def test_add_record(self):
database = BookDataBase(self.file)
book = Book("Somewhere", "Steven Law", 2000, "Fantasy", 0.2, 3)
book1 = Book("What", "Steven Maw", 2000, "Triller", 0.2, 20)
book2 = Book("Go", "Steven Law", 2000, "Thriller", 0.2, 20)
book3 = Book("Go", "Steven Law", 2000, "Thriller", 0.8, 12)
booklist = [book, book1, book2]
expected_records = [book.special_record() for book in booklist]
database.add_record(book)
database.add_record(book1)
database.add_record(book2)
with open(self.file, 'r') as file:
actual_records = file.readlines()
self.assertEqual(expected_records, actual_records)
database.add_record(book3)
book3.increase_number_of_copies(20)
booklist = [book, book1, book3]
new_expected_records = [book.special_record() for book in booklist]
with open(self.file, 'r') as file:
updated_records = file.readlines()
self.assertEqual(new_expected_records, updated_records)
os.remove(os.path.realpath(self.file))
def test_remove_record(self):
database = BookDataBase(self.file)
book = Book("What", "Steven Law", 2000, "Thriller", 0.2, 3)
book1 = Book("What", "Steven Maw", 2000, "Thriller", 0.2, 20)
book2 = Book("Go", "Steven Law", 2000, "Thriller", 0.2, 20)
booklist = [book, book1, book2]
recordlist = [book.special_record() for book in booklist]
with open(self.file, 'w') as file:
file.write("What+Steven Law+2000+Thriller+0.2+3\n")
file.write("What+Steven Maw+2000+Thriller+0.2+20\n")
file.write("Go+Steven Law+2000+Thriller+0.2+20\n")
database.remove_record(book2)
del recordlist[2]
with open(self.file, 'r') as file:
records_after_removal = file.readlines()
self.assertEqual(recordlist, records_after_removal)
database.remove_record(book)
del recordlist[0]
with open(self.file, 'r') as file:
records_after_removal = file.readlines()
self.assertEqual(recordlist, records_after_removal)
os.remove(os.path.realpath(self.file))
