class TestLibraryManager(unittest.TestCase):
def setUp(self):
self.library1 = LibraryManager('The_library')
self.book1 = eBook('B20V2', 'Me', 'Elton John', 2017, 4, 'OverDrive Read', 'biography', False)
self.book2 = Textbook('A111', 'why do we need to sleep?', 'John Simpliciano', 2017, 9, 'hardcover case wrap',
'health', False)
self.book3 = Textbook('A110', 'why do we sleep?', 'John Simpliciano', 2015, 3, 'hardcover case wrap',
'health', True)
def test_constructor(self):
""" valid constructor """
self.assertIsInstance(self.library1, LibraryManager)
def test_get_name(self):
""" test if function returns correct name"""
self.assertEqual(self.library1.get_name, 'The_library')
def test_add_book(self):
""" test if function adds to the inventory """
self.library1.add_book(self.book1)
def test_add_book_fail(self):
""" test if function raises error when book in library """
with self.assertRaises(LookupError):
self.library1.add_book(self.book1)
self.library1.add_book(self.book1)
def test_remove_book(self):
""" test if function removes from inventory """
self.library1.add_book(self.book1)
self.library1.remove_book('B20V2')
def test_remove_book_fail(self):
""" test if function raises error when book with no id exists """
with self.assertRaises(KeyError):
self.library1.remove_book('B20V2')
def test_get_book_by_id(self):
""" test if function returns correct book by id"""
self.library1.add_book(self.book1)
self.assertIsNone(self.library1.get_book_by_id('B202'))
self.library1.add_book(self.book2)
self.assertEqual(self.library1.get_book_by_id('A111'), self.book2)
def test_exist_in_library(self):
""" Test if book exist in library by id """
self.library1.add_book(self.book1)
self.assertIs(self.library1.exists_in_library('B20V2'), True)
self.assertIs(self.library1.exists_in_library('B2V2'), False)
def test_get_all_books(self):
""" test if function returns all books in inventory """
self.assertEqual(self.library1.get_all_books(), [])
self.library1.add_book(self.book1)
self.assertEqual(type(self.library1.get_all_books()), dict)
def test_get_book_stats(self):
""" test if function returns inventory stats """
self.library1.add_book(self.book1)
self.library1.add_book(self.book3)
self.assertIsInstance(self.library1.get_book_stat(), LibraryStats)
def test_show_book_not_borrowed(self):
""" Test if function displays description"""
self.library1.add_book(self.book1)
self.library1.add_book(self.book2)
self.library1.show_book_not_borrowed("textbook")
def test_show_book_not_borrowed_fail(self):
""" Test if function raises an error """
with self.assertRaises(ValueError):
self.library1.show_book_not_borrowed("asd")
def test_show_available_book_category(self):
""" test if function display correct book categories"""
self.library1.add_book(self.book1)
self.library1.add_book(self.book2)
self.library1.show_available_book_category('textbook')
self.library1.show_available_book_category('ebook')
class TestLibraryManager(TestCase):
def setUp(self):
self.library1 = LibraryManager('The_library')
self.mock_save_func = mock.Mock()
self.library1._write_to_file = self.mock_save_func
self.book1 = eBook('B20V2', 'Me', 'Elton John', 2017, 4,
'OverDrive Read', 'biography', False)
self.book2 = Textbook('A111', 'why do we need to sleep?',
'John Simpliciano', 2017, 9,
'hardcover case wrap', 'health', False)
self.book3 = Textbook('A110', 'why do we sleep?', 'John Simpliciano',
2015, 3, 'hardcover case wrap', 'health', True)
def test_constructor(self):
""" valid constructor """
self.assertIsInstance(self.library1, LibraryManager)
def test_read_from_file(self):
""" tests to see if read_from_file method is called properly """
self.librarian = LibraryManager('Maryam')
self.assertTrue(os.path.exists('library_manager.json'))
self.librarian1 = LibraryManager('John')
os.remove('library_manager.json')
self.assertFalse(os.path.exists('library_manager.json'))
def test_get_name(self):
""" test if function returns correct name"""
self.assertEqual(self.library1.get_name, 'The_library')
def test_add_book(self):
""" test if function adds to the inventory """
self.library1.add_book(self.book1)
self.assertTrue(self.mock_save_func.called)
def test_add_book_fail(self):
""" test if function raises error when book in library """
with self.assertRaises(LookupError):
self.library1.add_book(self.book1)
self.library1.add_book(self.book1)
self.assertTrue(self.mock_save_func.called)
self.assertEqual(self.mock_save_func.call_count, 1)
def test_remove_book(self):
""" test if function removes from inventory """
self.library1.add_book(self.book1)
self.library1.remove_book('B20V2')
self.assertTrue(self.mock_save_func.called)
self.assertEqual(self.mock_save_func.call_count, 1)
def test_remove_book_fail(self):
""" test if function raises error when book with no id exists """
with self.assertRaises(KeyError):
self.library1.remove_book('B20V2')
def test_update_book(self):
""" test the success samples of update book performance """
self.library1.add_book(self.book1)
self.library1.update_book('B20V2', 'Fast Read Ebooks', 'fantasy')
self.library1.add_book(self.book3)
self.library1.update_book('A110', 'language', 'paperback')
self.assertTrue(self.mock_save_func.called)
self.assertEqual(self.mock_save_func.call_count, 4)
def test_update_book_fail(self):
""" test the failure sample of update book performance """
with self.assertRaises(ValueError):
self.library1.update_book('A110', 'paperback', 'language')
self.assertTrue(self.mock_save_func.called)
self.assertEqual(self.mock_save_func.call_count, 1)
def test_to_dict(self):
""" tests the performance of converting objects to json dictionary """
self.library1.add_book(self.book1)
self.library1.add_book(self.book2)
self.library1.add_book(self.book3)
self.assertTrue(self.library1.to_dict())
def test_get_book_by_id(self):
""" test if function returns correct book by id"""
self.library1.add_book(self.book1)
self.assertIsNone(self.library1.get_book_by_id('B202'))
self.library1.add_book(self.book2)
self.assertEqual(self.library1.get_book_by_id('A111'), self.book2)
def test_exist_in_library(self):
""" Test if book exist in library by id """
self.library1.add_book(self.book1)
self.assertIs(self.library1.exists_in_library('B20V2'), True)
self.assertIs(self.library1.exists_in_library('B2V2'), False)
def test_get_all_books(self):
""" test if function returns all books in inventory """
self.assertEqual(self.library1.get_all_books(), [])
self.library1.add_book(self.book1)
self.assertEqual(type(self.library1.get_all_books()), dict)
def test_get_book_stats(self):
""" test if function returns inventory stats """
self.library1.add_book(self.book1)
self.library1.add_book(self.book3)
self.assertIsInstance(self.library1.get_book_stat(), LibraryStats)
def test_show_book_not_borrowed(self):
""" Test if function displays description"""
self.library1.add_book(self.book1)
self.library1.add_book(self.book2)
self.library1.show_book_not_borrowed("textbook")
def test_show_book_not_borrowed_fail(self):
""" Test if function raises an error """
with self.assertRaises(ValueError):
self.library1.show_book_not_borrowed("asd")
def test_show_available_book_category(self):
""" test if function display correct book categories"""
self.library1.add_book(self.book1)
self.library1.add_book(self.book2)
self.library1.show_available_book_category('textbook')
self.library1.show_available_book_category('ebook')