/** Test of checkOut method, of class Circulation. */
 @Test
 public void testCheckOut() {
   System.out.println("checkOut");
   String bTitle = "";
   String pName = "";
   Circulation instance = new Circulation();
   instance.checkOut(bTitle, pName);
   // TODO review the generated test code and remove the default call to fail.
   fail("The test case is a prototype.");
 }