def test33_load_from_xml_no_file_fail(self):
book_collection = BookCollection(**self.valid_bookcoll_kwargs)
self.assertFalse(book_collection.load_from_xml())
def test32_load_from_xml_success(self, data):
book_collection = BookCollection(**self.valid_bookcoll_kwargs)
book_collection[self.test_book1.isbn] = self.test_book1
self.assertTrue(book_collection.load_from_xml())