// Verify
        assertTrue(result.isPresent());
        assertEquals(Locale.UK, result.get());
    }

    // Test findBusinessLocale with blank parameter name
    public void test_findBusinessLocale_withBlankParameterName() {
        // Setup mock config with blank parameter name
        FessConfig mockConfig = new FessConfig.SimpleImpl() {
            @Override
            public String getQueryBrowserLangParameterName() {