using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Net.Sockets;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Linq;
using System.Text;

namespace TestingLib
{
    public class Assert
    {
        public static ObservableCollection<UnitTestInfo> TestResults { get; set; }

        static Assert()
        {
            TestResults = new ObservableCollection<UnitTestInfo>();
        }
        public static void AreEqual(object first,
            object second,
            string message,
            [CallerMemberName] string methodName = null)
        {
            var testInfo = new UnitTestInfo();
            if (first.Equals(second))
            {
                testInfo.DidTestPass = true;
            }
            else
            {
                testInfo.DidTestPass = false;
                testInfo.TestFailureMessage = message;
            }
            testInfo.MethodName = methodName;
            TestResults.Add(testInfo);
        }

        public static void RunTests()
        {
            foreach (MethodInfo method in GetTestMethods())
            {
                var instanceOfTestClass = Activator.CreateInstance(method.DeclaringType);
                method.Invoke(instanceOfTestClass, null);
            }
        }
        private static List<MethodInfo> GetTestMethods()
        {
            var q = from t in Assembly.GetExecutingAssembly().GetTypes()
                from m in t.GetMethods()
                from att in m.GetCustomAttributes(true)
                where att.GetType() == typeof(CheckThisMethod)
                select m;

            return q.ToList();
        }
    }
}