abstract class NameServicePacket {

    // opcode
    static final int QUERY = 0;
    static final int WACK = 7;

    // rcode
    static final int FMT_ERR = 0x1;
    static final int SRV_ERR = 0x2;
    static final int IMP_ERR = 0x4;
    static final int RFS_ERR = 0x5;
    static final int ACT_ERR = 0x6;
    static final int CFT_ERR = 0x7;

    // type/class
    static final int NB_IN = 0x00200001;

	_ = zb0001Mask
	if z.Prefix == "" {
		zb0001Len--
		zb0001Mask |= 0x2
	}
	// variable map header, size zb0001Len
	o = append(o, 0x80|uint8(zb0001Len))

	// skip if no fields are to be emitted
	if zb0001Len != 0 {
		// string "bk"
		o = append(o, 0xa2, 0x62, 0x6b)
		o = msgp.AppendString(o, z.Bucket)
		if (zb0001Mask & 0x2) == 0 { // if not omitted
			// string "pr"
			o = append(o, 0xa2, 0x70, 0x72)

        stubValidTree(5L, true, true);

        byte[] fileId = new byte[] { 0x0A, 0x0B };
        SmbFileHandleImpl h = new SmbFileHandleImpl(cfg, fileId, tree, "//server/share/path", 0x1, 0x2, 0x3, 0x4, 123L);

        h.close(777L);

        // Verify SMB2 close path
        verify(tree, times(1)).send(isA(Smb2CloseRequest.class), eq(RequestParam.NO_RETRY));
        // Tree is always released in finally

    }

    @Test
    void testGetFlag() {
        // Test getting individual flags
        message.setFlags(0b1010); // Set flags: 8 (0x8) and 2 (0x2)
        assertTrue(message.getFlag(0b1000), "Flag 0b1000 should be set.");
        assertTrue(message.getFlag(0b0010), "Flag 0b0010 should be set.");
        assertFalse(message.getFlag(0b0100), "Flag 0b0100 should not be set.");

				var za0002 string
				za0002, err = dc.ReadString()
				if err != nil {
					err = msgp.WrapError(err, "Checksums", za0001)
					return
				}
				z.Checksums[za0001] = za0002
			}
			zb0001Mask |= 0x2
		case "err":
			z.Error, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Error")
				return
			}
			zb0001Mask |= 0x4
		default:
			err = dc.Skip()
			if err != nil {

      0x1ff9,
      0x15,
      0xf8,
      0x7fa,
      0x3fa,
      0x3fb,
      0xf9,
      0x7fb,
      0xfa,
      0x16,
      0x17,
      0x18,
      0x0,
      0x1,
      0x2,
      0x19,
      0x1a,
      0x1b,
      0x1c,
      0x1d,
      0x1e,
      0x1f,
      0x5c,
      0xfb,
      0x7ffc,
      0x20,
      0xffb,
      0x3fc,
      0x1ffa,

        assertEquals(0x1, Smb2ChangeNotifyRequest.SMB2_WATCH_TREE);

        // Verify completion filter constants
        assertEquals(0x1, Smb2ChangeNotifyRequest.FILE_NOTIFY_CHANGE_FILE_NAME);
        assertEquals(0x2, Smb2ChangeNotifyRequest.FILE_NOTIFY_CHANGE_DIR_NAME);
        assertEquals(0x4, Smb2ChangeNotifyRequest.FILE_NOTIFY_CHANGE_ATTRIBUTES);
        assertEquals(0x8, Smb2ChangeNotifyRequest.FILE_NOTIFY_CHANGE_SIZE);

    }
  }

  fun nonPrintableAscii(encoding: Encoding) =
    apply {
      encodings[0x0] = encoding // Null character
      encodings[0x1] = encoding // Start of Header
      encodings[0x2] = encoding // Start of Text
      encodings[0x3] = encoding // End of Text
      encodings[0x4] = encoding // End of Transmission
      encodings[0x5] = encoding // Enquiry
      encodings[0x6] = encoding // Acknowledgment

        }

        @Test
        @DisplayName("Should have correct SMB2_CHANNEL_RDMA_V1_INVALIDATE value")
        void testChannelRdmaV1Invalidate() {
            assertEquals(0x2, Smb2ReadRequest.SMB2_CHANNEL_RDMA_V1_INVALIDATE);
        }
    }

    @Nested
    @DisplayName("FileId Tests")
    class FileIdTests {

        @Test

                dr.setDomain(targetDomain);

                if ((dfsResp.getTflags() & 0x2) == 0 && (dr.getFlags() & 0x2) == 0) {
                    log.debug("Non-root referral is not final " + dfsResp);
                    dr.intermediate();
                }

                if ((cur != null)) {