private void stubValidTree(long treeId, boolean connected, boolean smb2) {
        lenient().when(tree.acquire()).thenReturn(tree);
        lenient().when(tree.getTreeId()).thenReturn(treeId);
        lenient().when(tree.isConnected()).thenReturn(connected);
        lenient().when(tree.isSMB2()).thenReturn(smb2);
    }

    @Test
    @DisplayName("Constructor with null tree throws NPE (byte[] fid variant)")

    @BeforeEach
    void setup() {
        // Default: do not enforce or disable SPNEGO integrity
        when(this.config.isEnforceSpnegoIntegrity()).thenReturn(false);
        when(this.config.isDisableSpnegoIntegrity()).thenReturn(false);
        this.mechs = new ASN1ObjectIdentifier[] { new ASN1ObjectIdentifier("1.2.3.4") };
    }

    private SpnegoContext newContext() {

        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);
        leaseManager = new LeaseManager(mockContext);
    }

    @AfterEach
    void tearDown() {

    void testVerifyReturnsTrue() {
        // Arrange
        int offset = 0;
        int length = testData.length;
        int extraPad = 0;
        when(signingDigest.verify(testData, offset, length, extraPad, message)).thenReturn(true);

        // Act
        boolean result = signingDigest.verify(testData, offset, length, extraPad, message);

        // Assert
        assertTrue(result, "Verify should return true for valid signature");

    @Test
    @DisplayName("send without params returns the stubbed response")
    void send_noParams_returnsResponse() throws Exception {
        // Arrange - generic return type respected
        when(tree.send(request)).thenReturn(response);

        // Act
        CommonServerMessageBlockResponse out = tree.send(request);

        // Assert
        assertSame(response, out);
        verify(tree).send(request);
    }

    @Test

            // Given: NdrShort and mock returning specific value
            int decodedValue = 200;
            NdrShort ndrShort = new NdrShort(0);
            when(mockBuffer.dec_ndr_short()).thenReturn(decodedValue);

            // When: Decoding the value
            ndrShort.decode(mockBuffer);

            // Then: Should call dec_ndr_short and set value correctly

        when(mockHandle.getFileId()).thenReturn(new byte[16]);

        when(mockTree.getReceiveBufferSize()).thenReturn(0x10000);
        when(mockTree.getMaximumBufferSize()).thenReturn(0x10000);
        when(mockTree.getConfig()).thenReturn(mockConfig);
        when(mockTree.isConnected()).thenReturn(true);
        when(mockTree.getTreeId()).thenReturn(1L);

        when(mockFile.getType()).thenReturn(SmbConstants.TYPE_FILESYSTEM);
    }

    private Smb2QueryDirectoryResponse response;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        when(mockConfig.isUseUnicode()).thenReturn(true);
        when(mockConfig.getMaximumBufferSize()).thenReturn(65536);
    }

    @Test
    @DisplayName("Test constructor initializes with config and expectInfoClass")
    void testConstructor() {

        when(request.cwd()).thenReturn(workingDirectory);
        when(request.installationDirectory()).thenReturn(Paths.get("/maven"));
        when(request.userHomeDirectory()).thenReturn(Paths.get("/home/user"));
        when(request.topDirectory()).thenReturn(workingDirectory);
        when(request.rootDirectory()).thenReturn(Optional.empty());
        when(request.userProperties()).thenReturn(Map.of());

    @Test
    @DisplayName("Test complete wire format writing")
    void testCompleteWireFormatWriting() {
        when(mockFileInfo.getFileInformationLevel()).thenReturn((byte) FileInformation.FILE_BASIC_INFO);
        when(mockFileInfo.encode(any(byte[].class), anyInt())).thenReturn(50);

        trans2SetFileInfo = new Trans2SetFileInformation(config, TEST_FID, mockFileInfo);

        byte[] setupBuffer = new byte[256];