using System;
using System.Collections.Generic;
using System.Text;
using UnitTestSharp;
using Sunweaver.Commands.Abstracts;
using Sunweaver.Commands;
using Sunweaver.VM;

namespace Sunweaver.UnitTesting.Commands
{
    public class addTests : TestFixture
    {
        BasePair bp = new add();
        VirtualMachine VM;
        Codule codule;

        public override void TestSetup()
        {
            VM = new VirtualMachine();
            codule = new Codule();
            codule.BasePairs.Add(bp);
        }
        
        public void AddsCorrectly()
        {
            VM.Stack.Push(25);
            VM.Stack.Push(30);

            bp.Implementation(VM);

            CheckEqual(55, VM.Stack.Pop());
        }

        public void Compiled()
        {
            VM.Stack.Push(25);
            VM.Stack.Push(30);

            codule.Compile();
            codule.Execute(VM);

            CheckEqual(55, VM.Stack.Pop());
        }
        
        public void NameTest()
        {
            CheckEqual("add", bp.ToString());
        }

        public void MaxMax()
        {
            VM.Stack.Push(Sunweaver.VM.IntStack.Max);
            VM.Stack.Push(Sunweaver.VM.IntStack.Max);

            bp.Implementation(VM);

            CheckEqual(Sunweaver.VM.IntStack.Max - 1, VM.Stack.Pop());
        }

        public void MinMin()
        {
            VM.Stack.Push(Sunweaver.VM.IntStack.Min);
            VM.Stack.Push(Sunweaver.VM.IntStack.Min);

            bp.Implementation(VM);

            CheckEqual(Sunweaver.VM.IntStack.Min + 1, VM.Stack.Pop());
        }

        public void MaxMin()
        {
            VM.Stack.Push(Sunweaver.VM.IntStack.Max);
            VM.Stack.Push(Sunweaver.VM.IntStack.Min);

            bp.Implementation(VM);

            CheckEqual(0, VM.Stack.Pop());
        }

        public void MinMax()
        {
            VM.Stack.Push(Sunweaver.VM.IntStack.Min);
            VM.Stack.Push(Sunweaver.VM.IntStack.Max);

            bp.Implementation(VM);

            CheckEqual(0, VM.Stack.Pop());
        }
    }
}