newUrl1.setUrl("https://example.com/new1");

        UrlQueueImpl<Long> newUrl2 = new UrlQueueImpl<>();
        newUrl2.setSessionId(sessionId);
        newUrl2.setUrl("https://example.com/new2");

        List<UrlQueueImpl<Long>> newUrlList = new ArrayList<>();
        newUrlList.add(newUrl1);
        newUrlList.add(newUrl2);

        when(dataHelper.getUrlQueueList(sessionId)).thenReturn(existingQueue);