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

    }

    @Test
    void testReadSecurityBuffer() {
        // Test readSecurityBuffer
        byte[] data = new byte[20];
        byte[] content = "Hello".getBytes();

        // Simulate a security buffer structure: length (2 bytes), length (2 bytes), offset (4 bytes)
        // Length = 5, Offset = 8

                { 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 {

        // 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);

        // Test interface method
        byte[] newFileId = new byte[16];
        Arrays.fill(newFileId, (byte) 0x42);

        ((jcifs.internal.smb2.RequestWithFileId) request).setFileId(newFileId);

        // Verify it was set correctly by writing to wire format
        byte[] buffer = new byte[256];
        request.writeBytesWireFormat(buffer, 0);

        byte[] copiedFileId = new byte[16];

  public void testBytes() {
    Sink sink = new Sink(4); // byte order insignificant here
    byte[] expected = {1, 2, 3, 4, 5, 6, 7, 8};
    sink.putByte((byte) 1);
    sink.putBytes(new byte[] {2, 3, 4, 5, 6});
    sink.putByte((byte) 7);
    sink.putBytes(new byte[] {});
    sink.putBytes(new byte[] {8});
    HashCode unused = sink.hash();
    sink.assertInvariants(8);
    sink.assertBytes(expected);

        private int dataWireFormatReturn = 0;
        private byte[] setupBuffer;
        private byte[] parametersBuffer;
        private byte[] dataBuffer;

        public TestSmbComTransaction(Configuration config, byte command, byte subCommand) {
            super(config, command, subCommand);
        }

        @Override
        protected int writeSetupWireFormat(byte[] dst, int dstIndex) {

    Arrays.fill(b, (byte) 0);
    ByteStreams.readFully(newTestStream(10), b, 0, 0);
    assertThat(b).isEqualTo(new byte[10]);

    Arrays.fill(b, (byte) 0);
    ByteStreams.readFully(newTestStream(10), b, 0, 10);
    assertThat(b).isEqualTo(newPreFilledByteArray(10));

    Arrays.fill(b, (byte) 0);
    ByteStreams.readFully(newTestStream(10), b, 0, 5);

            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