def test_dequeue(self):
queue = Queue()
queue.enqueue(1)
queue.enqueue(2)
queue.enqueue(3)
self.assertEqual(queue.dequeue(), 1)
self.assertEqual(queue.dequeue(), 2)
self.assertEqual(queue.dequeue(), 3)
def test_queue_002(self):
q = Queue()
self.assertTrue(q.is_empty())
q.enqueue('A')
self.assertFalse(q.is_empty())
self.assertFalse(q.is_empty())
self.assertEqual(q.dequeue(), 'A')
self.assertTrue(q.is_empty())
def test_queue_003(self):
q = Queue()
self.assertTrue(q.is_empty())
with self.assertRaises(QueueIsEmptyException):
self.assertEqual(q.dequeue(), 'A')
from stack import Queue
# s = Stack() #
# s.push(32) # 32
# s.push(7) # 7 32
# d = s.pop() # 32 and d holds 7
# s.push(d) # 7 32
# s.pop() # 32
q = Queue() # []
q.enqueue(32) # [32]
d = q.dequeue() # []
print(d) # 32
q.enqueue(32) # [32]
q.enqueue(7) # [32 7]
d = q.dequeue() # [7] d = 32
print(d)
q.enqueue(32) # [7 32]
a = q.peek() # 7 32 and a holds 32
print(a)
print(q.size())
d = q.dequeue()
dd = q.dequeue()
print(d)
print(dd)
for i in range(0,10):
q.enqueue(i)