// type/class
    static final int NB_IN = 0x00200001;
    static final int NBSTAT_IN = 0x00210001;
    static final int NB = 0x0020;
    static final int NBSTAT = 0x0021;
    static final int IN = 0x0001;
    static final int A = 0x0001;
    static final int NS = 0x0002;
    static final int NULL = 0x000a;

    static final int HEADER_LENGTH = 12;

    // header field offsets
    static final int OPCODE_OFFSET = 2;

    // type/class
    static final int NB_IN = 0x00200001;
    static final int NBSTAT_IN = 0x00210001;
    static final int NB = 0x0020;
    static final int NBSTAT = 0x0021;
    static final int IN = 0x0001;
    static final int A = 0x0001;
    static final int NS = 0x0002;
    static final int NULL = 0x000a;

    static final int HEADER_LENGTH = 12;

    // header field offsets
    static final int OPCODE_OFFSET = 2;

    }
  }

  // 128 - [chars 0x0000 to 0x007f]
  private static final long ONE_BYTE_ROUNDTRIPPABLE_CHARACTERS = 0x007f - 0x0000 + 1;

  // 128
  private static final long EXPECTED_ONE_BYTE_ROUNDTRIPPABLE_COUNT =
      ONE_BYTE_ROUNDTRIPPABLE_CHARACTERS;

  // 1920 [chars 0x0080 to 0x07FF]
  private static final long TWO_BYTE_ROUNDTRIPPABLE_CHARACTERS = 0x07FF - 0x0080 + 1;

  // 18,304

                createDisposition = FILE_OPEN_IF;
            }
        } else {
            createDisposition = FILE_OPEN;
        }

        if ((createOptions & 0x0001) == 0) {
            this.createOptions = createOptions | 0x0040;
        } else {
            this.createOptions = createOptions;
        }
        impersonationLevel = 0x02; // As seen on NT :~)

        // informationLevel (2 bytes, LE) -> 0x0104
        assertEquals((byte) 0x04, dst[4]);
        assertEquals((byte) 0x01, dst[5]);

        // resumeKey (4 bytes, LE)
        assertEquals((byte) 0xEF, dst[6]);
        assertEquals((byte) 0xCD, dst[7]);
        assertEquals((byte) 0xAB, dst[8]);
        assertEquals((byte) 0x89, dst[9]);

        // flags (2 bytes, LE) -> 0x0000
        assertEquals((byte) 0x00, dst[10]);

        // Random but realistic GUID
        byte[] testGuid = { (byte) 0x01, (byte) 0x23, (byte) 0x45, (byte) 0x67, (byte) 0x89, (byte) 0xAB, (byte) 0xCD, (byte) 0xEF,
                (byte) 0xFE, (byte) 0xDC, (byte) 0xBA, (byte) 0x98, (byte) 0x76, (byte) 0x54, (byte) 0x32, (byte) 0x10 };

        // Security mode with signing required
        int testSecurityMode = 0x0003; // SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED

            assertEquals("Unknown dialect", exception.getMessage());
        }

        @ParameterizedTest
        @ValueSource(ints = { 0x0000, 0x0100, 0x0201, 0x0303, 0x0400, 0xFFFF })
        @DisplayName("Should throw exception for invalid dialects")
        void testConstructorInvalidDialects(int dialect) {
            IllegalArgumentException exception =

                this.createDisposition = FILE_OPEN_IF;
            }
        } else {
            this.createDisposition = FILE_OPEN;
        }

        if ((createOptions & 0x0001) == 0) {
            this.createOptions = createOptions | 0x0040;
        } else {
            this.createOptions = createOptions;
        }
        this.impersonationLevel = 0x02; // As seen on NT :~)

        // recordType (2 bytes)
        src[srcIndex + 2] = 0x00;
        src[srcIndex + 3] = 0x20; // NB (0x0020)
        // recordClass (2 bytes)
        src[srcIndex + 4] = 0x00;
        src[srcIndex + 5] = 0x01; // IN (0x0001)
        // ttl (4 bytes)
        src[srcIndex + 6] = 0x00;
        src[srcIndex + 7] = 0x00;
        src[srcIndex + 8] = 0x00;
        src[srcIndex + 9] = 0x00;
        // rDataLength (2 bytes)

        border: "1px solid rgba(82, 168, 236, 0.5)",
        "-webkit-box-shadow":
          "0 1px 1px 0px rgba(0, 0, 0, 0.1), 0 3px 2px 0px rgba(82, 168, 236, 0.2)",
        "-moz-box-shadow":
          "0 1px 1px 0px rgba(0, 0, 0, 0.1), 0 3px 2px 0px rgba(82, 168, 236, 0.2)",
        "box-shadow":
          "0 1px 1px 0px rgba(0, 0, 0, 0.1), 0 3px 2px 0px rgba(82, 168, 236, 0.2)",
        "background-color": "#fff",
        "z-index": "10000"
      },