assertTrue(urls.contains("http://www.example.com/page" + i));
        }

        dataService.delete(sessionId);
    }

    public void test_getCount_Tx() {
        final String sessionId = "count_session1";

        // Initially no data
        assertEquals(0, dataService.getCount(sessionId));

        // Insert test data
        for (int i = 1; i <= 5; i++) {