new check for edge case

src/auto_archiver/modules/thumbnail_enricher/thumbnail_enricher.py

@@ -59,6 +59,9 @@ class ThumbnailEnricher(Enricher):
                     ).run()
 
                     try:
+                        if not os.path.exists(output_path):
+                            logger.info(f"thumbnail {index} for media {m.filename} was not created")
+                            continue
                         thumbnails_media.append(
                             Media(filename=output_path)
                             .set("id", f"thumbnail_{index}")

tests/enrichers/test_thumbnail_enricher.py

@@ -25,6 +25,7 @@ def mock_ffmpeg_environment(mocker):
     # Mocking all the ffmpeg calls in one place
     mock_ffmpeg_input = mocker.patch("ffmpeg.input")
     mock_makedirs = mocker.patch("os.makedirs")
+    mocker.patch("os.path.exists", return_value=True)
     (mocker.patch.object(Media, "is_video", return_value=True),)
     mock_probe = mocker.patch(
         "ffmpeg.probe",