void testTidProperty() {
            assertEquals(0xFFFF, testBlock.getTid());
            testBlock.setTid(0x1234);
            assertEquals(0x1234, testBlock.getTid());
        }

        @Test
        @DisplayName("Test PID property")
        void testPidProperty() {
            testBlock.setPid(0x5678);
            assertEquals(0x5678, testBlock.getPid());
        }

        @Test

            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) {

			unlink(path, callback) { callback(enosys()); },
			utimes(path, atime, mtime, callback) { callback(enosys()); },
		};
	}

	if (!globalThis.process) {
		globalThis.process = {
			getuid() { return -1; },
			getgid() { return -1; },
			geteuid() { return -1; },
			getegid() { return -1; },
			getgroups() { throw enosys(); },
			pid: -1,
			ppid: -1,
			umask() { throw enosys(); },
			cwd() { throw enosys(); },

     */
    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;
    }

        }
    }

    @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() {

    class ConstructorTests {

        private Configuration mockConfig;

        @BeforeEach
        void setUp() {
            mockConfig = mock(Configuration.class);
            when(mockConfig.getPid()).thenReturn(12345);
        }

        @Test
        @DisplayName("Should initialize with correct command and MID")
        void testConstructorInitialization() throws Exception {
            // Given

        assertEquals(digest, response.getDigest());

        // Test mid methods
        long mid = 123456L;
        doNothing().when(response).setMid(mid);
        when(response.getMid()).thenReturn(mid);
        response.setMid(mid);
        assertEquals(mid, response.getMid());

        // Test command methods
        int command = 0x25;
        doNothing().when(response).setCommand(command);

            this.response = (TestResponse) msg;
        }

        @Override
        public long getMid() {
            return mid;
        }

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

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

        }

        @Override
        public void setResponse(CommonServerMessageBlockResponse msg) {
        }

        @Override
        public long getMid() {
            return 0;
        }

        @Override
        public void setMid(long mid) {
        }

        @Override
        public int getCommand() {
            return 0;
        }

        @Override

        }

        @Test
        @DisplayName("Should get and set MID")
        void testMidProperty() {
            assertEquals(0, testMessage.getMid());
            testMessage.setMid(12345L);
            assertEquals(12345L, testMessage.getMid());
        }

        @Test
        @DisplayName("Should get and set async ID")
        void testAsyncIdProperty() {