assertEquals(rootCause, exception.getCause().getCause());
    }

    @Test
    public void test_exceptionSerialization() {
        // Test that the exception is serializable
        String message = "Serialization test";
        Exception cause = new Exception("Test cause");

        SearchQueryException exception = new SearchQueryException(message, cause);

    }

    // ========== Security Tests ==========

    /**
     * Security test: Verify that unregistered classes are rejected during serialization.
     * This test ensures that the Kryo registration requirement is working correctly.
     * Unregistered classes should throw an exception to prevent potential RCE attacks.
     */
    @Test
    public void test_security_unregisteredClassRejected() {

        assertProvideThrowsException("Test*Classification");
        assertProvideThrowsException("Test(Classification)");
        assertProvideThrowsException("Test[Classification]");
        assertProvideThrowsException("Test{Classification}");
        assertProvideThrowsException("Test|Classification");
        assertProvideThrowsException("Test\\Classification");
        assertProvideThrowsException("Test/Classification");

            indexUpdater.join(1000);
        }
        super.tearDown(testInfo);
    }

    // Test initialization
    @Test
    public void test_init() {
        indexUpdater.init();
        assertNotNull(indexUpdater);
    }

    // Test initialization with IngestFactory
    @Test
    public void test_init_withIngestFactory() {
        ComponentUtil.register(ingestFactory, "ingestFactory");

        // Verify the exception can be created and basic properties work
        assertNotNull(exception);
        assertEquals("Serialization test", exception.getMessage());
    }

    @Test
    public void test_stackTrace() {
        // Test that stack trace is properly maintained
        String message = "Stack trace test";

    //                                                                        ============

    @Test
    public void test_Status_OK() {
        assertEquals(0, Status.OK.getId());
    }

    @Test
    public void test_Status_BAD_REQUEST() {
        assertEquals(1, Status.BAD_REQUEST.getId());
    }

    @Test
    public void test_Status_SYSTEM_ERROR() {

package org.codelibs.fess.opensearch.client;

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

public class SearchEngineClientExceptionTest extends UnitFessTestCase {

    @Test
    public void test_constructor_withMessage() {
        // Test constructor with message only
        String message = "Test error message";
        SearchEngineClientException exception = new SearchEngineClientException(message);

        // Test with deleted item (empty newInput)
        item.setNewInput("");
        assertEquals("", item.toLineString());

        // Test with item created with id=0
        ProtwordsItem newItem = new ProtwordsItem(0, "newword");
        assertEquals("newword", newItem.toLineString());
    }

    @Test
    public void test_toLineString_withEmptyInput() {
        // Test toLineString with empty input

 */
package org.codelibs.fess.exception;

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

public class LdapOperationExceptionTest extends UnitFessTestCase {

    @Test
    public void test_constructor_withMessage() {
        // Test constructor with message only
        String message = "LDAP operation failed";

        }
    }

    @Test
    public void test_toLowercaseWildcard_enabled() {
        queryCommand.setLowercaseWildcard(true);

        assertEquals("test", queryCommand.toLowercaseWildcard("TEST"));
        assertEquals("test*", queryCommand.toLowercaseWildcard("TEST*"));
        assertEquals("*test*", queryCommand.toLowercaseWildcard("*TEST*"));