final SearchResponse mockScrollResponse = mock(SearchResponse.class);
        final SearchHits mockScrollHits = mock(SearchHits.class);
        final ActionFuture<SearchResponse> mockScrollFuture = mock(ActionFuture.class);

        final BulkRequestBuilder mockBulkBuilder = mock(BulkRequestBuilder.class);
        final BulkResponse mockBulkResponse = mock(BulkResponse.class);

        crawlerContext.maxAccessCount = 0;

        urlQueueService = mock(UrlQueueService.class);
        dataService = mock(DataService.class);
        crawlerContainer = mock(CrawlerContainer.class);
        logHelper = mock(LogHelper.class);
        clientFactory = mock(CrawlerClientFactory.class);
        urlFilter = mock(UrlFilter.class);
        ruleManager = mock(RuleManager.class);

        crawlerContext.urlFilter = urlFilter;

/**
 * Test class for ResponseDataUtil.
 *
 * @author shinsuke
 */
public class ResponseDataUtilTest extends PlainTestCase {

    public void test_createResponseBodyFile_basic() throws Exception {
        // Create a mock ResponseData
        ResponseData responseData = new ResponseData() {
            @Override
            public InputStream getResponseBody() {
                return new ByteArrayInputStream("Test response body".getBytes());

    /**
     * Get the value for the key 'mail.send.mock'. <br>
     * The value is, e.g. true <br>
     * comment: Does it send mock mail? (true: no send actually, logging only)
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getMailSendMock();

    /**
     * Is the property for the key 'mail.send.mock' true? <br>
     * The value is, e.g. true <br>

import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

/**
 * Test class for {@link SitemapsResponseProcessor}.
 */
public class SitemapsResponseProcessorTest extends PlainTestCase {

    @InjectMocks
    private SitemapsResponseProcessor processor;

    @Mock
    private CrawlerContainer crawlerContainer;

    @Mock
    private SitemapsHelper sitemapsHelper;

        CrawlingParameterUtil.setUrlQueueService(null);
        CrawlingParameterUtil.setDataService(null);
        super.tearDown();
    }

    // Helper method to create a simple mock UrlQueue
    private UrlQueue<?> createMockUrlQueue(final String sessionId, final String url) {
        return new UrlQueue<Object>() {
            @Override
            public Object getId() {
                return null;

import org.dbflute.utflute.core.PlainTestCase;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

/**
 * Test class for {@link UrlFilterServiceImpl}.
 */
public class UrlFilterServiceImplTest extends PlainTestCase {

    @InjectMocks
    private UrlFilterServiceImpl service;

    @Mock
    private MemoryDataHelper dataHelper;

    @Override

import org.dbflute.utflute.core.PlainTestCase;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

/**
 * Test class for {@link UrlQueueServiceImpl}.
 */
public class UrlQueueServiceImplTest extends PlainTestCase {

    @InjectMocks
    private UrlQueueServiceImpl service;

    @Mock
    private MemoryDataHelper dataHelper;

    @Override

    C --> D[Multi-Channel]
    D --> E[RDMA Support]
    C --> F[Witness Protocol]
    D --> F
```

## Testing Strategy

### Unit Tests
- Individual component testing for each feature
- Mock-based testing for protocol interactions
- State machine validation

### Integration Tests
- Feature interaction testing
- Network failure simulation
- Performance benchmarking

        // Redistribute pending operations
        redistributePendingOperations(failedChannel);

        // Check if recovery is viable by testing if createTransport works
        // If createTransport returns null (no mock setup), remove immediately
        try {
            SmbTransport testTransport = manager.createTransport(failedChannel.getLocalInterface(), failedChannel.getRemoteInterface());
            if (testTransport == null) {