public void MakeTagsFromFilename() { file = File.Create(filePathForTag); file.Tag.Performers = new string[] { }; file.Tag.Title = String.Empty; file.Save(); var renamer = new FileRenamer(directory); renamer.MakeFileTags(new string[] { filePathForTag }); file = File.Create(filePathForTag); Assert.AreEqual("Led Zeppelin", file.Tag.FirstPerformer); Assert.AreEqual("Stairway to Heaven", file.Tag.Title); }