assertTrue(protocolHelper.isValidFileProtocol("ftp://server/path"));
        assertTrue(protocolHelper.isValidFileProtocol("file://"));
    }

    @Test
    public void test_isValidFileProtocol_invalidUrls() {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            @Override
            public String getCrawlerWebProtocols() {
                return "http,https";
            }