public void AddFolderToChild()
        {
            PackFileService packFileService = new PackFileService(new PackFileDataBase());
            var             loadedPackFile  = packFileService.Load(@"Data\CaPackFile_01.pack");

            packFileService.AddFolderContent(loadedPackFile, @"warmachines\materials", @"Data\FolderData");

            var newFileCount = loadedPackFile.FileList.Count;

            Assert.AreEqual(9, newFileCount);

            var file = packFileService.FindFile(@"warmachines\materials\subFolder1\Subfolder_1_file1.txt");

            Assert.NotNull(file);
        }