*/
public class ThumbnailGenerator {

    private static final Logger logger = LogManager.getLogger(ThumbnailGenerator.class);

    /**
     * OpenSearch client for accessing indexed documents.
     */
    @Resource
    public SearchEngineClient searchEngineClient;

    /**
     * Default constructor for ThumbnailGenerator.
     */
    public ThumbnailGenerator() {
        // Default constructor
    }

import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.timer.TimeoutTask;
import org.codelibs.fess.Constants;
import org.codelibs.fess.exception.JobProcessingException;
import org.codelibs.fess.exec.ThumbnailGenerator;
import org.codelibs.fess.helper.ProcessHelper;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.InputStreamThread;

import org.junit.jupiter.api.TestInfo;

public class ThumbnailGeneratorTest extends UnitFessTestCase {

    private ThumbnailGenerator thumbnailGenerator;

    @Override
    protected void setUp(TestInfo testInfo) throws Exception {
        super.setUp(testInfo);
        thumbnailGenerator = new ThumbnailGenerator();
    }

    @Override
    protected void tearDown(TestInfo testInfo) throws Exception {

        assertFalse(thumbnailGenerator.isTarget(docMap));
    }

    @Test
    public void test_isAvailable() {
        // Test availability check
        assertTrue(thumbnailGenerator.isAvailable());
    }

    @Test
    public void test_destroy() {
        // Test destroy method - should not throw exception
        thumbnailGenerator.destroy();

    /**
     * Base directory for storing thumbnail files.
     */
    protected File baseDir;

    /**
     * List of available thumbnail generators.
     */
    protected final List<ThumbnailGenerator> generatorList = new ArrayList<>();

    /**
     * Queue for thumbnail generation tasks containing URL, content, and path tuples.
     */
    protected BlockingQueue<Tuple3<String, String, String>> thumbnailTaskQueue;

import org.codelibs.fess.thumbnail.ThumbnailGenerator;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.DocumentUtil;

/**
 * Abstract base class for thumbnail generators.
 * Provides common functionality for thumbnail generation implementations.
 */
public abstract class BaseThumbnailGenerator implements ThumbnailGenerator {

        // This is primarily a logging method, so we just verify no exception
        assertTrue(true);
    }

    // Helper test thumbnail generator class
    private static class TestThumbnailGenerator implements ThumbnailGenerator {
        boolean available = false;
        boolean target = false;
        Tuple3<String, String, String> task = null;
        boolean generateResult = false;
        boolean generateCalled = false;