@Mock
    private CommonServerMessageBlockRequest splitRequest;

    @Mock
    private CommonServerMessageBlockRequest cancelRequest;

    @BeforeEach
    void setUp() {
        // Reset mocks before each test
        reset(request, nextRequest, splitRequest, cancelRequest);
    }

    @Test
    @DisplayName("Test isResponseAsync returns true when response is async")

 */
@DisplayName("EmptyIterator Tests")
class EmptyIteratorTest extends BaseTest {

    private EmptyIterator emptyIterator;

    @BeforeEach
    void setUp() {
        emptyIterator = new EmptyIterator();
    }

    @Test
    @DisplayName("EmptyIterator should implement CloseableIterator interface")
    void testInterfaceImplementation() {
        // Then

class Smb2FlushRequestTest {

    private Configuration mockConfig;
    private CIFSContext mockContext;
    private byte[] testFileId;
    private Smb2FlushRequest request;

    @BeforeEach
    void setUp() {
        mockConfig = mock(Configuration.class);
        mockContext = mock(CIFSContext.class);
        when(mockContext.getConfig()).thenReturn(mockConfig);

        // Create a test file ID (16 bytes)

 * Tests the decoding of FSCTL_PIPE_PEEK response according to MS-FSCC 2.3.29
 */
class SrvPipePeekResponseTest {

    private SrvPipePeekResponse response;

    @BeforeEach
    void setUp() {
        response = new SrvPipePeekResponse();
    }

    @Test
    @DisplayName("Test successful decode with data")
    void testDecodeWithData() throws SMBProtocolDecodingException {
        // Prepare test data

/**
 * Test class for ValidateNegotiateInfoResponse
 */
class ValidateNegotiateInfoResponseTest {

    private ValidateNegotiateInfoResponse response;

    @BeforeEach
    void setUp() {
        response = new ValidateNegotiateInfoResponse();
    }

    @Test
    @DisplayName("Test decode with valid buffer")
    void testDecodeValidBuffer() throws SMBProtocolDecodingException {

- **Java 21 features** - Switch expressions and pattern matching for reduced overhead

## 🧪 Building and Testing

### Development Setup
```bash
# Clone the repository
git clone https://github.com/codelibs/corelib.git
cd corelib

# Compile the project
mvn clean compile

# Run all tests
mvn test

# Run specific test class

    @Mock
    private SmbNegotiationRequest negotiationRequest;

    @Mock
    private CommonServerMessageBlock serverMessageBlock;

    @Mock
    private Response response;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
    }

    @Test
    @DisplayName("Test isValid returns true for valid negotiation")
    void testIsValidReturnsTrue() {
        // Arrange

import org.mockito.MockitoAnnotations;

/**
 * Test suite for DfsReferralResponseBuffer
 */
class DfsReferralResponseBufferTest {

    private DfsReferralResponseBuffer buffer;

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

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

 */
public class Smb2NegotiateResponseInputValidationTest {

    private Configuration mockConfig;
    private Smb2NegotiateResponse response;

    @BeforeEach
    public void setUp() {
        mockConfig = Mockito.mock(Configuration.class);
        response = new Smb2NegotiateResponse(mockConfig);
    }

    /**
     * Test that malformed structure size is properly rejected.
     */
    @Test

    /**
     * Helper method to create a basic SmbResource mock without pre-stubbing
     */
    private SmbResource createMockResource() {
        return mock(SmbResource.class);
    }

    @BeforeEach
    void setUp() {
        // Reset mocks to ensure clean state for each test
        reset(mockResource, mockLocator, mockContext);
    }

    @Nested
    @DisplayName("Interface Contract Tests")
    class InterfaceContractTests {