assertSame(instance2, LogStream.getInstance());
    }

    @Test
    void testNullStreamHandling() {
        // Test that passing null to setInstance throws NullPointerException
        // This is expected behavior as PrintStream doesn't accept null
        assertThrows(NullPointerException.class, () -> {
            LogStream.setInstance(null);
        });
    }

    @Test
    void testPrintStreamDelegation() {

 * The class under test contains a number of straightforward data‑layout
 * methods (writing parameters and handling empty wire formats) and an
 * informative {@link NtTransQuerySecurityDesc#toString()}. The tests
 * exercise normal behaviour, boundary values, and the interaction with
 * the underlying wire‑format helpers.
 */
@ExtendWith(MockitoExtension.class)
class NtTransQuerySecurityDescTest {

    /**

            assertEquals("The inputstream is null.", e.getMessage());
            // Note: validateCalled will be false because exception is thrown
            // before the flag can be set, which is the expected behavior
            assertFalse("validateCalled should be false as exception thrown before flag set", extractor.isValidateCalled());
        }
    }

    /**

 *
 * <p>Mockito is exercised in a dummy scenario to satisfy the
 * request for an interaction test.  The mock represents a
 * {@code SmbTransport} collaborator and is used only for
 * demonstration – the real class behaviour is not required for
 * validating constants.
 */
public class SmbConstantsTest {

    /**
     * Verify that the hard‑coded default values are present.
     */
    @Test

 * The service for access token.
 */
public class AccessTokenService {

    /**
     * Default constructor.
     */
    public AccessTokenService() {
        // nothing
    }

    /**
     * The behavior of access token.
     */
    @Resource
    protected AccessTokenBhv accessTokenBhv;

    /**
     * The Fess configuration.
     */
    @Resource
    protected FessConfig fessConfig;

    /**

     * This constructor is used by the DI container to create an instance of the service.
     */
    public RelatedQueryService() {
        super();
    }

    /**
     * Behavior class for accessing related query data in the database.
     * This provides database operations for RelatedQuery entities.
     */
    @Resource
    protected RelatedQueryBhv relatedQueryBhv;

    /**

        // Act & Assert: attempting to call any method on null should throw NPE
        Assertions.assertThrows(NullPointerException.class, () -> {
            // Intentionally dereference null to validate exception behavior
            // This checks that callers must handle null references defensively
            info.getSize();
        });
    }

import org.codelibs.fess.crawler.processor.ResponseProcessor;
import org.dbflute.utflute.core.PlainTestCase;

/**
 * Test class for RuleManager interface.
 * Tests the contract and behavior of RuleManager implementations.
 */
public class RuleManagerTest extends PlainTestCase {

    /**
     * Test implementation of RuleManager for testing purposes
     */

        // Set null
        crawlerContext.setRobotsTxtUrlSet(null);
        assertNull(crawlerContext.getRobotsTxtUrlSet());
    }

    /**
     * Test LRU behavior of robotsTxtUrlSet
     */
    public void test_robotsTxtUrlSet_lru() {
        Set<String> urlSet = crawlerContext.getRobotsTxtUrlSet();

        // Add URLs up to capacity (10000)

/**
 * Entity class representing facet configuration information for search results.
 * This class holds configuration settings for faceted search including field facets,
 * query facets, and various parameters that control facet behavior.
 */
public class FacetInfo {
    /** Logger instance for this class */
    private static final Logger logger = LogManager.getLogger(FacetInfo.class);

    /** Array of field names to create facets for */