def test_example_5(self):
expected_tree = Node('root', Node('left'), Node('right'))
expected_string = '(root(left()())(right()()))'
actual_string = serialize(expected_tree)
actual_tree = deserialize(expected_string)
self.assertEqual(expected_string, actual_string)
self.assertEqual(repr(expected_tree), repr(actual_tree))
def test_example_1(self):
expected_tree = None
expected_string = '()'
actual_string = serialize(expected_tree)
actual_tree = deserialize(expected_string)
self.assertEqual(expected_string, actual_string)
self.assertEqual(repr(expected_tree), repr(actual_tree))
def test_example_2(self):
expected_tree = Node('root')
expected_string = '(root()())'
actual_string = serialize(expected_tree)
actual_tree = deserialize(expected_string)
self.assertEqual(expected_string, actual_string)
self.assertEqual(repr(expected_tree), repr(actual_tree))