Merge pull request #434 from PeterUpfold/video-unavailable-fix

Removes 'video unavailable' from YouTube deletion indicators

Dockerfile

@@ -1,18 +1,17 @@
-FROM webrecorder/browsertrix-crawler:1.11.4 AS base
+FROM webrecorder/browsertrix-crawler:1.12.4 AS base
 
 ENV RUNNING_IN_DOCKER=1 \
     LANG=C.UTF-8 \
     LC_ALL=C.UTF-8 \
     PYTHONDONTWRITEBYTECODE=1 \
-    PYTHONFAULTHANDLER=1 \
-    PATH="/root/.local/bin:$PATH"
+    PYTHONFAULTHANDLER=1
 
 
 ARG TARGETARCH
 
 # Installing system dependencies
 RUN	apt-get update && \
-    apt-get install -y --no-install-recommends gcc ffmpeg fonts-noto exiftool python3-tk 
+    apt-get install -y --no-install-recommends gcc ffmpeg fonts-noto exiftool python3-tk
 
 # Poetry and runtime
 FROM base AS runtime

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [project]
 name = "auto-archiver"
-version = "1.2.3"
+version = "1.2.7"
 description = "Automatically archive links to videos, images, and social media content from Google Sheets (and more)."
 
 requires-python = ">=3.10,<3.13"

src/auto_archiver/core/metadata.py

@@ -11,6 +11,7 @@ Key Functionalities:
 
 from __future__ import annotations
 import hashlib
+import os
 from typing import Any, List, Union, Dict
 from dataclasses import dataclass, field
 from dataclasses_json import dataclass_json
@@ -181,8 +182,14 @@ class Metadata:
         media_hashes = set()
         new_media = []
         for m in self.media:
+            if not m.filename:
+                new_media.append(m)
+                continue
             h = m.get("hash")
             if not h:
+                if not os.path.exists(m.filename):
+                    logger.warning(f"Skipping missing media file: {m.filename}")
+                    continue
                 h = calculate_hash_in_chunks(hashlib.sha256(), int(1.6e7), m.filename)
             if len(h) and h in media_hashes:
                 continue

src/auto_archiver/core/orchestrator.py

@@ -467,7 +467,11 @@ Here's how that would look: \n\nsteps:\n  extractors:\n  - [your_extractor_name_
         return self.setup_complete_parser(basic_config, yaml_config, unused_args)
 
     def check_for_updates(self):
-        response = requests.get("https://pypi.org/pypi/auto-archiver/json").json()
+        try:
+            response = requests.get("https://pypi.org/pypi/auto-archiver/json", timeout=10).json()
+        except Exception as e:
+            logger.debug(f"Unable to check for updates: {e}")
+            return
         latest_version = version.parse(response["info"]["version"])
         current_version = version.parse(__version__)
         # check version compared to current version

src/auto_archiver/modules/antibot_extractor_enricher/antibot_extractor_enricher.py

@@ -73,6 +73,7 @@ class AntibotExtractorEnricher(Extractor, Enricher):
         if self.enrich(result):
             result.status = "antibot"
             return result
+        return False
 
     def _prepare_user_data_dir(self):
         if self.user_data_dir:

src/auto_archiver/modules/generic_extractor/bluesky.py

@@ -39,12 +39,18 @@ class Bluesky(GenericDropin):
         media_url = "https://bsky.social/xrpc/com.atproto.sync.getBlob?cid={}&did={}"
         for image_media in image_medias:
             url = media_url.format(image_media["image"]["ref"]["$link"], post["author"]["did"])
-            image_media = archiver.download_from_url(url)
-            media.append(Media(image_media))
+            filename = archiver.download_from_url(url)
+            if filename:
+                media.append(Media(filename))
+            else:
+                logger.warning(f"Failed to download Bluesky image from {url}")
         for video_media in video_medias:
             url = media_url.format(video_media["ref"]["$link"], post["author"]["did"])
-            video_media = archiver.download_from_url(url)
-            media.append(Media(video_media))
+            filename = archiver.download_from_url(url)
+            if filename:
+                media.append(Media(filename))
+            else:
+                logger.warning(f"Failed to download Bluesky video from {url}")
         return media
 
