// Test addScoreBooster with different priorities
    public void test_addScoreBooster_sortsByPriority() {
        PriorityTrackingBooster booster1 = new PriorityTrackingBooster(1, 100L);
        PriorityTrackingBooster booster2 = new PriorityTrackingBooster(3, 200L);
        PriorityTrackingBooster booster3 = new PriorityTrackingBooster(2, 300L);

        scoreUpdater.addScoreBooster(booster1);
        scoreUpdater.addScoreBooster(booster2);