import org.junit.jupiter.api.Test;

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;

        TestThumbnailGenerator generator = new TestThumbnailGenerator();
        generator.available = true;

        thumbnailManager.add(generator);
        assertEquals(1, thumbnailManager.generatorList.size());
    }

    // Test add generator not available
    @Test
    public void test_add_unavailableGenerator() {
        TestThumbnailGenerator generator = new TestThumbnailGenerator();

        tempOutputFile = Files.createTempFile(tempDir, "thumbnail", ".png").toFile();

        // Create a test implementation of ThumbnailGenerator
        thumbnailGenerator = new TestThumbnailGenerator();
    }

    @Override
    protected void tearDown(TestInfo testInfo) throws Exception {
        // Clean up temp files
        if (tempOutputFile != null && tempOutputFile.exists()) {