public void GetFileStatusTest1()
        {
            var stopwatch = new Stopwatch();

            string workingFolder = @"D:\Users\Public\My Projects Tryout\orchard-1.0.20\src";
            GitFileStatusTracker target = new GitFileStatusTracker(workingFolder);

            var list1 = new List<GitFileStatus>();
            var list2= new List<GitFileStatus>();

            var list = target.GetChangedFiles();
            stopwatch.Start();
            foreach (var f in list)
            {
                list1.Add(target.GetFileStatusNoCache(f.FileName));
            }
            stopwatch.Stop();
            Debug.WriteLine(list.Count() + ":" + stopwatch.ElapsedMilliseconds);

            stopwatch.Reset();
            stopwatch.Start();
            foreach (var f in list)
            {
                list2.Add(target.GetFileStatusNoCacheOld(f.FileName));
            }
            stopwatch.Stop();
            Debug.WriteLine(list.Count() + ":" + stopwatch.ElapsedMilliseconds);

            for(int i=0; i<list1.Count; i++)
            {
                Assert.AreEqual(list1[i], list2[i]);
            }
        }