@Mock
    private Configuration mockDelegate;

    private DelegatingConfiguration delegatingConfig;

    @BeforeEach
    void setUp() {
        delegatingConfig = new DelegatingConfiguration(mockDelegate);
    }

    @Test
    @DisplayName("Constructor should require non-null delegate")
    void testConstructorWithNullDelegate() {
        // When & Then
        assertDoesNotThrow(() -> {

    }

    @Override
    protected void doStart() {
      new Thread() {
        @Override
        public void run() {
          Uninterruptibles.sleepUninterruptibly(delay, MILLISECONDS);
          notifyStarted();
        }
      }.start();
    }

    @Override
    protected void doStop() {
      new Thread() {
        @Override
        public void run() {

  }

  private static void checkSha1(String expected, byte[] key, String data) {
    checkSha1(expected, key, data.getBytes(UTF_8));
  }

  private static void checkSha1(String expected, byte[] key, byte[] data) {
    checkHmac(expected, Hashing.hmacSha1(key), data);
  }

  private static void checkMd5(String expected, byte[] key, String data) {

public class OptionalUtilTest extends UnitFessTestCase {

    public void test_ofNullable_withNonNullString() {
        String testValue = "test string";
        OptionalEntity<String> result = OptionalUtil.ofNullable(testValue);

        assertNotNull(result);
        assertTrue(result.isPresent());
        assertEquals(testValue, result.get());
    }

    public void test_ofNullable_withNullString() {
        String testValue = null;

        // Helper methods for testing
        void setSetupWireFormatReturn(int value) {
            this.setupWireFormatReturn = value;
        }

        void setParametersWireFormatReturn(int value) {
            this.parametersWireFormatReturn = value;
        }

        void setDataWireFormatReturn(int value) {
            this.dataWireFormatReturn = value;
        }

        void setSetupBuffer(byte[] buffer) {

/**
 * Tests for the {@link SmbComClose} class.
 */
public class SmbComCloseTest {

    private CIFSContext context;
    private PropertyConfiguration config;

    @BeforeEach
    public void setUp() throws CIFSException {
        // Create a mock configuration for testing
        Properties properties = new Properties();
        config = new PropertyConfiguration(properties);
        context = mock(CIFSContext.class);

    private CommonServerMessageBlock mockOperation;

    private NetworkInterfaceInfo localInterface;
    private NetworkInterfaceInfo remoteInterface;
    private ChannelInfo channelInfo;

    @BeforeEach
    void setUp() throws UnknownHostException {
        InetAddress localAddr = InetAddress.getByName("192.168.1.100");
        InetAddress remoteAddr = InetAddress.getByName("192.168.1.200");

            }
        };
        ComponentUtil.register(systemHelper, "systemHelper");
    }

    @Override
    public void tearDown() throws Exception {
        super.tearDown();
    }

    // Test append method with null value
    public void test_append_nullValue() {
        StringBuilder buf = new StringBuilder();
        Supplier<Object> supplier = () -> null;

        void testCommandInitialization() {
            Smb2WriteRequest writeRequest = new Smb2WriteRequest(mockConfig, testFileId);
            // Command is set in parent constructor
            assertNotNull(writeRequest);
        }

        @Test
        @DisplayName("Should accept null file ID in constructor")
        void testConstructorWithNullFileId() {

    }

    @Test
    @DisplayName("getConfig returns context config")
    void getConfig_returnsConfig() {
        SmbTreeConnection c = newConn();
        assertSame(config, c.getConfig());
    }

    @Test
    @DisplayName("acquire calls tree.acquire on first usage, release calls tree.release at zero")
    void acquire_release_lifecycle() {
        SmbTreeConnection c = newConn();