scoreUpdater.execute();

        // Boosters should be executed in priority order (3, 2, 1)
        List<Integer> executionOrder = PriorityTrackingBooster.getExecutionOrder();
        assertEquals(3, executionOrder.size());
        assertEquals(Integer.valueOf(3), executionOrder.get(0));
        assertEquals(Integer.valueOf(2), executionOrder.get(1));