def test_num_discs(self):
num_discs = 2
album = Album(num_discs=num_discs)
self.assertEqual(album.num_discs, num_discs)
with self.assertRaises(AttributeError):
album.num_discs = None
def test_num_discs(self):
num_discs = 2
album = Album(num_discs=num_discs)
assert album.num_discs == num_discs
with self.assertRaises(AttributeError):
album.num_discs = None