generator.createTask("/path/to/thumb.jpg", docMap);
        } catch (Exception e) {
            // Expected when FessConfig is not available
        }
    }

    @Test
    public void test_mimetypePatternMatching() {
        // Test that MIME type patterns work correctly as regex
        // This verifies the fix for SVG thumbnail generation issue
        // where image/svg+xml was not matching due to unescaped + character