if (total == 0) return 0.0;
        return (double) hits / total;
    }
    
    public void recordCacheHit() { cacheHits.incrementAndGet(); }
    public void recordCacheMiss() { cacheMisses.incrementAndGet(); }
    public void recordInvalidation() { cacheInvalidations.incrementAndGet(); }
    public void recordChangeNotification() { changeNotifications.incrementAndGet(); }
}

 * class Server {
 *   public static void main(String[] args) {
 *     Set<Service> services = ...;
 *     ServiceManager manager = new ServiceManager(services);
 *     manager.addListener(new Listener() {
 *         public void stopped() {}
 *         public void healthy() {
 *           // Services have been initialized and are healthy, start accepting requests...
 *         }
 *         public void failure(Service service) {

 * class Server {
 *   public static void main(String[] args) {
 *     Set<Service> services = ...;
 *     ServiceManager manager = new ServiceManager(services);
 *     manager.addListener(new Listener() {
 *         public void stopped() {}
 *         public void healthy() {
 *           // Services have been initialized and are healthy, start accepting requests...
 *         }
 *         public void failure(Service service) {

    private static final String TEST_FILE_NAME = "testFile.txt";
    private SmbComQueryInformation smbComQueryInformation;

    @BeforeEach
    public void setUp() {
        smbComQueryInformation = new SmbComQueryInformation(TEST_FILE_NAME);
    }

    @Test
    public void testConstructor() {
        // Test if the constructor sets the file name and command correctly
        assertEquals(TEST_FILE_NAME, smbComQueryInformation.path);

    @MethodSource("preferredMechData_anonymous")
    void isPreferredMech_anonymous(ASN1ObjectIdentifier oid, boolean expected) {
        Kerb5Authenticator auth = new Kerb5Authenticator((Subject) null);
        assertEquals(expected, auth.isPreferredMech(oid));
    }

    @Test
    @DisplayName("Accessors: user/realm/service and lifetimes")
    void accessors_workAsExpected() {

     * Sets the notifications list.
     *
     * @param notifications the notifications to set
     */
    public void setNotifications(List<WitnessNotificationResponse> notifications) {
        this.notifications = notifications != null ? new ArrayList<>(notifications) : new ArrayList<>();
    }

    @Override
    protected void encodeWitnessParameters(NdrBuffer buf) throws NdrException {
        // Encode input parameters for WitnessAsyncNotify

    @DisplayName("Should generate random lease key with correct size")
    void testRandomLeaseKeyGeneration() {
        Smb2LeaseKey key = new Smb2LeaseKey();

        assertNotNull(key.getKey());
        assertEquals(16, key.getKey().length);
        assertFalse(key.isZero());
    }

    @Test
    @DisplayName("Should create lease key from byte array")
    void testLeaseKeyFromBytes() {

        channel2.setState(ChannelState.ESTABLISHED);
    }

    @Test
    void testSingleChannelSelection() {
        when(mockChannelManager.getHealthyChannels()).thenReturn(Collections.singletonList(channel1));

        ChannelInfo selected = loadBalancer.selectChannel(mockMessage);
        assertEquals(channel1, selected);
    }

    @Test
    void testNoChannelsAvailable() {

    public int getActiveRegistrationCount() {
        return registrations.size();
    }

    @Override
    public void close() {
        // Stop all async notification tasks first
        List<CompletableFuture<Void>> taskFutures = new ArrayList<>(asyncNotifyTasks.values());
        for (CompletableFuture<Void> task : taskFutures) {
            task.cancel(true);
        }
        asyncNotifyTasks.clear();

        }
        return 0;
    }

    @Override
    public void write(final int b) throws SmbException {
        tmp[0] = (byte) b;
        write(tmp, 0, 1);
    }

    @Override
    public void write(final byte b[]) throws SmbException {
        write(b, 0, b.length);
    }

    @Override
    public void write(final byte b[], int off, int len) throws SmbException {
        if (len <= 0) {