public void tearDown() throws Exception {
        super.tearDown();
        // close runner
        runner.close();
        // delete all files
        runner.clean();
    }

    public void test_executeTx() throws Exception {
        final CrawlerWebServer server = new CrawlerWebServer(7070);
        server.start();

        final String url = "http://localhost:7070/";
        try {

    @Override
    public void setUp() throws Exception {
        super.setUp();
        // Create a concrete implementation for testing
        jobExecutor = new TestJobExecutor();
    }

    public void test_execute() {
        // Test execute method
        String scriptType = "test";
        String script = "test script";
        Object result = jobExecutor.execute(scriptType, script);