viewHelper.init();

        Map<String, Object> doc = new HashMap<>();
        doc.put("config_id", "test");
        doc.put("url", "http://example.com");

        try {
            viewHelper.asContentResponse(doc);
            assertTrue(true);
        } catch (Exception e) {
            assertTrue(true);
        }
    }

    @Test
    public void test_removeHighlightTag() {