class QueueTester(unittest.TestCase):
def setUp(self):
self.Q = Queue(25)
def test_increment(self):
""" Testing queue index incrementing. """
for _ in range(10):
__ = randrange(24)
self.assertEqual(__ + 1, self.Q._inc(__))
self.assertEqual(0, self.Q._inc(24))
def test_isEmpty_truth(self):
self.assertTrue(self.Q._isEmpty())
def test_isEmpty_false(self):
self.Q.enqueue(1)
self.assertFalse(self.Q._isEmpty())
def test_isFull_truth(self):
for _ in range(25):
self.Q.enqueue(_)
self.assertTrue(self.Q._isFull())
def test_isFull_false(self):
self.assertFalse(self.Q._isFull())
def test_enqueue_success(self):
for _ in range(20):
__ = randrange(100)
self.Q.enqueue(__)
self.assertEqual(self.Q.buffer[self.Q.head], __) ## !!!
self.assertEqual(self.Q.tail, _ + 1)
def test_enqueue_failure(self):
for _ in range(25):
self.Q.enqueue(_)
with self.assertRaises(ValueError):
self.Q.enqueue(-1)
def test_dequeue_success(self):
_ = randrange(50)
self.Q.enqueue(_)
self.assertEqual(self.Q.dequeue(), _)
def test_dequeue_failure(self):
with self.assertRaises(ValueError):
self.Q.dequeue()
