assertEquals(20, generator.maxRedirectCount);

        // Set zero
        generator.setMaxRedirectCount(0);
        assertEquals(0, generator.maxRedirectCount);
    }

    public void test_createTask() {
        // Test createTask method (requires FessConfig)
        generator = new TestThumbnailGenerator();
        Map<String, Object> docMap = new HashMap<>();
        docMap.put("id", "doc123");

        assertEquals("/usr/bin/test", emptyGenerator.expandPath("${path}/test"));
        assertEquals("other/path", emptyGenerator.expandPath("other/path"));
    }

    public void test_createTask() {
        // Initialize without container
        emptyGenerator = new EmptyGenerator();

        // Test basic functionality
        Map<String, Object> docMap = new HashMap<>();