// Add some test data
        crawler.addUrl("http://example.com/");

        // Perform cleanup - should not throw exception
        crawler.cleanup(sessionId);
    }

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

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

            stream.read();
            assertEquals(9, stream.available());
            stream.read();
            assertEquals(8, stream.available());
        }
    }

    public void test_skip() throws Exception {
        // Create a temporary file with test data
        File tempFile = File.createTempFile("test-", ".tmp");
        try (FileOutputStream fos = new FileOutputStream(tempFile)) {