} catch (Exception e) {
                    throw new RuntimeException("Failed to initialize prop field", e);
                }
            }

            @Override
            public String getIndexFieldTitle() {
                return "title";
            }

            @Override
            public String getIndexFieldContent() {
                return "content";
            }

            @Override

            @Override
            public String getIndexFieldUrl() {
                return "url";
            }

            @Override
            public String getIndexFieldTitle() {
                return "title";
            }
        });
    }

    @Override
    protected void tearDown(TestInfo testInfo) throws Exception {
        ComponentUtil.setFessConfig(null);

                // Override to return empty string instead of null to avoid NullPointerException
                return "";
            }

            @Override
            public String getIndexFieldTitle() {
                return "title";
            }

            @Override
            public String getIndexFieldContent() {
                return "content";
            }

            @Override

            }

            @Override
            public String getIndexFieldCreated() {
                return "created";
            }

            @Override
            public String getIndexFieldTitle() {
                return "title";
            }

            @Override
            public String getIndexFieldDigest() {
                return "digest";
            }

            @Override

            }

            @Override
            public String getIndexFieldCreated() {
                return "created";
            }

            @Override
            public String getIndexFieldTitle() {
                return "title";
            }

            @Override
            public String getIndexFieldDigest() {
                return "digest";
            }

            @Override

    public void test_indexFieldBoost() {
        assertEquals("boost", fessConfig.getIndexFieldBoost());
    }

    @Test
    public void test_indexFieldTitle() {
        assertEquals("title", fessConfig.getIndexFieldTitle());
    }

    @Test
    public void test_indexFieldContent() {
        assertEquals("content", fessConfig.getIndexFieldContent());
    }

    @Test
    public void test_indexFieldCache() {

     */
    protected void normalizeData(final ResponseData responseData, final Map<String, Object> dataMap) {
        final Object titleObj = dataMap.get(fessConfig.getIndexFieldTitle());
        if (titleObj != null) {
            dataMap.put(fessConfig.getIndexFieldTitle(),
                    ComponentUtil.getDocumentHelper().getTitle(responseData, titleObj.toString(), dataMap));
        }
    }

    /**

     * The value is, e.g. title <br>
     * comment: Field name for title in the index.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexFieldTitle();

    /**
     * Get the value for the key 'index.field.host'. <br>
     * The value is, e.g. host <br>
     * comment: Field name for host in the index.