using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NUnit.Framework;

namespace Developpez.Dotnet.Tests
{
    public class Assert2
    {
        public static void Throws<TException>(Action action)
            where TException : Exception
        {
            Throws<TException>(action, null);
        }

        public static void Throws<TException>(Action action, Func<TException, bool> exceptionPredicate)
            where TException : Exception
        {
            bool wasRaised = false;
            try
            {
                action();
            }
            catch (TException ex)
            {
                wasRaised = true;
                if (exceptionPredicate != null)
                    Assert.IsTrue(exceptionPredicate(ex));
            }
            Assert.IsTrue(wasRaised, "A '{0}' was expected but was not thrown.", typeof(TException).Name);
        }

        public static void AreSequenceEqual<T>(IEnumerable<T> expected, IEnumerable<T> actual)
        {
            Assert.IsTrue(expected.SequenceEqual(actual));
        }

        public static void AreSequenceEqual<T, TKey>(IEnumerable<T> expected, IEnumerable<T> actual, Func<T, TKey> keySelector)
        {
            Assert.IsTrue(expected.OrderBy(keySelector).SequenceEqual(actual.OrderBy(keySelector)));
        }
    }
}