checkPublicSuffix("test.ck", null)
    checkPublicSuffix("b.test.ck", "b.test.ck")
    checkPublicSuffix("a.b.test.ck", "b.test.ck")
    checkPublicSuffix("www.ck", "www.ck")
    checkPublicSuffix("www.www.ck", "www.ck")
    // US K12.
    checkPublicSuffix("us", null)
    checkPublicSuffix("test.us", "test.us")
    checkPublicSuffix("www.test.us", "test.us")
    checkPublicSuffix("ak.us", null)

        }
        super.tearDown(testInfo);
    }

    // Test basic initialization
    @Test
    public void test_hookInitialization() {
        assertNotNull(apiFailureHook);
    }

    // Test API result status codes
    @Test
    public void test_apiResultStatusCodes() {
        // Test OK status
        ApiResult okResult = new ApiResult.ApiResponse().status(Status.OK).result();

import org.codelibs.fess.unit.UnitFessTestCase;
import org.junit.jupiter.api.Test;

public class AuthenticationChainTest extends UnitFessTestCase {

    // Test basic update operation
    @Test
    public void test_update_normalUser() {
        TestAuthenticationChain chain = new TestAuthenticationChain();
        User user = createTestUser("testuser", "Test User");

        chain.update(user);

        final ChatMessage assistantMessage = new ChatMessage(ChatMessage.ROLE_ASSISTANT, "test");
        final ChatMessage unknownMessage = new ChatMessage("unknown", "test");

        assertTrue(userMessage.isUser());
        assertFalse(assistantMessage.isUser());
        assertFalse(unknownMessage.isUser());
    }

    @Test
    public void test_isAssistant() {

import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import org.codelibs.fess.unit.UnitFessTestCase;
import org.junit.jupiter.api.Test;

public class DictionaryExpiredExceptionTest extends UnitFessTestCase {

    @Test
    public void test_constructor() {
        // Test default constructor
        DictionaryExpiredException exception = new DictionaryExpiredException();
        assertNotNull(exception);

        assertEquals("org.codelibs.fess.test", events.get(0).getLoggerName());
        assertEquals("test error message", events.get(0).getMessage());
        assertNull(events.get(0).getThrowable());
    }

    @Test
    public void test_append_warnEvent_withErrorLevel() {
        final LogEvent event = createLogEvent(Level.WARN, "org.codelibs.fess.test", "test warn message");
        appender.append(event);

        // Then
        assertEquals(3, maxReferralLevel);
    }

    @Test
    @DisplayName("Test with various filename formats")
    void testVariousFilenameFormats() {
        // Test UNC path
        assertDoesNotThrow(() -> new Trans2GetDfsReferral(mockConfig, "\\\\server\\share"));

        // Test forward slashes
        assertDoesNotThrow(() -> new Trans2GetDfsReferral(mockConfig, "//server/share"));

import org.junit.jupiter.api.RepeatedTest;
import org.junit.jupiter.api.Test;

/**
 * Unit tests for SimpleCircuitBreaker
 */
public class SimpleCircuitBreakerTest {

    private SimpleCircuitBreaker circuitBreaker;

    @BeforeEach
    void setUp() {
        circuitBreaker = new SimpleCircuitBreaker("test", 3, 2, 100);
    }

    @Test
    @DisplayName("Test initial state is CLOSED")
    void testInitialState() {

        // Assert
        assertEquals("Status of test-cluster is changed to RED.", result);
    }

    // Test constructor
    @Test
    public void test_constructor() {
        // Test that constructor creates instance without error
        PingSearchEngineJob job = new PingSearchEngineJob();
        assertNotNull(job);
    }

    // Test different cluster names
    @Test

    }

    @Test
    public void test_setUserInfoCacheSize() {
        int cacheSize = 5000;
        searchLogHelper.setUserInfoCacheSize(cacheSize);
        assertEquals(cacheSize, searchLogHelper.userInfoCacheSize);
    }

    @Test
    public void test_setLoggerName() {
        String loggerName = "test.logger";
        searchLogHelper.setLoggerName(loggerName);