class SrvCopychunkTest {

    private static final int EXPECTED_SIZE = 24;
    private static final int RESERVED_BYTES = 4;

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

        @Test
        @DisplayName("Should create instance with valid parameters")
        void testConstructorWithValidParameters() {
            // Given
            long sourceOffset = 1024L;

    private byte[] buffer;

    @BeforeEach
    void setUp() {
        buffer = new byte[BUFFER_SIZE];
    }

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

        @Test
        @DisplayName("Should create instance with Configuration and ciphers")
        void testConstructorWithConfigAndCiphers() {

    void setUp() {
        MockitoAnnotations.openMocks(this);
        testRequest = new TestServerMessageBlock2Request(mockConfig);
    }

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

        @Test
        @DisplayName("Should create request with configuration only")
        void testConstructorWithConfig() {

    void setUp() {
        MockitoAnnotations.openMocks(this);
        response = new Trans2GetDfsReferralResponse(mockConfig);
    }

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

        @Test
        @DisplayName("Should initialize with correct configuration")
        void testConstructorInitialization() {

        lenient().when(handle.getMaxRecv()).thenReturn(4280);

        return handle;
    }

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

        @Test
        @DisplayName("Should throw DcerpcException for invalid URL format")
        void testConstructor_InvalidUrl() {
            String invalidUrl = "invalid:server";

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        echoResponse = new Smb2EchoResponse(mockConfig);
    }

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

        @Test
        @DisplayName("Should create response with configuration")
        void testConstructor() {
            Smb2EchoResponse response = new Smb2EchoResponse(mockConfig);

        new SecureRandom().nextBytes(testFileId);
        request = new Smb2WriteRequest(mockConfig, testFileId);
    }

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

        @Test
        @DisplayName("Should create request with configuration and file ID")
        void testConstructor() {
            Smb2WriteRequest writeRequest = new Smb2WriteRequest(mockConfig, testFileId);

    void setUp() {
        MockitoAnnotations.openMocks(this);
        buffer = new DfsReferralResponseBuffer();
    }

    @Nested
    @DisplayName("Constructor and Initial State Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should initialize with null referrals")
        void testInitialState() {
            assertNull(buffer.getReferrals());
            assertEquals(0, buffer.getPathConsumed());

            assertThrows(DcerpcException.class, () -> DcerpcHandle.parseBinding("ncacn_np:server"));
        }
    }

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

        @Test
        @DisplayName("Should create handle with context only")
        void testConstructorWithContextOnly() {
            // When: Creating handle with context only

    void setUp() {
        mockConfig = mock(Configuration.class);
        notification = new Smb2OplockBreakNotification(mockConfig);
    }

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

        @Test
        @DisplayName("Should create notification with configuration")
        void testConstructorWithConfiguration() {