assertEquals("test^path", result);

        result = systemHelper.encodeUrlFilter("test space");
        assertEquals("test+space", result);
    }

    public void test_normalizeLang_caseVariations() {
        assertEquals("ja", systemHelper.normalizeLang("JA"));
        assertEquals("ja", systemHelper.normalizeLang("Ja"));
        assertEquals("zh_CN", systemHelper.normalizeLang("ZH-CN"));