def test_append(self):
model = PyListModel([])
model.append(1)
self.assertSequenceEqual(model, [1])
model.append(2)
self.assertSequenceEqual(model, [1, 2])
self.assertEqual(len(model), len(model._other_data))
def test_wrap(self):
model = PyListModel()
s = [1, 2]
model.wrap(s)
self.assertSequenceEqual(model, [1, 2])
model.append(3)
self.assertEqual(s, [1, 2, 3])
self.assertEqual(len(model._other_data), 3)
s.append(5)
self.assertRaises(RuntimeError, model._is_index_valid, 0)