Security.addProvider(new BouncyCastleProvider());
        }
    }

    @BeforeEach
    void setup() {
        sessionKey = new byte[16];
        Arrays.fill(sessionKey, (byte) 0xAA);

        preauthIntegrityHash = new byte[64];
        Arrays.fill(preauthIntegrityHash, (byte) 0xBB);
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test

        Longs.toByteArray(0x1213141516171819L));
    assertByteArrayEquals(
        new byte[] {
          (byte) 0xFF, (byte) 0xEE, (byte) 0xDD, (byte) 0xCC,
          (byte) 0xBB, (byte) 0xAA, (byte) 0x99, (byte) 0x88
        },
        Longs.toByteArray(0xFFEEDDCCBBAA9988L));
  }

  public void testFromByteArray() {
    assertThat(

        // Test with alternating pattern
        byte[] alternatingFileId = new byte[16];
        for (int i = 0; i < 16; i++) {
            alternatingFileId[i] = (byte) (i % 2 == 0 ? 0xAA : 0x55);
        }
        Smb2CloseRequest alternatingRequest = new Smb2CloseRequest(mockConfig, alternatingFileId, testFileName);
        testFileIdInRequest(alternatingRequest, alternatingFileId);
    }

	if err != nil {
		return
	}
	err = en.WriteInt64(z.SinceUptime.Bytes)
	if err != nil {
		err = msgp.WrapError(err, "SinceUptime", "Bytes")
		return
	}
	// write "LastMinute"
	err = en.Append(0xaa, 0x4c, 0x61, 0x73, 0x74, 0x4d, 0x69, 0x6e, 0x75, 0x74, 0x65)
	if err != nil {
		return
	}
	err = z.LastMinute.EncodeMsg(en)
	if err != nil {
		err = msgp.WrapError(err, "LastMinute")
		return
	}

                patternKey[i] = (byte) ((i % 2 == 0) ? 0xAA : 0x55);
            }
            SrvCopychunkCopy copy = new SrvCopychunkCopy(patternKey);
            byte[] buffer = new byte[100];

            // When
            copy.encode(buffer, 0);

            // Then
            for (int i = 0; i < SOURCE_KEY_SIZE; i++) {
                byte expected = (byte) ((i % 2 == 0) ? 0xAA : 0x55);

        // Test with alternating pattern
        byte[] alternatingFileId = new byte[16];
        for (int i = 0; i < 16; i++) {
            alternatingFileId[i] = (byte) (i % 2 == 0 ? 0xAA : 0x55);
        }
        Smb2FlushRequest alternatingRequest = new Smb2FlushRequest(mockConfig, alternatingFileId);
        testFileIdInRequest(alternatingRequest, alternatingFileId);
    }

        int readDataAvailable = 256;
        int numberOfMessages = 5;
        int messageLength = 128;
        byte[] testData = { (byte) 0xFF, (byte) 0xEE, (byte) 0xDD, (byte) 0xCC, (byte) 0xBB, (byte) 0xAA, (byte) 0x99, (byte) 0x88 };

        // Write values to buffer at offset
        SMBUtil.writeInt4(namedPipeState, buffer, bufferIndex);
        SMBUtil.writeInt4(readDataAvailable, buffer, bufferIndex + 4);

			}
		}
	}
	return
}

// EncodeMsg implements msgp.Encodable
func (z *ChecksumInfo) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 3
	// write "PartNumber"
	err = en.Append(0x83, 0xaa, 0x50, 0x61, 0x72, 0x74, 0x4e, 0x75, 0x6d, 0x62, 0x65, 0x72)
	if err != nil {
		return
	}
	err = en.WriteInt(z.PartNumber)
	if err != nil {
		err = msgp.WrapError(err, "PartNumber")
		return
	}

            int flags = NegTokenInit.DELEGATION | NegTokenInit.INTEGRITY;
            byte[] mechToken = new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05 };
            byte[] mic = new byte[] { (byte) 0xAA, (byte) 0xBB, (byte) 0xCC };

            NegTokenInit original = new NegTokenInit(mechs, flags, mechToken, mic);
            byte[] firstEncoding = original.toByteArray();

        Arrays.fill(allOnes, (byte) 0xFF);
        byte[] alternating = new byte[16];
        for (int i = 0; i < alternating.length; i++) {
            alternating[i] = (byte) (i % 2 == 0 ? 0xAA : 0x55);
        }

        RequestWithFileId request = new Smb2CloseRequest(mockConfig, emptyFileId);

        // All patterns should be accepted