@Test
 public void MakeHolidaysLightsOff() {
   MyHolidayLights myHL = new MyHolidayLights(5);
   for (Light l : myHL.getRunningLights()) {
     Assert.assertFalse(l.isOn());
   }
 }
 @Test
 public void MakeHolidayLights() {
   MyHolidayLights myHL = new MyHolidayLights(5);
   int numLights = myHL.getRunningLights().size();
   Assert.assertTrue(numLights == 5);
 }
 @Test
 public void Make10Lights() {
   MyHolidayLights myHL = new MyHolidayLights(10);
   Assert.assertTrue(10 == myHL.getNumberOfLights());
 }