assertNull(responseData.getRuleId());
        responseData.setRuleId("rule-123");
        assertEquals("rule-123", responseData.getRuleId());
    }

    @Test
    public void test_constants_mappingTypes() {
        assertEquals("array", Constants.MAPPING_TYPE_ARRAY);
        assertEquals("string", Constants.MAPPING_TYPE_STRING);
        assertEquals("long", Constants.MAPPING_TYPE_LONG);