new StreamReader("tests.expected");

                while(!test.EndOfStream)
                {
                    Queue<string> t = GetBlock(test);
                    Queue<string> e = GetBlock(expected);

                    if (t.Count > 0)
                    {
                        if (t.Peek() != e.Peek())
                        {
                            throw new Exception(String.Format("Test name {0}, expected name {1}", t.Peek(), e.Peek()));
                        }

                        TestMachine m = new TestMachine();
                        e.Dequeue();

                        if (!m.Run(t.Dequeue(), t, e))
                        {
                            Console.ReadKey(true);
                        }
                    }
                }

                test.Close();
                expected.Close();
            }
            catch (Exception e)
            {
                while (e != null)
                {
                    Console.WriteLine("**** {0}: {1}", e.GetType(), e.Message);
                    e = e.InnerException;
                }
            }
        }
    }
}