public void TestUnpackSongs()
 {
     // work with original Resources
     unpackedDirs = new List <string>();
     unpackedDirs = packerUnpacker.UnpackSongs(TestSettings.Instance.ResourcePaths, TestSettings.Instance.TmpDestDir);
     Assert.AreEqual(TestSettings.Instance.ResourcePaths.Count, unpackedDirs.Count);
 }