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);

     */
    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 {

    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.

        item1.id = 100L;
        item2.id = 200L;

        assertEquals(100L, item1.getId());
        assertEquals(200L, item2.getId());

        // Verify they don't affect each other
        item1.id = 300L;
        assertEquals(300L, item1.getId());
        assertEquals(200L, item2.getId());
    }

    public void test_constructor() {
        // Test that constructor creates a valid instance

        assertEquals(mockSid, pacGroup.getId(), "The SID should be correctly set in the constructor.");
        assertEquals(attributes, pacGroup.getAttributes(), "The attributes should be correctly set in the constructor.");
    }

    /**
     * Test method for {@link jcifs.pac.PacGroup#getId()}.
     */
    @Test
    void testGetId() {
        // Test the getId method

        assertEquals(sidMock, pacSidAttributes.getId(), "The SID should match the one provided in the constructor.");
        assertEquals(attributes, pacSidAttributes.getAttributes(), "The attributes should match the ones provided in the constructor.");
    }

    /**
     * Test method for {@link jcifs.pac.PacSidAttributes#getId()}.
     */
    @Test
    void testGetId() {
        // Test the getId method

    public void test_getId() {
        // Test getId method inherited from DictionaryItem
        ProtwordsItem item1 = new ProtwordsItem(0, "word");
        assertEquals(0, item1.getId());

        ProtwordsItem item2 = new ProtwordsItem(999, "word");
        assertEquals(999, item2.getId());

        ProtwordsItem item3 = new ProtwordsItem(-1, "word");
        assertEquals(-1, item3.getId());
    }

    public void test_getId() {
        // Test getId method from parent class
        StopwordsItem item1 = new StopwordsItem(0, "word1");
        assertEquals(0, item1.getId());

        StopwordsItem item2 = new StopwordsItem(999, "word2");
        assertEquals(999, item2.getId());

        StopwordsItem item3 = new StopwordsItem(-1, "word3");
        assertEquals(-1, item3.getId());
    }

        assertFalse(dfsImpl.isTrustedDomain(mockContext, "anydomain.com"));
    }

    // Tests for getDc
    @Test
    void testGetDc_DfsDisabled() throws SmbAuthException {
        // Scenario: DFS is disabled.
        when(mockConfig.isDfsDisabled()).thenReturn(true);
        assertNull(dfsImpl.getDc(mockContext, "anydomain.com"));
    }

    @Test
    void testGetDc_ConnectionFails() throws SmbAuthException {