public void Fails_Negative()
 {
     BerlinClockTimeConverter.SecondsRows(-1);
 }
 public void Fails_MoreThan59()
 {
     BerlinClockTimeConverter.SecondsRows(60);
 }
 public void YellowLampBlinksEveryOtherSecond(string[] expected, int seconds)
 {
     Assert.AreEqual(expected, BerlinClockTimeConverter.SecondsRows(seconds), $"converting {seconds} seconds");
 }