Map<String, Object> metaDataMap = data.getMetaDataMap();
        metaDataMap.put("key2", "value2");

        assertEquals(2, data.getMetaDataMap().size());
    }

    public void test_childUrlOperations() {
        // Test child URL operations
        ResponseData data = new ResponseData();

        RequestData child1 = new RequestData();
        child1.setMethod(Method.GET);