private CIFSContext mockContext;
    private SmbTransportImpl mockTransport;
    private Configuration mockConfig;
    private Credentials mockCredentials;
    private CredentialsInternal mockCredentialsInternal;

    @BeforeEach
    public void setUp() {
        mockContext = Mockito.mock(CIFSContext.class);
        mockTransport = Mockito.mock(SmbTransportImpl.class);

        when(mockTransport.getContext()).thenReturn(mockContext);
        when(mockContext.getConfig()).thenReturn(mockConfig);
        when(mockConfig.getLanManCompatibility()).thenReturn(3);
        when(mockTransport.getServerEncryptionKey()).thenThrow(new RuntimeException("Test exception"));

        assertThrows(SmbException.class, () -> new SMB1SigningDigest(mockTransport, mockAuth));
    }

    @Test

        SmbTransportImpl mockTransport = mock(SmbTransportImpl.class);
        SmbTransportInternal internal = mock(SmbTransportInternal.class);

        when(mockTransport.unwrap(SmbTransportInternal.class)).thenReturn(internal);
        when(internal.ensureConnected()).thenThrow(new IOException("Connection failed"));

        // Create a mock SmbTransportInternal for RdmaTransport
        SmbTransportInternal mockTransport = mock(SmbTransportInternal.class);
        when(mockTransport.isDisconnected()).thenReturn(true);
        when(mockTransport.toString()).thenReturn("MockTransport");

        try (RdmaTransport transport = new RdmaTransport(mockTransport, testContext)) {
            assertNotNull(transport, "Transport should not be null");

    @Test
    public void testSessionManagementConcurrentPerformance() throws Exception {
        SmbTransportImpl mockTransport = Mockito.mock(SmbTransportImpl.class);
        Mockito.when(mockTransport.acquire()).thenReturn(mockTransport);

        SmbSessionImpl session = new SmbSessionImpl(mockContext, "testhost", "testdomain", mockTransport);

        int threadCount = 10;
        int operationsPerThread = 200;