def test_trial(self): """Try trial 50 times to be sure.""" for trial in range(50): self.bst = CountingBinaryTree() num = 100 values = list(range(num)) random.shuffle(values) for _ in values: self.bst.add(_) for n in inorder(self.bst.root): self.assertEqual(n.numLeft, n.countLeftChildren()) removal = list(values) random.shuffle(removal) for t in removal: self.bst.remove(t) self.assertFalse(t in self.bst) if self.bst.root: for n in inorder(self.bst.root): self.assertEqual(n.numLeft, n.countLeftChildren())
def setUp(self): self.bst = CountingBinaryTree()