assertTrue(SmbOperationException.ErrorCode.RESOURCE_LOCKED.isRetryable());
        assertTrue(SmbOperationException.ErrorCode.BUSY.isRetryable());
        assertTrue(SmbOperationException.ErrorCode.TRY_AGAIN.isRetryable());
        assertTrue(SmbOperationException.ErrorCode.SERVICE_UNAVAILABLE.isRetryable());

        // Non-retryable errors

            // Ignore
        }
    }

    private static String formatMessage(ErrorCode errorCode, String message) {
        if (message == null || message.isEmpty()) {
            return String.format("[%s] %s", errorCode.name(), errorCode.getDescription());
        }
        return String.format("[%s] %s: %s", errorCode.name(), errorCode.getDescription(), message);
    }

    private String extractOperationName() {

    }

    /**
     * @return the errorCode
     */
    @Override
    public final int getErrorCode() {
        return this.errorCode;
    }

    /**
     * Sets the error code for this message block
     * @param errorCode
     *            the errorCode to set
     */
    public final void setErrorCode(final int errorCode) {
        this.errorCode = errorCode;
    }

    /**

                throw new IOException("Invalid payload size: " + size);
            }
            final int errorCode = Encdec.dec_uint32le(BUF, 9) & 0xFFFFFFFF;
            if (resp.command == ServerMessageBlock.SMB_COM_READ_ANDX && (errorCode == 0 || errorCode == 0x80000005)) { // overflow indicator normal for pipe
                final SmbComReadAndXResponse r = (SmbComReadAndXResponse) resp;

            return false;
        }

        @Override
        public boolean isError() {
            return errorCode != 0;
        }

        @Override
        public void error() {
            this.errorCode = -1;
        }

        @Override
        public Long getExpiration() {
            return expiration;
        }

        @Override
        public void setExpiration(Long exp) {

        // Setter methods for testing
        public void setGrantedCredits(int grantedCredits) {
            this.grantedCredits = grantedCredits;
        }

        public void setErrorCode(int errorCode) {
            this.errorCode = errorCode;
        }

        public void setVerifyFailed(boolean verifyFailed) {
            this.verifyFailed = verifyFailed;
        }
    }

    @BeforeEach
    void setUp() {

    }

    @Test
    void testToString() {
        smb.command = ServerMessageBlock.SMB_COM_ECHO;
        smb.errorCode = 0;
        smb.mid = 1;
        String str = smb.toString();
        assertTrue(str.contains("command=SMB_COM_ECHO"));
        assertTrue(str.contains("errorCode=0"));
        assertTrue(str.contains("mid=1"));
    }

    @Test
    void testToStringUnknownCommand() {

        // Navigate through the inheritance hierarchy to find the errorCode field
        Class<?> currentClass = response.getClass();
        Field errorCodeField = null;

        while (currentClass != null && errorCodeField == null) {
            try {
                errorCodeField = currentClass.getDeclaredField("errorCode");

            super(config, command, subcommand);
        }

        // Expose errorCode setter for testing - access protected field directly
        public void setTestErrorCode(int code) {
            this.errorCode = code;
        }

        @Override
        protected int writeSetupWireFormat(byte[] dst, int dstIndex) {
            return setupWireFormatReturn;

            assertTrue(result.contains("command=SMB_COM_TREE_CONNECT_ANDX"));
            assertTrue(result.contains("errorCode="));
            // Should show non-zero error code
            assertTrue(result.contains("errorCode=0x00000001") || result.contains("errorCode=1"));
        }

        @Test
        @DisplayName("Test toString with all command types")
        void testToStringAllCommands() {