using System;
using System.IO;
using System.Text;
using NUnit.Framework;

namespace isn.tests
{
    public class Tests
    {
        private const int V = 0;
        private const int V1 = 1;

        public interface INeedEngine
        {
            object Parse(string code);

        }

        [SetUp]
        public void Setup()
        {
        }

        [Test]
        public void HAveADefaultDataProtector()
        {
            string pass = "a lame and big pass";
            isn.IDataProtector _protector = new isn.DefaultDataProtector();
            string protectedpass = _protector.Protect(pass);
            string unprotectedpass = _protector.UnProtect(protectedpass);
            Console.WriteLine(protectedpass);
            Assert.AreEqual(pass, unprotectedpass);
            Assert.Pass($"Good jod man! (decoding {protectedpass})");
        }
        
        // Not a [Test]
        public void TestParseCplus()
        {
            INeedEngine engine = new Engine();
            IRing c = new Ring();
            Assert.Equals((INeedEngine)engine.Parse("c+"), c.Add(Ring.One));
        }

        
        public void AssertIRingIsABody()
        {
            Ring c = new Ring();
            Ring one = Ring.One;
            Assert.True(c.Mult(one).Equals(c));
        }

        public void AssertIRingIsARing()
        {
            AssertIRingIsABody();
            Ring c = new Ring();
            IRing zero = Ring.Zero;
            Assert.True(c.Add(zero).Equals(c));
        }
        
        [Test]
        public void AssertReadInput()
        {
            var oldOut = Console.Out;
            StringBuilder censoredTxt = new StringBuilder();
            var newOut = new StringWriter(censoredTxt);
            Console.SetOut(newOut);
            Console.WriteLine("~~censored~~");
            Console.SetOut(oldOut);
            Console.Write("Hello ");
            Console.Write(censoredTxt);
        }

    }
}