assertEquals(0x08, SmbConstants.ATTR_VOLUME);
        assertEquals(0x10, SmbConstants.ATTR_DIRECTORY);
    }

    /**
     * Test FLAGS constants.
     */
    @Test
    @DisplayName("FLAGS constants are correct")
    void flagsTest() {
        assertEquals(0x00, SmbConstants.FLAGS_NONE);
        assertEquals(0x08, SmbConstants.FLAGS_PATH_NAMES_CASELESS);

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        testRequestBuffer = new byte[] { 0x01, 0x02, 0x03, 0x04 };
        testResponseBuffer = new byte[] { 0x05, 0x06, 0x07, 0x08 };
        negotiation = new SmbNegotiation(mockRequest, mockResponse, testRequestBuffer, testResponseBuffer);
    }

    @Test
    @DisplayName("Constructor should properly initialize all fields")

            byte[] buffer = new byte[24];
            // Skip idFileSystem (4 bytes)
            buffer[4] = 0x08; // sectPerAlloc = 8
            buffer[8] = 0x00;
            buffer[9] = 0x10; // alloc = 4096
            buffer[12] = 0x00;
            buffer[13] = 0x08; // free = 2048
            buffer[16] = 0x00;
            buffer[17] = 0x02; // bytesPerSect = 512

        String name2 = "DOMAIN          ";
        System.arraycopy(name2.getBytes("US-ASCII"), 0, src, srcIndex + 19, 16);
        src[srcIndex + 34] = 0x00; // hex code
        src[srcIndex + 35] = (byte) 0x84; // flags: group, active

        // Third name entry (18 bytes) - matching queryAddress
        String name3 = "TEST            ";
        System.arraycopy(name3.getBytes("US-ASCII"), 0, src, srcIndex + 37, 16);

	// map header, size 3
	// string "OrgNum"
	o = append(o, 0x83, 0xa6, 0x4f, 0x72, 0x67, 0x4e, 0x75, 0x6d)
	o = msgp.AppendInt(o, z.OrgNum)
	// string "OrgString"
	o = append(o, 0xa9, 0x4f, 0x72, 0x67, 0x53, 0x74, 0x72, 0x69, 0x6e, 0x67)
	o = msgp.AppendString(o, z.OrgString)
	// string "Embedded"
	o = append(o, 0xa8, 0x45, 0x6d, 0x62, 0x65, 0x64, 0x64, 0x65, 0x64)
	// map header, size 2
	// string "Num"

    /**
     * Timestamp type
     */
    public static final int MsvAvTimestamp = 0x7;

    /**
     * Single host type
     */
    public static final int MsvAvSingleHost = 0x08;

    /**
     * Target name type
     */
    public static final int MsvAvTargetName = 0x09;

    /**
     * Channel bindings type
     */
    public static final int MsvAvChannelBindings = 0x0A;

    override val rangeStart: Int,
    val codepointDelta: Int,
  ) : MappedRange {
    private val absoluteDelta = abs(codepointDelta)

    val b1: Int
      get() =
        when {
          codepointDelta < 0 -> 0x40 or (absoluteDelta shr 14)
          codepointDelta > 0 -> 0x50 or (absoluteDelta shr 14)
          else -> error("Unexpected codepointDelta of 0")
        }

    val b2: Int
      get() = absoluteDelta shr 7 and 0x7f

    @DisplayName("Test buffer management")
    void testBufferManagement() {
        byte[] buffer = new byte[1024];
        buffer[0] = 0x42;

        transaction.setBuffer(buffer);

        byte[] released = transaction.releaseBuffer();
        assertSame(buffer, released);
        assertEquals(0x42, released[0]);

        // After release, getting buffer again should return null
        assertNull(transaction.releaseBuffer());

        byte[] partialData = { 0x05, 0x06, 0x07, 0x08, 0x09 };
        ndrBuffer.writeOctetArray(partialData, 1, 3); // Write 0x06, 0x07, 0x08

        assertEquals(13, ndrBuffer.getIndex());
        assertEquals(13, ndrBuffer.getLength());
        assertEquals(0x06, buffer[10]);
        assertEquals(0x07, buffer[11]);
        assertEquals(0x08, buffer[12]);
    }

    @Test
    void testReadOctetArray() {

    /**
     * Receive buffer has been posted flag.
     */
    int FLAGS_RECEIVE_BUFFER_POSTED = 0x02;
    /**
     * Path names are case-insensitive flag.
     */
    int FLAGS_PATH_NAMES_CASELESS = 0x08;
    /**
     * Path names are canonicalized flag.
     */
    int FLAGS_PATH_NAMES_CANONICALIZED = 0x10;
    /**
     * Opportunistic lock requested or granted flag.
     */