}

    @Test
    void testReadULong() {
        // Test readULong with various values
        byte[] data = new byte[8];
        ByteBuffer buffer = ByteBuffer.wrap(data).order(ByteOrder.LITTLE_ENDIAN);

        // Test with a positive value
        buffer.putInt(0, 0x12345678);
        assertEquals(0x12345678, NtlmMessage.readULong(data, 0), "Should read positive ULong correctly.");

        // Test with zero

    }

    // ---------------- Static read tests -----------------
    @Test
    @DisplayName("readULong correctly interprets little endian")
    void testReadULong() {
        byte[] a = new byte[] { (byte) 0x01, (byte) 0x02, (byte) 0x03, (byte) 0x04 };
        int result = NtlmMessage.readULong(a, 0);
        assertEquals(0x04030201, result, "ULong should be little‑endian");
    }

    @Test

        }
        pos += 8;

        if (readULong(input, pos) != NTLMSSP_TYPE2) {
            throw new IOException("Not a Type 2 message.");
        }
        pos += 4;

        final int flags = readULong(input, pos + 8);
        setFlags(flags);

        final byte[] targetName = readSecurityBuffer(input, pos);
        final int targetNameOff = readULong(input, pos + 4);
        if (targetName.length != 0) {

                throw new IOException("Not an NTLMSSP message.");
            }
        }
        if (readULong(material, 8) != 1) {
            throw new IOException("Not a Type 1 message.");
        }
        final int flags = readULong(material, 12);
        String suppliedDomain = null;
        if ((flags & NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED) != 0) {

            }
        }
        if (readULong(material, 8) != 3) {
            throw new IOException("Not a Type 3 message.");
        }
        final byte[] lmResponse = readSecurityBuffer(material, 12);
        final int lmResponseOffset = readULong(material, 16);
        final byte[] ntResponse = readSecurityBuffer(material, 20);
        final int ntResponseOffset = readULong(material, 24);

     */
    public void setFlag(final int flag, final boolean value) {
        setFlags(value ? getFlags() | flag : getFlags() & (0xffffffff ^ flag));
    }

    static int readULong(final byte[] src, final int index) {
        return src[index] & 0xff | (src[index + 1] & 0xff) << 8 | (src[index + 2] & 0xff) << 16 | (src[index + 3] & 0xff) << 24;
    }

        final int ntResponseOffset = readULong(material, pos + 4);
        pos += 8;

        final byte[] domainBytes = readSecurityBuffer(material, pos);
        final int domainOffset = readULong(material, pos + 4);
        pos += 8;

        final byte[] userBytes = readSecurityBuffer(material, pos);
        final int userOffset = readULong(material, pos + 4);
        pos += 8;

     */
    public void setFlag(final int flag, final boolean value) {
        setFlags(value ? getFlags() | flag : getFlags() & (0xffffffff ^ flag));
    }

    static int readULong(final byte[] src, final int index) {
        return src[index] & 0xff | (src[index + 1] & 0xff) << 8 | (src[index + 2] & 0xff) << 16 | (src[index + 3] & 0xff) << 24;
    }

                throw new IOException("Not an NTLMSSP message.");
            }
        }
        if (readULong(material, 8) != 2) {
            throw new IOException("Not a Type 2 message.");
        }
        final int flags = readULong(material, 20);
        setFlags(flags);
        String target = null;
        byte[] bytes = readSecurityBuffer(material, 12);

                throw new IOException("Not an NTLMSSP message.");
            }
        }
        pos += 8;

        if (readULong(material, pos) != NTLMSSP_TYPE1) {
            throw new IOException("Not a Type 1 message.");
        }
        pos += 4;

        final int flags = readULong(material, pos);
        setFlags(flags);
        pos += 4;

        if ((flags & NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED) != 0) {