@Test
 public void testHasEveryLetterOfAlphabet_Burger() {
   assertFalse(StringyThingies.hasEveryLetterOfAlphabet("burger"));
 }
 @Test
 public void testHasEveryLetterOfAlphabet_Fox() {
   assertTrue(
       StringyThingies.hasEveryLetterOfAlphabet("the quick brown fox jumps over the lazy dog"));
 }