     def _get_post_data(self, post: dict) -> dict:

src/auto_archiver/modules/generic_extractor/generic_extractor.py

@@ -204,8 +204,11 @@ class GenericExtractor(Extractor):
         if thumbnail_url:
             try:
                 cover_image_path = self.download_from_url(thumbnail_url)
-                media = Media(cover_image_path)
-                metadata.add_media(media, id="cover")
+                if cover_image_path:
+                    media = Media(cover_image_path)
+                    metadata.add_media(media, id="cover")
+                else:
+                    logger.warning(f"Failed to download cover image from {thumbnail_url}")
             except Exception as e:
                 logger.error(f"Could not download cover image {thumbnail_url}: {e}")
 
@@ -572,6 +575,8 @@ class GenericExtractor(Extractor):
             "--live-from-start" if self.live_from_start else "--no-live-from-start",
             "--postprocessor-args",
             "ffmpeg:-bitexact",  # ensure bitexact output to avoid mismatching hashes for same video
+            "--js-runtimes",
+            "node",  # yt-dlp defaults to deno-only; node is available in the base image
         ]
 
         # proxy handling

src/auto_archiver/modules/generic_extractor/truth.py

@@ -1,6 +1,7 @@
 from typing import Type
 
 from auto_archiver.utils import traverse_obj
+from auto_archiver.utils.custom_logger import logger
 from auto_archiver.core.metadata import Metadata, Media
 from auto_archiver.core.extractor import Extractor
 from yt_dlp.extractor.common import InfoExtractor
@@ -58,6 +59,9 @@ class Truth(GenericDropin):
         # add the media
         for media in post.get("media_attachments", []):
             filename = archiver.download_from_url(media["url"])
+            if not filename:
+                logger.warning(f"Failed to download media from {media['url']}")
+                continue
             result.add_media(Media(filename), id=media.get("id"))
 
         return result

src/auto_archiver/modules/generic_extractor/twitter.py

@@ -157,5 +157,8 @@ class Twitter(GenericDropin):
                 mimetype = variant["content_type"]
             ext = mimetypes.guess_extension(mimetype)
             media.filename = archiver.download_from_url(media.get("src"), f"{slugify(url)}_{i}{ext}")
+            if not media.filename:
+                logger.warning(f"Failed to download media from {media.get('src')}")
+                continue
             result.add_media(media)
         return result

src/auto_archiver/modules/ghostarchive_enricher/__init__.py

@@ -0,0 +1 @@
+from .ghostarchive_enricher import GhostarchiveEnricher

src/auto_archiver/modules/ghostarchive_enricher/__manifest__.py

@@ -0,0 +1,58 @@
+{
+    "name": "Ghost Archive Enricher",
+    "type": ["enricher"],
+    "entry_point": "ghostarchive_enricher::GhostarchiveEnricher",
+    "requires_setup": False,
+    "dependencies": {
+        "python": ["loguru", "requests", "bs4", "seleniumbase"],
+    },
+    "configs": {
+        "timeout": {
+            "default": 120,
+            "type": "int",
+            "help": "seconds to wait for successful archive confirmation from Ghost Archive.",
+        },
+        "check_existing": {
+            "default": True,
+            "type": "bool",
+            "help": "whether to search for an existing archive before submitting a new one.",
+        },
+        "proxy_http": {
+            "default": None,
+            "help": "http proxy to use for requests, eg http://proxy-user:password@proxy-ip:port",
+        },
+        "proxy_https": {
+            "default": None,
+            "help": "https proxy to use for requests, eg https://proxy-user:password@proxy-ip:port",
+        },
+    },
+    "description": """
+    Submits the current URL to [Ghost Archive](https://ghostarchive.org/) for archiving and returns the archived page URL.
+
+    Used as an **enricher** to add a Ghost Archive URL to items already extracted by other modules.
+
+    ### Features
+    - Archives any public URL using the Ghost Archive service.
+    - Optionally checks for existing archives before submitting a new one.
+    - Supports HTTP and HTTPS proxies for requests.
+    - Parses HTML responses to extract archive URLs (Ghost Archive has no JSON API).
+
+    ### Important
+    - This module confirms that Ghost Archive accepted the URL submission and returned an archive link.
+      It does **not** verify the contents or completeness of the archived page.
+
+    ### Notes
+    - Ghost Archive is a free service with no authentication required.
+    - Archived pages must be smaller than 50 MB (including CSS, fonts, images, etc.).
+    - Videos are archived up to 360p and must be under 100 MB and shorter than 30 minutes.
+    - Archival may take up to 5 minutes depending on the queue and page complexity.
+    - Archived content is stored indefinitely.
+    - Ghost Archive does not archive pages that require authentication or form submission.
+
+    ### Limitations
+    - No official API — this module interacts with the Ghost Archive web interface.
+    - The submission endpoint is protected by Cloudflare, so a headless browser (SeleniumBase) is used for new submissions.
+    - Searching for existing archives uses plain HTTP requests and does not require a browser.
+    - Rate limiting may apply; consider using a delay between requests if archiving many URLs.
+    """,
+}

