System.arraycopy(this.sbuf, 4, negoReqBuffer, 0, reqLen);
            }

            negotiatePeek();

            r = smb2neg.initResponse(getContext());
            final int respLen = r.decode(this.sbuf, 4);
            r.received();

            if (doPreauth) {
                negoRespBuffer = new byte[respLen];
                System.arraycopy(this.sbuf, 4, negoRespBuffer, 0, respLen);

                size += len;
                if (size == bufferSize) {
                    final char[] newBuf = new char[bufferSize + initialCapacity];
                    System.arraycopy(buf, 0, newBuf, 0, bufferSize);
                    buf = newBuf;
                    bufferSize += initialCapacity;
                }
            }
            return new String(buf, 0, size);

        SessionRequestPacket readPacket = new SessionRequestPacket(mockConfig);
        readPacket.length = written;

        byte[] readBuffer = new byte[256];
        System.arraycopy(buffer, 0, readBuffer, 10, written);

        int bytesRead = readPacket.readTrailerWireFormat(bais, readBuffer, 10);

        assertEquals(written, bytesRead);
    }

    @Test

    }

    @Test
    @DisplayName("Test decode operation")
    void testDecode() {
        byte[] buffer = new byte[1024];
        // Fill with basic SMB header structure
        System.arraycopy(new byte[] { (byte) 0xFF, 'S', 'M', 'B' }, 0, buffer, 0, 4);
        buffer[4] = 1; // wordCount
        buffer[7] = 0; // byteCount low
        buffer[8] = 0; // byteCount high

import static com.google.common.collect.testing.IteratorFeature.UNMODIFIABLE;
import static com.google.common.truth.Truth.assertThat;
import static java.lang.System.arraycopy;
import static java.util.Arrays.asList;
import static java.util.Collections.emptyList;
import static java.util.Collections.nCopies;
import static java.util.Collections.singletonList;

                byte[] b = invocation.getArgument(0);
                int off = invocation.getArgument(1);
                int l = invocation.getArgument(2);
                System.arraycopy(expectedOutput, 0, b, off, l);
                return l;
            });

            HMACT64 hmac = new HMACT64(TEST_KEY);
            int bytesWritten = hmac.engineDigest(buffer, 0, expectedOutput.length);

            dst[dstIndex] = (byte) 0x00;
            return 1;
        }

        // copy new scope in
        dst[dstIndex] = (byte) '.';
        dstIndex++;
        try {
            System.arraycopy(scope.getBytes(Name.OEM_ENCODING), 0, dst, dstIndex, scope.length());
        } catch (final UnsupportedEncodingException uee) {}
        dstIndex += scope.length();

        dst[dstIndex++] = (byte) 0x00;

        byte[] notificationData = createSingleNotificationBuffer("offset_test.txt", FileNotifyInformation.FILE_ACTION_MODIFIED);
        byte[] buffer = new byte[offset + notificationData.length];
        System.arraycopy(notificationData, 0, buffer, offset, notificationData.length);

        int result = response.readParametersWireFormat(buffer, offset, notificationData.length);

        assertTrue(result > 0);

            int fileNameLength = SMBUtil.readInt4(outputBuffer, offset + 8);

            // Extract filename
            byte[] fileNameBytes = new byte[fileNameLength];
            System.arraycopy(outputBuffer, offset + 12, fileNameBytes, 0, fileNameLength);
            String fileName = new String(fileNameBytes, StandardCharsets.UTF_16LE);

            // Convert action to our enum

        byte[] tempBuffer = new byte[50];
        original.encode(tempBuffer, 0);

        // Copy only the first 36 bytes (what decode reads)
        byte[] buffer = new byte[36];
        System.arraycopy(tempBuffer, 0, buffer, 0, 36);

        // Decode
        int bytesRead = fileBasicInfo.decode(buffer, 0, 36);

        // Verify
        assertEquals(36, bytesRead);