Catel.Test.Caching.CacheStorageFacts.TheThreadSafeFunctionality.RunMultipleThreadsWithRandomAccessCalls C# (CSharp) Method

            private void RunMultipleThreadsWithRandomAccessCalls(Func<ICacheStorage<Guid, int>, Guid, int> retrievalFunc)
            {
                var cacheStorage = new CacheStorage<Guid, int>(() => ExpirationPolicy.Duration(TimeSpan.FromMilliseconds(250)));

                var threads = new List<Thread>();
                for (var i = 0; i < 50; i++)
                {
                    var thread = new Thread(() =>
                    {
                        var random = new Random();

                        for (var j = 0; j < 1000; j++)
                        {
                            var randomGuid = _randomGuids[random.Next(0, 9)];

                            retrievalFunc(cacheStorage, randomGuid);

                            ThreadHelper.Sleep(10);
                        }
                    });

                    threads.Add(thread);
                    thread.Start();
                }

                while (true)
                {
                    var anyThreadAlive = false;

                    foreach (var thread in threads)
                    {
                        if (thread.IsAlive)
                        {
                            anyThreadAlive = true;
                            break;
                        }
                    }

                    if (!anyThreadAlive)
                    {
                        break;
                    }

                    ThreadHelper.Sleep(500);
                }
            }
        }