src/auto_archiver/modules/ghostarchive_enricher/ghostarchive_enricher.py

@@ -0,0 +1,153 @@
+import time
+import re
+
+import requests
+from bs4 import BeautifulSoup
+from seleniumbase import SB
+from auto_archiver.utils.custom_logger import logger
+from auto_archiver.utils import url as UrlUtil
+from auto_archiver.core import Enricher, Metadata
+
+
+class GhostarchiveEnricher(Enricher):
+    """
+    Submits the current URL to Ghost Archive (ghostarchive.org) for archiving
+    and stores the archived page URL as enrichment metadata.
+
+    Ghost Archive has no official API — this module interacts with the web form
+    and parses HTML responses. The submission endpoint is protected by Cloudflare,
+    so a headless browser (SeleniumBase) is used for archival submissions, while
+    plain HTTP requests are used for searching existing archives.
+
+    Note: this module only confirms that Ghost Archive accepted the submission
+    and returned an archive URL. It does not verify that the archived page
+    content is complete or correctly rendered.
+    """
+
+    GHOSTARCHIVE_BASE = "https://ghostarchive.org"
+    ARCHIVE_ENDPOINT = f"{GHOSTARCHIVE_BASE}/archive2"
+    SEARCH_ENDPOINT = f"{GHOSTARCHIVE_BASE}/search"
+    ARCHIVE_URL_PATTERN = re.compile(r"/archive/([A-Za-z0-9]+)")
+
+    def _get_proxies(self) -> dict:
+        proxies = {}
+        if self.proxy_http:
+            proxies["http"] = self.proxy_http
+        if self.proxy_https:
+            proxies["https"] = self.proxy_https
+        return proxies
+
+    def _get_headers(self) -> dict:
+        return {
+            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
+        }
+
+    def _normalize_archive_href(self, href: str) -> str | None:
+        """Normalize an archive link href to a full HTTPS URL, filtering out replay links."""
+        if "/archive/" not in href or "/replay/" in href:
+            return None
+        if href.startswith("/"):
+            return f"{self.GHOSTARCHIVE_BASE}{href}"
+        if href.startswith("http://ghostarchive.org"):
+            return href.replace("http://", "https://")
+        if href.startswith("https://ghostarchive.org"):
+            return href
+        return None
+
+    def _search_existing(self, url: str) -> str | None:
+        """
+        Search Ghost Archive for an existing archive of the given URL.
+        Returns the archive URL if found, otherwise None.
+        """
+        try:
+            r = requests.get(
+                self.SEARCH_ENDPOINT,
+                params={"term": url},
+                headers=self._get_headers(),
+                proxies=self._get_proxies(),
+                timeout=30,
+            )
+            if r.status_code != 200:
+                logger.warning(f"Ghost Archive search returned status {r.status_code}")
+                return None
+
+            soup = BeautifulSoup(r.text, "html.parser")
+            for link in soup.find_all("a", href=True):
+                archive_url = self._normalize_archive_href(link["href"])
+                if archive_url:
+                    logger.info(f"Found existing Ghost Archive: {archive_url}")
+                    return archive_url
+
+        except requests.exceptions.RequestException as e:
+            logger.warning(f"Ghost Archive search failed: {e}")
+
+        return None
+
+    def _submit_url(self, url: str) -> str | None:
+        """
+        Submit a URL to Ghost Archive for archiving using a headless browser.
+        The /archive2 endpoint is Cloudflare-protected, requiring JS execution.
+        Returns the archive URL if successful, otherwise None.
+        """
+        try:
+            with SB(uc=True, headless=True) as sb:
+                logger.debug("Opening Ghost Archive homepage in headless browser")
+                sb.open(self.GHOSTARCHIVE_BASE)
+
+                # fill in the archive form and submit
+                sb.type('input[name="archive"]', url)
+                sb.click('input[type="submit"][value="Submit for archival"]')
+
+                # wait for navigation to /archive/{id} or timeout
+                start_time = time.time()
+                while time.time() - start_time < self.timeout:
+                    current_url = sb.get_current_url()
+                    if self.ARCHIVE_URL_PATTERN.search(current_url):
+                        archive_url = current_url.split("?")[0]
+                        logger.info(f"Ghost Archive saved: {archive_url}")
+                        return archive_url
+                    time.sleep(2)
+
+                # if we didn't redirect, try parsing the page source
+                page_source = sb.get_page_source()
+                return self._parse_archive_url(page_source)
+
+        except Exception as e:
+            logger.warning(f"Ghost Archive submission failed: {e}")
+            return None
+
+    def _parse_archive_url(self, html: str) -> str | None:
+        """Parse HTML response to find an archive URL."""
+        soup = BeautifulSoup(html, "html.parser")
+        for link in soup.find_all("a", href=True):
+            archive_url = self._normalize_archive_href(link["href"])
+            if archive_url:
+                return archive_url
+        return None
+
+    def enrich(self, to_enrich: Metadata) -> bool:
+        url = to_enrich.get_url()
+        if UrlUtil.is_auth_wall(url):
+            logger.debug("[SKIP] Ghost Archive since url is behind AUTH WALL")
+            return False
+
+        if to_enrich.get("ghostarchive"):
+            logger.info(f"Ghost Archive enricher had already been executed: {to_enrich.get('ghostarchive')}")
+            return True
+
+        # optionally check for existing archive first
+        archive_url = None
+        if self.check_existing:
+            logger.debug(f"Searching Ghost Archive for existing archive of {url}")
+            archive_url = self._search_existing(url)
+
+        if not archive_url:
+            logger.debug(f"Submitting {url} to Ghost Archive")
+            archive_url = self._submit_url(url)
+
+        if archive_url:
+            to_enrich.set("ghostarchive", archive_url)
+            return True
+
+        logger.warning(f"Ghost Archive failed to archive {url}")
+        return False

