def test_empty(): tree = BinaryTree() assert tree.empty() == True assert tree.find(0) == False
def test_find(): tree = BinaryTree() tree.insert(0) assert tree.empty() == False assert tree.find(0) == True
def test_find_after_deleted(): tree = BinaryTree() tree.insert(0) tree.delete(0) assert tree.empty() == True assert tree.find(0) == False