def test_queue_peek(self):
que = Queue()
random_values = get_random_values()
for v in random_values:
que.push(v)
for v in random_values:
self.assertEqual(que.peek(), v)
que.pop()
def test_queue_init(self):
que = Queue()
self.assertEqual(que.size(), 0)
self.assertEqual(que.is_empty(), True)
with self.assertRaises(IndexError):
que.pop()
with self.assertRaises(IndexError):
que.peek()
def test_queue_size(self):
que = Queue()
random_values = get_random_values()
for i, v in enumerate(random_values):
que.push(v)
self.assertEqual(que.size(), i + 1)
for i in range(len(random_values)):
que.pop()
self.assertEqual(que.size(), len(random_values) - i - 1)
def test_queue_reverse(self):
que = Queue()
random_values = get_random_values()
for v in random_values:
que.push(v)
que.reverse()
for v in random_values[::-1]:
self.assertEqual(que.peek(), v)
que.pop()
def test_queue_is_empty(self):
que = Queue()
random_values = get_random_values()
self.assertEqual(que.is_empty(), True)
for v in random_values:
que.push(v)
self.assertEqual(que.is_empty(), False)
for v in random_values:
self.assertEqual(que.is_empty(), False)
que.pop()
self.assertEqual(que.is_empty(), True)
def test_queue_pop(self):
que = Queue()
random_values = get_random_values()
for v in random_values:
que.push(v)
for v in random_values:
que.pop()
self.assertEqual(que.is_empty(), True)
with self.assertRaises(IndexError):
que.pop()
with self.assertRaises(IndexError):
que.peek()
def test_queue_push(self):
que = Queue()
random_values = get_random_values()
for v in random_values:
que.push(v)
self.assertEqual(que.is_empty(), False)
self.assertEqual(que.peek(), v)
self.assertEqual(que.pop(), v)
