// since it is unused in this test, we arbitrarily choose 0.0
priorityqueue_insert(pq, 0, 0.0);
priorityqueue_insert(pq, 0, 0.0);
// since it is unused in this test, we arbitrarily choose 0.0
priorityqueue_insert(pq, 0, 0.0);
priorityqueue_insert(pq, 0, 0.0);