final MyClass2 dest = new MyClass2();
        dest.setAaa("aaa");
        dest.setBbb("bbb");
        dest.setDdd("ddd");

        BeanUtil.copyBeanToBean(src, dest);
        assertThat(dest.getAaa(), is("111"));
        assertThat(dest.getBbb(), is(nullValue()));
        assertThat(dest.getDdd(), is("ddd"));
    }

    /**
     * @throws Exception
     */
    @Test

            assertEquals(0x3456, testBlock.getFlags2());
            assertEquals(0x1234, testBlock.getTid());
            assertEquals(0x5678, testBlock.getPid());
            assertEquals(0x9ABC, testBlock.getUid());
            assertEquals(0xDEF0, testBlock.getMid());
        }

        @Test
        @DisplayName("Test decode with signature verification failure")

    void testHashVariousInputSizes(String input) {
        // Given
        byte[] data = input.getBytes();

        // When
        MessageDigest md4 = Crypto.getMD4();
        MessageDigest md5 = Crypto.getMD5();
        byte[] md4Hash = md4.digest(data);
        byte[] md5Hash = md5.digest(data);

        // Then
        assertNotNull(md4Hash);
        assertNotNull(md5Hash);

    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

        // Mock config methods needed for SMB1
        when(config.getPid()).thenReturn(1234);

        SmbComTreeConnectAndXResponse response = mock(SmbComTreeConnectAndXResponse.class);
        when(response.getService()).thenReturn("A:");
        when(response.isValidTid()).thenReturn(true);
        when(response.getTid()).thenReturn(1);
        when(session.send(any(), any())).thenReturn(response);

     */
    public final int getTid() {
        return this.tid;
    }

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

    /**
     * Gets the process identifier
     * @return the pid
     */
    public final int getPid() {
        return this.pid;
    }

     */
    public static MessageDigest getMD4() {
        try {
            return MessageDigest.getInstance("MD4", getProvider());
        } catch (final NoSuchAlgorithmException e) {
            throw new CIFSUnsupportedCryptoException(e);
        }
    }

    /**
     * Get an MD5 message digest instance.
     * @return MD5 digest instance
     */
    public static MessageDigest getMD5() {
        try {

            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) {

    public static byte[] getNTHash(final String password) {
        if (password == null) {
            throw new NullPointerException("Password parameter is required");
        }
        final MessageDigest md4 = Crypto.getMD4();
        md4.update(Strings.getUNIBytes(password));
        return md4.digest();
    }

    /**
     * Generates the NT password hash for the given password.

    @Mock
    private MessageDigest mockMd5;

    @BeforeEach
    void setUp() throws NoSuchAlgorithmException {
        // Mock Crypto.getMD5() to return our mockMd5 instance
        // This requires Mockito 3.4.0+ for MockedStatic
        // For simplicity, we'll assume Crypto.getMD5() is static and mock it.
        // If it's not static, we'd need to inject it or mock the class that provides it.