class TestListBooksByFirstLetterInteractor(InteractorTestBase):
def setUp(self):
self.__persistence = Mock(Persistence)
self.__target = ListBooksByFirstLetterInteractor(self.__persistence)
def test_is_instance_of_interactor(self):
self.assertIsInstance(self.__target, Interactor)
def test_execute_calls_persistence(self):
first_letter = "T"
self.__target.execute(first_letter)
self.assert_called(self.__persistence.list_books_by_first_letter)
def setUp(self):
self.__persistence = Mock(Persistence)
self.__target = ListBooksByFirstLetterInteractor(self.__persistence)