def test_creation(self):
sample = [1, 2, 3]
d = types.MutableList(sample)
self.assertEqual(sample, d)
def test_changed_on_append(self, mock_mutable_list_changed):
sample = [1, 2, 3]
lst = types.MutableList(sample)
lst.append(4)
self.assertEqual([1, 2, 3, 4], lst)
self.assertEqual(1, mock_mutable_list_changed.call_count)
def test_changed_on_delitem(self, mock_mutable_list_changed):
sample = [1, 2, 3]
lst = types.MutableList(sample)
del lst[2]
self.assertEqual([1, 2], lst)
self.assertEqual(1, mock_mutable_list_changed.call_count)
def test_coerce_mutable_list(self):
sample = [1, 2, 3]
sample_md = types.MutableList(sample)
md = types.MutableList.coerce("test", sample_md)
self.assertEqual(sample, md)
self.assertIs(sample_md, md)