def testbstClone(self): bst = BinarySearchTree() l = [8, 4, 2, 1, 3, 6, 5, 7, 12, 10, 9, 11, 14, 13, 15] for d in l: bst.insert(d) clone = bst.bstClone() self.assertTrue(bst.sameTree(clone))