MockitoAnnotations.openMocks(this);
        when(session.getConfig()).thenReturn(config);
        when(session.getContext()).thenReturn(context);
        when(session.getTransport()).thenReturn(transport);
        when(session.acquire()).thenReturn(session);
        when(config.isTraceResourceUsage()).thenReturn(false);
        when(context.getConfig()).thenReturn(config);
        when(session.isConnected()).thenReturn(true);
    }

    @BeforeEach
    void setUp() {
        // Common setup for most tests
        lenient().when(mockFileHandle.getTree()).thenReturn(mockTreeHandle);
        lenient().when(mockTreeHandle.getConfig()).thenReturn(mockConfig);
    }

    @Test
    void testWriteSingleByte() throws IOException, CIFSException {
        // Given
        when(mockTreeHandle.isSMB2()).thenReturn(true);

    @Override
    protected Smb2TreeDisconnectResponse createResponse(final CIFSContext tc,
            final ServerMessageBlock2Request<Smb2TreeDisconnectResponse> req) {
        return new Smb2TreeDisconnectResponse(tc.getConfig());
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.CommonServerMessageBlockRequest#size()
     */
    @Override
    public int size() {

public void testRdmaFallbackToTcp() throws Exception {
    // Test that we properly fall back to TCP when RDMA is not available
    CIFSContext context = getTestContext();
    context.getConfig().setProperty("jcifs.smb.client.useRDMA", "true");
    context.getConfig().setProperty("jcifs.smb.client.rdmaProvider", "nonexistent");
    
    SmbFile file = new SmbFile("smb://server/share/test.txt", context);
    

    private Configuration mockConfig;

    @BeforeEach
    void setUp() {
        mockContext = mock(CIFSContext.class);
        mockConfig = mock(Configuration.class);
        when(mockContext.getConfig()).thenReturn(mockConfig);
        when(mockConfig.getLeaseTimeout()).thenReturn(30000);
        when(mockConfig.getMaxLeases()).thenReturn(1000);
        when(mockConfig.getLeaseBreakTimeout()).thenReturn(60);

        void testConstructorWithConfig() {
            TestServerMessageBlock2Request request = new TestServerMessageBlock2Request(mockConfig);
            assertNotNull(request);
            assertEquals(mockConfig, request.getConfig());
        }

        @Test
        @DisplayName("Should create request with configuration and command")
        void testConstructorWithConfigAndCommand() {
            int command = SMB2_NEGOTIATE;

    @Mock
    private CIFSContext mockContext;

    private Smb2EchoRequest echoRequest;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        when(mockContext.getConfig()).thenReturn(mockConfig);
        echoRequest = new Smb2EchoRequest(mockConfig);
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test

private Smb2LeaseKey leaseKey;
private int leaseState;
private LeaseManager leaseManager;

protected void doConnect() throws IOException {
    // ... existing connection logic ...
    
    if (context.getConfig().isUseLeases() && tree.getSession().supports(SMB3_0)) {
        // Request lease when opening file
        leaseManager = tree.getSession().getLeaseManager();
        int requestedState = isDirectory() ? 

        assertTrue(resp.isLoggedInAsGuest(), "Guest/anonymous should be detected");

        // prepare should propagate session id when received
        CIFSContext mockCtx = mock(CIFSContext.class);
        when(mockCtx.getConfig()).thenReturn(mock(Configuration.class));
        Smb2SessionSetupRequest nextReq = new Smb2SessionSetupRequest(mockCtx, 0, 0, 0L, null);
        assertEquals(0L, nextReq.getSessionId());
        resp.prepare(nextReq);

    @Mock
    private SmbTransportInternal mockTransport;

    @BeforeEach
    void setUp() {
        dfsResolver = new DfsImpl(mockContext);
        when(mockContext.getConfig()).thenReturn(mockConfig);
    }

    // Test for isTrustedDomain method
    @Test
    void testIsTrustedDomain_DfsDisabled() throws CIFSException {
        when(mockConfig.isDfsDisabled()).thenReturn(true);