value = "zh_CN";
        assertEquals("zh_CN", systemHelper.normalizeLang(value));

        value = "zh-tw";
        assertEquals("zh_TW", systemHelper.normalizeLang(value));

        value = "zh_TW";
        assertEquals("zh_TW", systemHelper.normalizeLang(value));
    }

    public void test_createSearchRole() {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {

        assertArrays(new String[] { "zh-cn" }, fessConfig.normalizeQueryLanguages(new String[] { "zh", "zh-cn" }));
        assertArrays(new String[] { "zh-tw" }, fessConfig.normalizeQueryLanguages(new String[] { "zh_TW" }));
    }

    public void test_getQueryLocaleFromName() {
        FessProp.propMap.clear();
        FessConfig fessConfig = new FessConfig.SimpleImpl() {
            @Override