}

        try {
            // In real implementation, this would perform RDMA read into the buffer
            // For skeleton implementation, simulate reading the requested amount
            int bytesToRead = Math.min(length, buffer.remaining());

            // Simulate RDMA read operation

        }
    }

    @Override
    protected int generateLocalKey() {
        // In real implementation, this would get the local key from DiSNI:
        // return memoryRegister.getLkey();
        return keyGenerator.getAndIncrement();
    }

    @Override
    protected int generateRemoteKey() {
        // In real implementation, this would get the remote key from DiSNI:
        // return memoryRegister.getRkey();

    private int getMaxChannelsFromConfig(Configuration config) {
        // In a real implementation, this would read from configuration
        return 4; // Default to 4 channels
    }

    private LoadBalancingStrategy getLoadBalancingStrategyFromConfig(Configuration config) {
        // In a real implementation, this would read from configuration
        return LoadBalancingStrategy.ROUND_ROBIN;
    }

import jcifs.internal.smb2.rdma.RdmaAccess;
import jcifs.internal.smb2.rdma.RdmaMemoryRegion;

/**
 * TCP memory region implementation.
 *
 * For TCP fallback, memory regions are just wrappers around
 * ByteBuffers since no real RDMA registration is needed.
 */
public class TcpMemoryRegion extends RdmaMemoryRegion {

    private static final AtomicInteger keyGenerator = new AtomicInteger(1000);

    /**
     * Create new TCP memory region

    SmbTransport transport;

    // static helper that returns the mocked transport. The real class
    // performs several other operations, but for the purpose of the test
    // we intercept the factory call.
    private MockedStatic<SmbTransport> smbtStatic;

    @BeforeEach
    void setUp() throws Exception {
        // Create a real NtlmPasswordAuthentication instance

        // Default constructor
    }

    private static final Logger log = LoggerFactory.getLogger(DisniRdmaProvider.class);

    // DiSNI components - these would be actual DiSNI objects in a real implementation
    private Object endpointGroup; // RdmaActiveEndpointGroup<DisniRdmaEndpoint>
    private Object endpoint; // RdmaActiveEndpoint
    private boolean initialized = false;

    @Override

    }

    /**
     * Integration test that would require a real cluster environment.
     * Disabled by default - enable with -Dwitness.integration.test=true
     */
    @Test
    void testWitnessEnvironmentConfiguration() throws Exception {
        // Test simulating real witness environment scenarios
        // This test validates integration patterns without requiring real cluster

        // Simulate witness service discovery

                int read = socketChannel.read(tempBuffer);
                if (read < 0) {
                    break;
                }
                totalRead += read;
            }

            tempBuffer.flip();
            buffer.put(tempBuffer);

            log.debug("TCP RDMA read completed: {} bytes", totalRead);
            return totalRead;

            doThrow(handleCloseException).when(mockSmbPipeHandleInternal).close();

            // Setup close to call real method
            doCallRealMethod().when(handle).close();

            // The finally block ensures pipe is closed even if handle close fails
            // Since the real method will propagate the exception from handle.close(),
            // we need to catch it to verify that pipe.close() was still called

    /**
     * Sets up the mocks and the NtlmHttpURLConnection instance before each test.
     * @throws IOException
     */
    @BeforeEach
    void setUp() throws IOException {
        // Create a real URL instead of mocking to avoid protocol issues
        mockUrl = new URL("http://test.example.com/path");

        // Basic setup for mocks to avoid NullPointerExceptions
        when(mockConnection.getURL()).thenReturn(mockUrl);