def test_read_file_year_reverse(self):
book_reader = BookReader(file_name='pipe', order_by_year=True, reverse=True)
book_reader._read_file()
sorted_list = book_reader._get_sorted_lines_list()
self.assertEqual(len(sorted_list), 4)
for index, last_name in enumerate(['Beck', 'Beck', 'Fowler', 'Brooks']):
self.assertEqual(last_name, book_reader.data_hash[sorted_list[index]].last_name)
