}

            @Override
            public String getIndexFieldFiletype() {
                return "filetype";
            }

            @Override
            public String getIndexFieldFilename() {
                return "filename";
            }

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

            public String getIndexFieldFiletype() {
                return baseConfig.getIndexFieldFiletype();
            }

            @Override
            public String getIndexFieldFilename() {
                return baseConfig.getIndexFieldFilename();
            }

            @Override
            public String getIndexFieldCreated() {
                return baseConfig.getIndexFieldCreated();
            }

            }

            @Override
            public String getIndexFieldFiletype() {
                return "filetype";
            }

            @Override
            public String getIndexFieldFilename() {
                return "filename";
            }

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

            }

            @Override
            public String getIndexFieldFiletype() {
                return "filetype";
            }

            @Override
            public String getIndexFieldFilename() {
                return "filename";
            }

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

            }

            @Override
            public String getIndexFieldFiletype() {
                return "filetype";
            }

            @Override
            public String getIndexFieldFilename() {
                return "filename";
            }

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

        assertEquals("filetype", fessConfig.getIndexFieldFiletype());
    }

    @Test
    public void test_indexFieldFilename() {
        assertEquals("filename", fessConfig.getIndexFieldFilename());
    }

    @Test
    public void test_indexFieldThumbnail() {
        assertEquals("thumbnail", fessConfig.getIndexFieldThumbnail());
    }

    @Test

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

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