void testEncodeSizeConsistency() {
            // Given
            byte[] sourceKey = new byte[SOURCE_KEY_SIZE];
            Arrays.fill(sourceKey, (byte) 0x55);

            SrvCopychunk[] testCases = { new SrvCopychunk(1, 2, 3), new SrvCopychunk(4, 5, 6), new SrvCopychunk(7, 8, 9),
                    new SrvCopychunk(10, 11, 12), new SrvCopychunk(13, 14, 15) };

    void cacheCapacityAndRetrievalOrder() {
        BufferCacheImpl impl = new BufferCacheImpl(2, 3);
        byte[] a = new byte[1];
        byte[] c = new byte[2];
        byte[] d = new byte[4];

        impl.releaseBuffer(a); // goes to slot 0
        impl.releaseBuffer(c); // goes to slot 1
        impl.releaseBuffer(d); // dropped (cache full)

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

    @Test
    @DisplayName("Test update method with valid data")
    void testUpdateWithValidData() {
        SMB1SigningDigest digest = new SMB1SigningDigest(testMacSigningKey);
        byte[] data = new byte[] { 0x01, 0x02, 0x03, 0x04 };

        CIFSContext context = new BaseContext(new PropertyConfiguration());
        PersistentHandleManager manager = new PersistentHandleManager(context);
        
        // Create persistent handle
        HandleGuid guid = manager.requestDurableHandle(
            "/test/file.txt",
            HandleType.PERSISTENT,
            0,
            null
        );
        
        byte[] fileId = new byte[16];

            throw new CIFSException("Invalid offset or length");
        }
        if (!isAlgorithmSupported(algorithm)) {
            throw new CIFSException("Unsupported compression algorithm: " + algorithm);
        }
        if (length < MIN_COMPRESSION_SIZE) {
            log.debug("Data too small for compression ({} bytes), returning uncompressed", length);
            byte[] result = new byte[length];

    public void setUp() {
        MockitoAnnotations.openMocks(this);
        reconnector = new HandleReconnector(mockManager, 2, 50); // 2 retries, 50ms delay

        HandleGuid guid = new HandleGuid();
        byte[] fileId = new byte[16];
        for (int i = 0; i < 16; i++) {
            fileId[i] = (byte) (i + 1);
        }

        testHandle = new HandleInfo("/test/file.txt", guid, fileId, HandleType.DURABLE_V2, 120000, null);
    }

                    Arguments.of(new int[0], 4), // size() returns 4 for empty array
                    Arguments.of(new int[] { 1 }, 4 + 2), // size() returns 4 + 2*1
                    Arguments.of(new int[] { 1, 2 }, 4 + 4), // size() returns 4 + 2*2
                    Arguments.of(new int[] { 1, 2, 3, 4, 5 }, 4 + 10) // size() returns 4 + 2*5
            );
        }

                new SessionRequestPacket(mockConfig, new TestNetbiosName("SERVER", 0x20, null), new TestNetbiosName("CLIENT", 0x00, null));

        byte[] buffer = new byte[256];
        int written = writePacket.writeTrailerWireFormat(buffer, 0);

        ByteArrayInputStream bais = new ByteArrayInputStream(buffer, 0, written);
        SessionRequestPacket readPacket = new SessionRequestPacket(mockConfig);

            CreateContextResponse[] contexts = new CreateContextResponse[3];
            byte[] buffer = new byte[300];

            contexts[0] = new TestCreateContextResponse("CONTEXT1".getBytes(StandardCharsets.UTF_8));
            contexts[1] = new TestCreateContextResponse("CONTEXT2".getBytes(StandardCharsets.UTF_8));
            contexts[2] = new TestCreateContextResponse("CONTEXT3".getBytes(StandardCharsets.UTF_8));

        NtlmContext context = new NtlmContext(mockAuth, true);
        context.initSecContext(new byte[0], 0, 0); // state -> 2

        byte[] serverChallenge = new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
        int type2Flags = NtlmFlags.NTLMSSP_NEGOTIATE_NTLM | NtlmFlags.NTLMSSP_REQUEST_TARGET;
        Type2Message type2Message = new Type2Message(type2Flags, serverChallenge, domain);