tests := []testCase{
		// Test - 1 valid buffer with CRLF.
		{bytes.NewReader([]byte("\r\n")), nil},
		// Test - 2 invalid buffer with no CRLF.
		{bytes.NewReader([]byte("he")), errMalformedEncoding},
		// Test - 3 invalid buffer with more characters.
		{bytes.NewReader([]byte("he\r\n")), errMalformedEncoding},
		// Test - 4 smaller buffer than expected.
		{bytes.NewReader([]byte("h")), io.ErrUnexpectedEOF},
	}
	for i, tt := range tests {

        byte[] tokenArray = new byte[] { 1, 2, 3 };
        byte[] mic = new byte[] { 9, 9, 9 };
        NegTokenTarg original = new NegTokenTarg(NegTokenTarg.ACCEPT_COMPLETED, mech, tokenArray, mic);

        // Act – serialise and parse back
        byte[] bytes = original.toByteArray();
        NegTokenTarg roundTrip = new NegTokenTarg(bytes);

        assertEquals(1, response.setupCount);
    }

    // Helper method to write a 4-byte integer to a byte array.
    private void writeInt4(int val, byte[] dst, int dstIndex) {
        dst[dstIndex] = (byte) val;
        dst[dstIndex + 1] = (byte) (val >> 8);
        dst[dstIndex + 2] = (byte) (val >> 16);
        dst[dstIndex + 3] = (byte) (val >> 24);
    }

    }

    @Override
    public int decode(byte[] buffer, int bufferIndex, int len) throws SMBProtocolDecodingException {
        int start = bufferIndex;

        if (len < 52) {
            throw new SMBProtocolDecodingException("Lease V2 context data too short: " + len);
        }

        // Read lease V2 data (52 bytes)
        byte[] keyBytes = new byte[16];

        // Verify total data count (4 bytes at position 7)
        assertEquals(200, SMBUtil.readInt4(dst, 7));

        // Verify max parameter count (4 bytes at position 11)
        assertEquals(1024, SMBUtil.readInt4(dst, 11));

        // Verify max data count (4 bytes at position 15)
        assertEquals(2048, SMBUtil.readInt4(dst, 15));

        // Verify parameter count (4 bytes at position 19)

     * The header format is:
     * - Byte 0: Message type (0x00 for SESSION_MESSAGE)
     * - Byte 1: High bit of 17-bit length field
     * - Bytes 2-3: Lower 16 bits of length field
     */
    private static byte[] messageHeader(int length) {
        byte[] h = new byte[4];
        h[0] = (byte) SessionServicePacket.SESSION_MESSAGE;
        h[1] = (byte) ((length >> 16) & 0x01);
        h[2] = (byte) ((length >> 8) & 0xFF);

    assertFalse(sink.wasStreamClosed());

    out.write(new byte[] {1, 2, 3, 4});
    out.close();

    assertTrue(sink.wasStreamClosed());
    assertArrayEquals(new byte[] {1, 2, 3, 4}, sink.getBytes());
  }

  public void testWrite_bytes() throws IOException {
    assertArrayEquals(new byte[0], sink.getBytes());
    sink.write(bytes);

    assertTrue(sink.wasStreamOpened() && sink.wasStreamClosed());

    assertFalse(sink.wasStreamClosed());

    out.write(new byte[] {1, 2, 3, 4});
    out.close();

    assertTrue(sink.wasStreamClosed());
    assertArrayEquals(new byte[] {1, 2, 3, 4}, sink.getBytes());
  }

  public void testWrite_bytes() throws IOException {
    assertArrayEquals(new byte[0], sink.getBytes());
    sink.write(bytes);

    assertTrue(sink.wasStreamOpened() && sink.wasStreamClosed());

        void testLongFileId() {
            byte[] longFileId = new byte[32];
            new SecureRandom().nextBytes(longFileId);
            request.setFileId(longFileId);
            request.setData(new byte[10], 0, 10);

            byte[] buffer = new byte[256];
            int bytesWritten = request.writeBytesWireFormat(buffer, 0);

            // Should only copy first 16 bytes

        // instead of being hashed when it exceeds the block size.

        byte[] key = { (byte) 0x0b, (byte) 0x0b, (byte) 0x0b, (byte) 0x0b, (byte) 0x0b, (byte) 0x0b, (byte) 0x0b, (byte) 0x0b, (byte) 0x0b,
                (byte) 0x0b, (byte) 0x0b, (byte) 0x0b, (byte) 0x0b, (byte) 0x0b, (byte) 0x0b, (byte) 0x0b };
        byte[] data = "Hi There".getBytes();