def test_empty_queue(self):
queue = StackQueue()
self.assertTrue(queue.is_empty())
with self.assertRaises(StackQueue.Empty):
queue.dequeue()
with self.assertRaises(StackQueue.Empty):
queue.peek()
def test_empty_queue(self):
queue = StackQueue()
self.assertTrue(queue.is_empty())
with self.assertRaises(StackQueue.Empty):
queue.dequeue()
with self.assertRaises(StackQueue.Empty):
queue.peek()
def test_enqueue_dequeue(self):
queue = StackQueue()
queue.enqueue(1)
queue.enqueue(2)
self.assertEqual(queue.dequeue(), 1)
self.assertEqual(queue.dequeue(), 2)
with self.assertRaises(StackQueue.Empty):
queue.dequeue()
def test_enqueue_dequeue(self):
queue = StackQueue()
queue.enqueue(1)
queue.enqueue(2)
self.assertEqual(queue.dequeue(), 1)
self.assertEqual(queue.dequeue(), 2)
with self.assertRaises(StackQueue.Empty):
queue.dequeue()
