assertEquals("smb:", protocolHelper.getFileProtocols()[1]);
        assertTrue(protocolHelper.isValidFileProtocol("smb://server/share"));
    }

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