def test_insert_two_then_remove(self):
queue = ListQueue()
queue.insert(1)
queue.insert(2)
res = queue.remove()
self.assertEqual(res, 1)
self.assertEqual(queue.list(), [2])
def test_is_empty_when_inserted_and_deleted(self):
queue = ListQueue()
queue.insert(1)
queue.remove()
self.assertTrue(queue.isEmpty())
def test_insert_one(self):
queue = ListQueue()
queue.insert(1)
self.assertEqual(queue.list(), [1])
def test_is_empty_when_inserted(self):
queue = ListQueue()
queue.insert(1)
self.assertFalse(queue.isEmpty())
def test_is_empty_when_empty(self):
queue = ListQueue()
self.assertTrue(queue.isEmpty())
def test_remove_empty(self):
queue = ListQueue()
with self.assertRaises(ValueError):
res = queue.remove()
def test_insert_until_full(self):
queue = ListQueue(5)
for i in range(5):
queue.insert(i)
self.assertEqual(queue.list(), [0, 1, 2, 3, 4])
def test_head_non_empty(self):
queue = ListQueue()
queue.insert(1)
self.assertEqual(queue.head(), 1)
def test_head_empty(self):
queue = ListQueue()
with self.assertRaises(ValueError):
queue.head()
def test_insert_two(self):
queue = ListQueue()
queue.insert(1)
queue.insert(2)
self.assertEqual(queue.list(), [1, 2])