src/auto_archiver/modules/hash_enricher/hash_enricher.py

@@ -25,6 +25,9 @@ class HashEnricher(Enricher):
         logger.debug(f"Calculating media hashes with algo={self.algorithm}")
 
         for i, m in enumerate(to_enrich.media):
+            if not m.filename:
+                logger.warning(f"Skipping hash for media without filename: {m}")
+                continue
             if len(hd := self.calculate_hash(m.filename)):
                 to_enrich.media[i].set("hash", f"{self.algorithm}:{hd}")
 

src/auto_archiver/modules/instagram_api_extractor/instagram_api_extractor.py

@@ -99,7 +99,10 @@ class InstagramAPIExtractor(Extractor):
         result.set_title(user.get("full_name", username)).set("data", user)
         if pic_url := user.get("profile_pic_url_hd", user.get("profile_pic_url")):
             filename = self.download_from_url(pic_url)
-            result.add_media(Media(filename=filename), id="profile_picture")
+            if filename:
+                result.add_media(Media(filename=filename), id="profile_picture")
+            else:
+                logger.warning(f"Failed to download profile picture from {pic_url}")
 
         count_posts = 0
         if self.full_profile:
@@ -202,7 +205,10 @@ class InstagramAPIExtractor(Extractor):
 
         if cover_media := h_info.get("cover_media", {}).get("cropped_image_version", {}).get("url"):
             filename = self.download_from_url(cover_media)
-            result.add_media(Media(filename=filename), id=f"cover_media highlight {id}")
+            if filename:
+                result.add_media(Media(filename=filename), id=f"cover_media highlight {id}")
+            else:
+                logger.warning(f"Failed to download cover media from {cover_media}")
 
