assertFalse(exception.isRetryable());
    }

    @Test
    @DisplayName("Should create exception with cause")
    void testCreationWithCause() {
        // Given
        Exception cause = new RuntimeException("Original error");

        // When
        exception = new SmbOperationException(SmbOperationException.ErrorCode.CONNECTION_FAILED, "Failed to connect", cause);

    }

    @Test
    @DisplayName("BufferCache interface should define correct method signatures")
    void testInterfaceContract() {
        // Given
        BufferCache cache = mockBufferCache;

        // When & Then - verify interface methods exist and can be called
        assertDoesNotThrow(() -> {
            cache.getBuffer();

    void setUp() {
        MockitoAnnotations.openMocks(this);
    }

    @Test
    @DisplayName("Test constructor initializes fields correctly")
    void testConstructorInitialization() {
        // Given
        int offset = 0;
        int length = TEST_DATA.length;

        // When
        transCallNamedPipe = new TransCallNamedPipe(mockConfig, TEST_PIPE_NAME, TEST_DATA, offset, length);

        // Then

        response = new Smb2LockResponse(mockConfig);
    }

    @Test
    @DisplayName("Constructor should initialize with Configuration")
    void testConstructor() {
        // Given & When
        Smb2LockResponse lockResponse = new Smb2LockResponse(mockConfig);

        // Then
        assertNotNull(lockResponse);
        // Verify it's an instance of ServerMessageBlock2Response

        // Given
        Smb2CancelRequest request = new Smb2CancelRequest(mockConfig, 1L, 0L);

        // When
        Integer timeout = request.getOverrideTimeout();

        // Then
        assertNull(timeout, "Cancel requests should not override timeout");
    }

    @Test
    @DisplayName("Test allowChain returns false")
    void testAllowChain() {
        // Given

    void testIsAsyncTrue() {
        // Given
        when(response.isAsync()).thenReturn(true);

        // When
        boolean isAsync = response.isAsync();

        // Then
        assertTrue(isAsync);
        verify(response).isAsync();
    }

    @Test
    @DisplayName("Test isAsync method returning false")
    void testIsAsyncFalse() {
        // Given
        when(response.isAsync()).thenReturn(false);

    private static final short SMB2_TREE_DISCONNECT = 0x0004;

    @Test
    @DisplayName("Should create request with correct command type")
    void testConstructorSetsCorrectCommand() throws Exception {
        // Given
        Configuration mockConfig = mock(Configuration.class);

        // When
        Smb2TreeDisconnectRequest req = new Smb2TreeDisconnectRequest(mockConfig);

    /**
     * Test writeParameterWordsWireFormat returns 0
     */
    @Test
    @DisplayName("Test writeParameterWordsWireFormat always returns 0")
    public void testWriteParameterWordsWireFormat() {
        // Given
        smbComTreeDisconnect = new SmbComTreeDisconnect(config);
        byte[] dst = new byte[100];
        int dstIndex = 0;

        // When

        response = new Smb2TreeDisconnectResponse(mockConfig);
    }

    @Test
    @DisplayName("Should create response with configuration")
    void testConstructorWithConfiguration() {
        // Given & When
        Smb2TreeDisconnectResponse resp = new Smb2TreeDisconnectResponse(mockConfig);

        // Then
        assertNotNull(resp);
        assertTrue(resp instanceof ServerMessageBlock2Response);

        response = new Smb2FlushResponse(mockConfig);
    }

    @Test
    @DisplayName("Constructor should initialize with Configuration")
    void testConstructor() {
        // Given & When
        Smb2FlushResponse flushResponse = new Smb2FlushResponse(mockConfig);

        // Then
        assertNotNull(flushResponse);
        // Cannot test getConfig() as it's protected
    }

    @Nested