@Test
        @DisplayName("Should decode buffer with no referrals")
        void testDecodeNoReferrals() {
            // Prepare test data: pathConsumed=0, numReferrals=0, tflags=0
            byte[] testBuffer = new byte[8];
            ByteBuffer bb = ByteBuffer.wrap(testBuffer).order(ByteOrder.LITTLE_ENDIAN);
            bb.putShort((short) 0); // pathConsumed (will be divided by 2)
            bb.putShort((short) 0); // numReferrals

        this.endOfFile = eofOfFile;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.Decodable#decode(byte[], int, int)
     */
    @Override
    public int decode(final byte[] buffer, final int bufferIndex, final int len) throws SMBProtocolDecodingException {
        this.endOfFile = SMBUtil.readInt8(buffer, bufferIndex);
        return 8;
    }

    /**

        return this.indexNumber;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.Decodable#decode(byte[], int, int)
     */
    @Override
    public int decode(final byte[] buffer, final int bufferIndex, final int len) throws SMBProtocolDecodingException {
        this.indexNumber = SMBUtil.readInt8(buffer, bufferIndex);
        return 8;
    }

    /**
     * {@inheritDoc}
     *

    }

    @Override
    public void write(final int b) throws IOException {
        tmp[0] = (byte) b;
        write(tmp, 0, 1);
    }

    @Override
    public void write(final byte[] b) throws IOException {
        write(b, 0, b.length);
    }

    @Override
    public void write(final byte[] b, final int off, int len) throws IOException {
        if (len < 0) {
            len = 0;
        }

    }

    @Override
    int writeParameterWordsWireFormat(final byte[] dst, final int dstIndex) {
        writeInt2(sid, dst, dstIndex);
        return 2;
    }

    @Override
    int writeBytesWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    @Override
    int readParameterWordsWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override

    }

    @Override
    protected int writeSetupWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    @Override
    protected int writeParametersWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    @Override
    protected int writeDataWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    @Override

        assertThrows(NullPointerException.class, () -> {
            new Type3Message((byte[]) null);
        });
    }

    /**
     * Helper method to create a mock Type 2 message for testing
     */
    private Type2Message createMockType2Message() {
        // Create a basic Type 2 message with challenge
        byte[] challenge = new byte[8];
        new SecureRandom().nextBytes(challenge);

    // Test
    assertThrows(FileNotFoundException.class, () -> Files.map(file));
  }

  public void testMap_readWrite() throws IOException {
    // Test data
    int size = 1024;
    byte[] expectedBytes = new byte[size];
    byte[] bytes = newPreFilledByteArray(1024);

    // Setup
    File file = createTempFile();
    Files.write(bytes, file);

    Random random = new Random();

        index += SmbConstants.SIGNATURE_OFFSET;
        final byte[] sequence = new byte[8];
        SMBUtil.writeInt4(msg.getSignSeq(), sequence, 0);
        update(sequence, 0, sequence.length);
        index += 8;
        if (msg.getCommand() == ServerMessageBlock.SMB_COM_READ_ANDX) {
            /*
             * SmbComReadAndXResponse reads directly from the stream into separate byte[] b.
             */

                    new byte[] { (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
                            (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF },
                    originalFileId, "Original FileId array should remain all 0xFF");
        }
    }

    @Nested
    @DisplayName("Constant Relationships")