def test_insert_two_then_remove(self):
queue = ArrayQueue()
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 = ArrayQueue()
queue.insert(1)
queue.remove()
self.assertTrue(queue.isEmpty())
def test_remove_empty(self):
queue = ArrayQueue()
with self.assertRaises(ValueError):
res = queue.remove()