// The implementation skips 4 reserved bytes without writing zeros
            // This is consistent with the actual implementation behavior
            // The reserved bytes remain as they were in the buffer
            for (int i = 0; i < 4; i++) {
                assertEquals((byte) 0xFF, buffer[startIndex + SOURCE_KEY_SIZE + 4 + i],
                        "Reserved byte at position " + i + " should remain unchanged");

Copyright ©2013 The gonum Authors. All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright

        }

        @Test
        @DisplayName("Should not modify reserved field bytes")
        void testReservedFieldNotModified() {
            lock = new Smb2Lock(999L, 888L, 0xFF);

            // Fill buffer with non-zero values
            Arrays.fill(buffer, (byte) 0xFF);

            lock.encode(buffer, 0);

            // Reserved field bytes are not modified by the encode method

        assertEquals(expected, actual, "size() must be 8-byte aligned");
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 5 })
    @DisplayName("writeBytesWireFormat writes StructureSize=4 and Reserved=0 at given offset")
    void writeBytesWireFormat_writesExpectedValuesAtOffset(int offset) {
        // Arrange
        Smb2LogoffRequest req = newRequest();
        byte[] buf = new byte[offset + 8]; // extra space for safety

        buffer[bodyStart + 2] = (byte) dataOffsetFromHeader;
        // Reserved
        buffer[bodyStart + 3] = 0;
        // Data length
        SMBUtil.writeInt4(dataLength, buffer, bodyStart + 4);
        // Data remaining
        SMBUtil.writeInt4(dataRemaining, buffer, bodyStart + 8);
        // Reserved2
        SMBUtil.writeInt4(0, buffer, bodyStart + 12);

Copyright(C) 2009-2016 CodeLibs Project. All Rights Reserved.

License: Apache-2.0
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
 .
 http://www.apache.org/licenses/LICENSE-2.0
 .
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,

= vendor/github.com/antlr4-go/antlr/v4 licensed under: =

Copyright (c) 2012-2023 The ANTLR Project. All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.

#
# The copyright for all class sources.
# This property is NOT map style.
# You should specify before your first generating.
#
#/*
# * Copyright(c) DBFlute TestCo.,TestLtd. All Rights Reserved.
# */

        assertEquals(4, buffer[offset] | (buffer[offset + 1] << 8), "Structure size should be 4");
        assertEquals(0, buffer[offset + 2], "Reserved bytes should be 0");
        assertEquals(0, buffer[offset + 3], "Reserved bytes should be 0");
    }

    @Test
    @DisplayName("Test readBytesWireFormat returns 0")
    void testReadBytesWireFormat() {
        // Given

        int bodyStart = headerStart + Smb2Constants.SMB2_HEADER_LENGTH;
        // Error response structure: size(2)=9, errorContextCount(1), reserved(1), bc(4), errorData(bc)
        SMBUtil.writeInt2(9, buf, bodyStart);
        buf[bodyStart + 2] = 0x02; // errorContextCount
        buf[bodyStart + 3] = 0x00; // reserved
        int bc = 4;
        SMBUtil.writeInt4(bc, buf, bodyStart + 4);
        byte[] err = new byte[] { 0x55, 0x66, 0x77, 0x01 };