public void Constructor_Test()
        {
            BooksAssignService service = new BooksAssignService(_mockBooksRepository.Object, _mockAssignDetailsRepository.Object);

            Assert.IsNotNull(service);
        }
 public void TestInitialize()
 {
     _mockBooksRepository         = new Mock <IBooksRepository <Book> >();
     _mockAssignDetailsRepository = new Mock <IAssignDetailsRepository <AssignDetails> >();
     _serive = new BooksAssignService(_mockBooksRepository.Object, _mockAssignDetailsRepository.Object);
 }