public class BaseThumbnailGeneratorTest extends UnitFessTestCase {

    private TestThumbnailGenerator generator;

    // Test concrete implementation for testing abstract BaseThumbnailGenerator
    private static class TestThumbnailGenerator extends BaseThumbnailGenerator {
        private boolean generateCalled = false;
        private boolean destroyCalled = false;

        @Override

 * This class is used as a no-op thumbnail generator when thumbnail generation is disabled
 * or when no specific thumbnail generator is configured.
 */
public class EmptyGenerator extends BaseThumbnailGenerator {

    /**
     * Default constructor.
     */
    public EmptyGenerator() {
        super();
    }

    /**
     * Generates a thumbnail for the specified ID and output file.