testBlock.setFlags2(0x3456);
            testBlock.setSignSeq(42);
            testBlock.setTid(0x1234);
            testBlock.setPid(0x5678);
            testBlock.setUid(0x9ABC);
            testBlock.setMid(0xDEF0);
            testBlock.received();

            String result = testBlock.toString();

            assertNotNull(result);

        }
    }

    @Test
    @DisplayName("Test setUid method")
    void testSetUid() {
        // Given
        int uid = 1000;
        doNothing().when(messageBlock).setUid(uid);

        // When
        messageBlock.setUid(uid);

        // Then
        verify(messageBlock).setUid(uid);
    }

    @Test
    @DisplayName("Test setUid with boundary values")
    void testSetUidWithBoundaryValues() {

        /**
         * @return BigDecimal
         */
        public BigDecimal getGgg() {
            return ggg_;
        }

        /**
         * @param ggg
         */
        public void setGgg(final BigDecimal ggg) {
            ggg_ = ggg;
        }

        /**
         * @return Timestamp
         */
        public Timestamp getHhh() {
            return hhh_;
        }

        @Override
        public void setMid(long mid) {
            this.mid = mid;
        }

        @Override
        public int getCommand() {
            return command;
        }

        @Override
        public void setCommand(int command) {
            this.command = command;
        }

        @Override
        public void setUid(int uid) {
            // No-op for test

            this.andx.setErrorCode(getErrorCode());
            this.andx.setFlags(getFlags());
            this.andx.setFlags2(getFlags2());
            this.andx.setTid(getTid());
            this.andx.setPid(getPid());
            this.andx.setUid(getUid());
            this.andx.setMid(getMid());
            this.andx.setUseUnicode(this.isUseUnicode());

            if (this.andx instanceof AndXServerMessageBlock) {

            testRequest.setRequestCredits(credits);
            assertEquals(credits, testRequest.getCredit());
        }

        @Test
        @DisplayName("setTid should set tree ID")
        void testSetTid() {
            int tid = 12345;
            testRequest.setTid(tid);
            assertEquals(tid, testRequest.getTreeId());
        }
    }

    @Nested
    @DisplayName("Async Operation Tests")

        response.setCommand(command);
        assertEquals(command, response.getCommand());

        // Test other setter methods
        doNothing().when(response).setUid(1000);
        response.setUid(1000);
        verify(response).setUid(1000);

        doNothing().when(response).setExtendedSecurity(true);
        response.setExtendedSecurity(true);
        verify(response).setExtendedSecurity(true);

     */
    public final void setPid(final int pid) {
        this.pid = pid;
    }

    /**
     * Gets the user identifier
     * @return the uid
     */
    public final int getUid() {
        return this.uid;
    }

    /**
     * @param uid
     *            the uid to set
     */
    @Override
    public final void setUid(final int uid) {
        this.uid = uid;
    }

        void testSetExtendedSecurity() {
            testMessage.setExtendedSecurity(true);
            testMessage.setExtendedSecurity(false);
            // Method is empty, just ensure no exception
        }

        @Test
        @DisplayName("Should ignore UID setting")
        void testSetUid() {
            testMessage.setUid(123);

	},
	{
		Name:   "bar",
		Data:   nil, // large data set in the test
		Method: Deflate,
		Mode:   0644,
	},
	{
		Name:   "setuid",
		Data:   []byte("setuid file"),
		Method: Deflate,
		Mode:   0755 | fs.ModeSetuid,
	},
	{
		Name:   "setgid",
		Data:   []byte("setgid file"),
		Method: Deflate,
		Mode:   0755 | fs.ModeSetgid,
	},
	{
		Name:   "symlink",
		Data:   []byte("../link/target"),