def test_node_delete_parent(self): n = Node() parent = Node() n.parent = parent self.assertEqual(n.parent, parent) n.parent = None self.assertEqual(n.parent, None)
def test_node_modify_parent(self): n = Node() parent = Node(data=1) n.parent = parent self.assertEqual(n.parent, parent) new_parent = Node(data=2) n.parent = new_parent self.assertEqual(n.parent, new_parent)
def test_node_add_parent(self): n = Node() parent = Node() n.parent = parent self.assertEqual(n.parent, parent)