Simple retry class

RetryManager.cs

using System;
using System.Threading;
using NUnit.Framework;

namespace Tests
{
    class RetryManager
    {
        public void AttemptToRetryUntilTrue(Func<bool> condition, int timeoutMilliseconds = 5000, int delayMiliseconds = 100)
        {
            AttemptToRetryUntilTrue(condition, null, timeoutMilliseconds, delayMiliseconds);
        }

        public void AttemptToRetryUntilTrue(Func<bool> condition, Exception error = null, int timeoutMilliseconds = 5000, int delayMiliseconds = 100)
        {
            var startTime = DateTime.Now;
            var timeToQuit = startTime.AddMilliseconds(timeoutMilliseconds);
            var attempts = 0;
            while (DateTime.Now < timeToQuit)
            {
                attempts++;
                if (attempts > 1)
                    Console.WriteLine("Retrying...");
                try
                {
                    if (condition())
                        return;
                }
                catch (Exception ex)
                {
                    Console.WriteLine("Error: {0}", ex.Message);
                }
                Thread.Sleep(delayMiliseconds);
            }
            if (null == error)
                error = new Exception("Error: Timeout exceeded!");
            throw error;
        }
    }

    [TestFixture]
    public class RetryTests
    {
        [Test]
        public void VerifyRetries3Times()
        {
            var retryMan = new RetryManager();
            var count = 0;
            Func<bool> counter = () =>
                                     {
                                         count++;
                                         if (count < 3)
                                             return false;
                                         return true;
                                     };
            retryMan.AttemptToRetryUntilTrue(counter, 5000, 0);
            Assert.AreEqual(3, count);
        }

        [Test, ExpectedException("System.StackOverflowException")]
        public void VerifyRetriesFail()
        {
            var retryMan = new RetryManager();
            Func<bool> counter = () =>
            {
                throw new Exception();
            };
            retryMan.AttemptToRetryUntilTrue(counter, new StackOverflowException(), 100, 0);
        }
    }
}