@Test
 public void testIsNameUniqueSpecialCharacters() {
   groceryCartService.addToShoppingList("Ham", 32);
   assertTrue("isNameUnique should not honor wildcards", groceryCartService.isNameUnique(".*"));
 }
 @Test
 public void testIsNameUniqueWildCard() {
   groceryCartService.addToShoppingList("Ham", 32);
   assertTrue(
       "isNameUnique should not honor db wildcards", groceryCartService.isNameUnique("%a%"));
 }
 @Test
 public void testIsNameUniqueFalsePositive() {
   groceryCartService.addToShoppingList("Ham", 32);
   assertTrue(
       "False positive when checking for unique name", groceryCartService.isNameUnique("Eggs"));
 }
 @Test
 public void testIsNameUniqueDuplicate() {
   groceryCartService.addToShoppingList("Ham", 32);
   assertFalse(
       "Failed to identify existing name as not unique", groceryCartService.isNameUnique("Ham"));
 }
 @Test
 public void testIsNameUniqueEmpty() {
   groceryCartService.addToShoppingList("Ham", 32);
   assertTrue("isNameUnique should not match empty searches", groceryCartService.isNameUnique(""));
 }
 @Test
 public void testIsNameUniqueNull() {
   groceryCartService.addToShoppingList("Ham", 32);
   assertTrue("isNameUnique should not match null", groceryCartService.isNameUnique(null));
 }