Tests.ChangeTagsCommandTest.ChangeTags_TagDoesNotExist_ArgumentException C# (CSharp) Method

        public void ChangeTags_TagDoesNotExist_ArgumentException()
        {
            // Init
            var mp3Files = new List<IMp3File>
            {
                new FakeMp3File(new Mp3Tags{Artist = "artist", Title = "title"}, SourceFolder + "newartist-newtitle.mp3"),
            };

            // Act
            var commandPool = mp3Files.Select(mp3File => new ChangeTagsCommand(mp3File, "{sometag}-{title}")).Cast<Command>().ToList();
            commandPool.ForEach(command => command.Execute());
        }