def setUp(self):
self.empty_queue = Queue()
self.queue = Queue()
self.seq = [0, 2, 4, 6, 8]
for x in self.seq:
self.queue.enqueue(x)
class TestQueue(unittest.TestCase):
def setUp(self):
self.empty_queue = Queue()
self.queue = Queue()
self.seq = [0, 2, 4, 6, 8]
for x in self.seq:
self.queue.enqueue(x)
def test_enqueue_to_empty_queue(self):
self.empty_queue.enqueue(0)
self.assertEqual(self.empty_queue.peek(), 0)
def test_enqueue_to_queue(self):
self.queue.enqueue(10)
for i in range(len(self.seq)):
self.queue.dequeue()
self.assertEqual(self.queue.peek(), 10)
def test_dequeue_from_empty_queue(self):
self.assertRaises(IndexError, self.empty_queue.dequeue)
def test_dequeue_from_queue(self):
self.assertEqual(self.queue.dequeue(), self.seq[0])
def test_size_of_empty_queue(self):
self.assertEqual(self.empty_queue.size, 0)
def test_size_of_queue(self):
self.assertEqual(self.queue.size, len(self.seq))
def test_peek_at_empty_queue(self):
self.assertRaises(IndexError, self.empty_queue.peek)
def test_peek_at_queue(self):
self.assertEqual(self.queue.peek(), self.seq[0])
def test_iterate_empty_queue(self):
for curr in self.empty_queue:
self.assertEqual(False, True)
def test_iterate_queue(self):
iter_seq = []
for curr in self.queue:
iter_seq.append(curr)
self.assertEqual(iter_seq, self.seq)
def test_str_empty_queue(self):
self.assertEqual(str(self.empty_queue), "")
def test_str_queue(self):
self.assertEqual(str(self.queue), " ".join([str(x) for x in self.seq]))
def tearDown(self):
pass
