NtlmChallenge nc = new NtlmChallenge(null, dc);

            assertNull(nc.challenge);
            assertSame(dc, nc.dc);
        }

        @Test
        @DisplayName("Constructor accepts null dc")
        void testConstructorAcceptsNullDc() {
            byte[] challenge = new byte[] { 1, 2, 3 };

            NtlmChallenge nc = new NtlmChallenge(challenge, null);

    @DisplayName("Test complete wire format writing")
    void testCompleteWireFormatWriting() {
        trans2QueryFSInfo = new Trans2QueryFSInformation(config, FileSystemInformation.FS_SIZE_INFO);

        byte[] setupBuffer = new byte[256];
        byte[] paramBuffer = new byte[256];
        byte[] dataBuffer = new byte[256];

        int setupWritten = trans2QueryFSInfo.writeSetupWireFormat(setupBuffer, 0);

     */
    protected Map<String, QueueHolder> sessionCache = new ConcurrentHashMap<>();

    /**
     * The number of URLs to fetch when polling.
     */
    protected int pollingFetchSize = 1000;

    /**
     * The maximum size of the crawling queue.
     */
    protected int maxCrawlingQueueSize = 100;

    /**
     * Creates a new instance of OpenSearchUrlQueueService.

        when(config.getNotifyBufferSize()).thenReturn(8192);
        Smb2ChangeNotifyRequest req = new Smb2ChangeNotifyRequest(config, fileId);
        byte[] buffer = new byte[512];
        req.writeBytesWireFormat(buffer, 0);

        byte[] readFileId = new byte[16];
        System.arraycopy(buffer, 8, readFileId, 0, 16);
        assertArrayEquals(fileId, readFileId);
    }

    @Test

    /**
     * Constructs a new popular words request.
     */
    public PopularWordsRequest() {
        // nothing
    }

    private String index = null;

    private int size = 10;

    private final List<String> tags = new ArrayList<>();

    private final List<String> roles = new ArrayList<>();

    private final List<String> fields = new ArrayList<>();

    @BeforeEach
    void setUp() {
        handler = new Handler();
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create handler with default constructor")
        void testDefaultConstructor() {
            // When
            Handler testHandler = new Handler();

            // Then
            assertNotNull(testHandler);

     */
    @Test
    void testConstructorWithMessageAndCause() {
        String message = "Test message with cause.";
        Throwable cause = new RuntimeException("Original cause.");
        DcerpcException exception = new DcerpcException(message, cause);

        assertEquals(0, exception.getErrorCode(), "Error code should be 0 for message and cause constructor.");

        short level = 1;

        // Act
        queryPolicy = new MsrpcQueryInformationPolicy(mockPolicyHandle, level, mockNdrObject);

        // Assert
        assertSame(mockPolicyHandle, queryPolicy.handle);
    }

    @Test
    void constructor_shouldSetLevelCorrectly() {
        // Arrange
        short level = 7;

        // Act
        queryPolicy = new MsrpcQueryInformationPolicy(mockPolicyHandle, level, mockNdrObject);

            if (mechanismListMIC != null) {
                fields.add(new DERTaggedObject(true, 3, new DEROctetString(mechanismListMIC)));
            }

            final ASN1EncodableVector ev = new ASN1EncodableVector();
            ev.add(SPNEGO_OID);
            ev.add(new DERTaggedObject(true, 0, new DERSequence(fields)));
            final ByteArrayOutputStream collector = new ByteArrayOutputStream();

        // Create a dummy rpc.unicode_string
        rpc.unicode_string dummyRus = new rpc.unicode_string();
        dummyRus.length = 10;
        dummyRus.maximum_length = 20;
        dummyRus.buffer = new short[] { 'H', 'e', 'l', 'l', 'o' };

        // Test with zterm = true
        UnicodeString unicodeStringTrue = new UnicodeString(dummyRus, true);