def test_next(self):
queue = Queue()
queue_node = queue.QueueNode(1)
next_queue_node = queue.QueueNode(2)
self.assertEqual(queue_node.get_next(), None)
queue_node.set_next(next_queue_node)
self.assertEqual(queue_node.get_next(), next_queue_node)
self.assertEqual(next_queue_node.get_next(), None)
def test_init(self):
queue = Queue()
queue_node = queue.QueueNode(3)
self.assertEqual(queue_node._QueueNode__content, 3)
def test_content(self):
queue = Queue()
queue_node = queue.QueueNode(1)
self.assertEqual(queue_node.get_content(), 1)
