{ 10, 90 }, // 10 byte offset, 90 bytes
                { 50, 50 }, // 50 byte offset, 50 bytes
                { 0, 0 }, // Empty buffer
                { 100, 100 } // Large values
        };

        for (int[] testCase : testCases) {
            // Arrange
            byte[] buffer = new byte[200];
            int bufferIndex = testCase[0];

	a := make([][]byte, len(spans))
	for i, span := range spans {
		a[i] = s[span.start:span.end:span.end]
	}

	return a
}

// Join concatenates the elements of s to create a new byte slice. The separator
// sep is placed between elements in the resulting slice.
func Join(s [][]byte, sep []byte) []byte {
	if len(s) == 0 {
		return []byte{}
	}
	if len(s) == 1 {

 * Represents an NTLMSSP Type-3 message.
 */
public class Type3Message extends NtlmMessage {

    private byte[] lmResponse;
    private byte[] ntResponse;
    private String domain;
    private String user;
    private String workstation;
    private byte[] masterKey = null;
    private byte[] sessionKey = null;
    private byte[] mic = null;
    private boolean micRequired;

    /**

        macAddressField.setAccessible(true);
        byte[] macAddress = (byte[]) macAddressField.get(response);
        assertNotNull(macAddress);
        assertEquals(6, macAddress.length);
    }

    @Test
    void writeBodyWireFormat_shouldReturnZero() {
        byte[] dst = new byte[100];
        int result = response.writeBodyWireFormat(dst, 10);
        assertEquals(0, result);
    }

        assertEquals((byte) 0x56, dst[2]);
        assertEquals((byte) 0x78, dst[3]);
    }

    @Test
    void testReadInt2() {
        byte[] src = { (byte) 0x12, (byte) 0x34 };
        assertEquals(0x1234, NameServicePacket.readInt2(src, 0));
    }

    @Test
    void testReadInt4() {
        byte[] src = { (byte) 0x12, (byte) 0x34, (byte) 0x56, (byte) 0x78 };
        assertEquals(0x12345678, NameServicePacket.readInt4(src, 0));
    }

        // so readBytesWireFormat() is invoked and must delegate back to readErrorResponse() when it sees size=9.
        byte[] header = buildHeader(NtStatus.NT_STATUS_INVALID_PARAMETER);
        byte[] body = buildErrorBody(2, 3, new byte[] { (byte) 0xAA, (byte) 0xBB, (byte) 0xCC });
        byte[] packet = new byte[header.length + body.length];
        System.arraycopy(header, 0, packet, 0, header.length);

            protected int readHeaderWireFormat(byte[] buffer, int bufferIndex) {
                return 33;
            }
        };
        testBlock.configureForTest(true, 2);
        testBlock.setCommand((byte) ServerMessageBlock.SMB_COM_NT_CREATE_ANDX);

        byte[] buffer = new byte[1024];
        buffer[33] = 34; // wordCount for extended response
        buffer[34] = (byte) 0xFF; // andxCommand

        for (int i = 2; i < 6; i++) {
            assertEquals((byte) 0x00, dst[i], "Reserved byte at index " + i + " should be 0.");
        }
        // Check filename
        byte[] filenameBytes = filename.getBytes();
        for (int i = 0; i < filenameBytes.length; i++) {
            assertEquals(filenameBytes[i], dst[6 + i], "Filename byte at index " + i + " should match.");
        }
        // Check null terminator

        if (dataSize > outputBuffer.length) {
            return; // Skip sizes larger than buffer
        }

        byte[] sourceData = new byte[dataSize];
        for (int i = 0; i < dataSize; i++) {
            sourceData[i] = (byte) (i % 256);
        }

        byte[] buffer = new byte[dataSize + 50];
        System.arraycopy(sourceData, 0, buffer, 10, dataSize);

     * 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);