assertNotNull(id1);
        assertNotNull(id2);
        assertFalse(id1.equals(id2));
        assertTrue(id1.length() > 0);
        assertFalse(id1.contains("-"));
    }

    public void test_generateId_format() {
        String id = queryHelper.generateId();
        // UUID without dashes should be 32 characters
        assertEquals(32, id.length());
        assertTrue(id.matches("[a-f0-9]{32}"));
    }