* element content or {@link #xmlAttributeEscaper} in attribute values.
   *
   * <p>This escaper substitutes {@code 0xFFFD} for non-whitespace control characters and the
   * character values {@code 0xFFFE} and {@code 0xFFFF} which are not permitted in XML. For more
   * detail see section <a href="http://www.w3.org/TR/2008/REC-xml-20081126/#charsets">2.2</a> of
   * the XML specification.
   *

      }
    }

    // Test that 0xFFFE and 0xFFFF are replaced with 0xFFFD
    assertEscaping(xmlEscaper, "\uFFFD", '\uFFFE');
    assertEscaping(xmlEscaper, "\uFFFD", '\uFFFF');

    assertEquals(
        "0xFFFE is forbidden and should be replaced during escaping",
        "[\uFFFD]",
        xmlEscaper.escape("[\ufffe]"));
    assertEquals(
        "0xFFFF is forbidden and should be replaced during escaping",

    void testNegativeFidValue() {
        int fid = -1; // Will be treated as 0xFFFF in unsigned 16-bit
        notifyChange = new NtTransNotifyChange(mockConfig, fid, FILE_NOTIFY_CHANGE_FILE_NAME, false);
        byte[] dst = new byte[10];

        notifyChange.writeSetupWireFormat(dst, 0);

        // Should write as 0xFFFF (65535 in unsigned)
        assertEquals(0xFFFF, SMBUtil.readInt2(dst, 4));
    }

    @Test

        int fid = -1; // Will be treated as 0xFFFF in unsigned 16-bit
        querySecurityDesc = new NtTransQuerySecurityDesc(mockConfig, fid, OWNER_SECURITY_INFORMATION);
        byte[] dst = new byte[10];

        querySecurityDesc.writeParametersWireFormat(dst, 0);

        // Should write as 0xFFFF (65535 in unsigned)
        assertEquals(0xFFFF, SMBUtil.readInt2(dst, 0));
    }

    @Test

      <match value="0xfff2" type="string" offset="0"/> <!-- V2, L3, CRC -->
      <match value="0xfff3" type="string" offset="0"/> <!-- V2, L3      -->
      <match value="0xfff4" type="string" offset="0"/> <!-- V2, L2, CRC -->
      <match value="0xfff5" type="string" offset="0"/> <!-- V2, L2      -->
      <match value="0xfff6" type="string" offset="0"/> <!-- V2, L1, CRC -->

        assertEquals((byte) ((value >> 8) & 0xFF), dst[0]);
        assertEquals((byte) (value & 0xFF), dst[1]);
    }

    @Test
    @DisplayName("writeInt2 with offset should write at correct position")
    void testWriteInt2WithOffset() {
        byte[] dst = new byte[10];
        dst[2] = (byte) 0xFF; // Mark position
        dst[3] = (byte) 0xFF;

        SessionServicePacket.writeInt2(0xABCD, dst, 4);

            }

            // there seems to be a bug with some servers that causes corruption if using signatures + CAP_LARGE_WRITE
            if (th.hasCapability(SmbConstants.CAP_LARGE_WRITEX) && !th.areSignaturesActive()) {
                this.writeSize = Math.min(th.getConfig().getSendBufferSize() - 70, 0xFFFF - 70);
            }

            this.fp = 0L;

        assertEquals(0xFFFF, pdis.readUnsignedShort());
    }

    @Test
    public void testReadUnsignedInt() throws IOException {
        // Little-endian 0xFFFFFFFF -> 0xFF 0xFF 0xFF 0xFF
        byte[] data = new byte[] { (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF };
        PacDataInputStream pdis = createInputStream(data);
        assertEquals(0xFFFFFFFFL, pdis.readUnsignedInt());
    }

    @Test

        }

        @Test
        @DisplayName("Should handle ciphers with maximum value")
        void testMaximumCipherValues() throws SMBProtocolDecodingException {
            int[] ciphers = { 0xFFFF, 0x0000, 0x7FFF };
            EncryptionNegotiateContext originalContext = new EncryptionNegotiateContext(mockConfig, ciphers);

            int encoded = originalContext.encode(buffer, 0);

        buffer.putShort(0, (short) 0xFFFF);
        assertEquals(0xFFFF, NtlmMessage.readUShort(data, 0), "Should read max UShort correctly.");

        // Test with a negative short (should be interpreted as unsigned positive)
        buffer.putShort(0, (short) -1); // -1 is 0xFFFF
        assertEquals(0xFFFF, NtlmMessage.readUShort(data, 0), "Should interpret -1 as unsigned max UShort.");
    }