systemHelper.filterPathEncoding = "xxx";
        path = "あいう";
        assertEquals(path, systemHelper.encodeUrlFilter(path));
    }

    @Test
    public void test_normalizeHtmlLang() {
        assertEquals("ja", systemHelper.normalizeHtmlLang("ja"));

        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;