def test_Right(self):
tree = BinaryTree()
root = tree.add_root(BinaryTreeNode(5))
self.create_binary_search_tree(tree, [3, 1, 2, 7, 6])
# tree.Display()
assert tree.right(root) != None
assert tree.right(root).val == 7
def test_Right(self):
tree = BinaryTree()
root = tree.add_root(BinaryTreeNode(5))
self.create_binary_search_tree(tree, [3, 1, 2, 7, 6])
# tree.Display()
assert tree.right(root) != None
assert tree.right(root).val == 7