public static void Martin()
 {
     Assert.AreEqual("Martin does not play banjo", KataAreYouPlayingBanjo.AreYouPlayingBanjo("Martin"));
 }
 public static void Rikke()
 {
     Assert.AreEqual("Rikke plays banjo", KataAreYouPlayingBanjo.AreYouPlayingBanjo("Rikke"));
 }