         items = h_info.get("items", [])[::-1]  # newest to oldest
         items = items[: min(max_to_download, len(items))]
@@ -345,7 +351,10 @@ class InstagramAPIExtractor(Extractor):
         image_media = None
         if image_url := item.get("thumbnail_url"):
             filename = self.download_from_url(image_url, verbose=False)
-            image_media = Media(filename=filename)
+            if filename:
+                image_media = Media(filename=filename)
+            else:
+                logger.warning(f"Failed to download thumbnail from {image_url}")
 
         # retrieve video info
         best_id = item.get("id", item.get("pk"))
@@ -357,16 +366,19 @@ class InstagramAPIExtractor(Extractor):
 
         if video_url := item.get("video_url"):
             filename = self.download_from_url(video_url, verbose=False)
-            video_media = Media(filename=filename)
-            if taken_at:
-                video_media.set("date", taken_at)
-            if code:
-                video_media.set("url", f"https://www.instagram.com/p/{code}")
-            if caption_text:
-                video_media.set("text", caption_text)
-            video_media.set("preview", [image_media])
-            video_media.set("data", [item])
-            return item, video_media, f"{context or 'video'} {best_id}"
+            if filename:
+                video_media = Media(filename=filename)
+                if taken_at:
+                    video_media.set("date", taken_at)
+                if code:
+                    video_media.set("url", f"https://www.instagram.com/p/{code}")
+                if caption_text:
+                    video_media.set("text", caption_text)
+                video_media.set("preview", [image_media])
+                video_media.set("data", [item])
+                return item, video_media, f"{context or 'video'} {best_id}"
+            else:
+                logger.warning(f"Failed to download video from {video_url}")
         elif image_media:
             if taken_at:
                 image_media.set("date", taken_at)

src/auto_archiver/modules/meta_enricher/meta_enricher.py

@@ -25,6 +25,9 @@ class MetaEnricher(Enricher):
         logger.debug(f"Calculating archive file sizes for {len(to_enrich.media)} media files")
         total_size = 0
         for media in to_enrich.get_all_media():
+            if not media.filename:
+                logger.warning(f"Skipping file size for media without filename: {media}")
+                continue
             file_stats = os.stat(media.filename)
             media.set("bytes", file_stats.st_size)
             media.set("size", self.human_readable_bytes(file_stats.st_size))

src/auto_archiver/modules/telegram_extractor/telegram_extractor.py

@@ -49,10 +49,18 @@ class TelegramExtractor(Extractor):
             if not len(image_urls):
                 return False
             for img_url in image_urls:
-                result.add_media(Media(self.download_from_url(img_url)))
+                filename = self.download_from_url(img_url)
+                if not filename:
+                    logger.warning(f"Failed to download image from {img_url}")
+                    continue
+                result.add_media(Media(filename))
         else:
             video_url = video.get("src")
-            m_video = Media(self.download_from_url(video_url))
+            video_filename = self.download_from_url(video_url)
+            if not video_filename:
+                logger.warning(f"Failed to download video from {video_url}")
+                return False
+            m_video = Media(video_filename)
             # extract duration from HTML
             try:
                 duration = s.find_all("time")[0].contents[0]

src/auto_archiver/modules/telethon_extractor/telethon_extractor.py

@@ -1,3 +1,4 @@
+import asyncio
 import os
 import shutil
 import re
@@ -53,6 +54,16 @@ class TelethonExtractor(Extractor):
         logger.debug(f"Making a copy of the session file {base_session_filepath} to {self.session_file}.session")
         shutil.copy(base_session_filepath, f"{self.session_file}.session")
 
+        # ensure a running event loop exists (Needed when used by Celery workers which may close the default one)
+        try:
+            loop = asyncio.get_event_loop()
+            if loop.is_closed():
+                loop = asyncio.new_event_loop()
+                asyncio.set_event_loop(loop)
+        except RuntimeError:
+            loop = asyncio.new_event_loop()
+            asyncio.set_event_loop(loop)
+
         # initiate the client
         self.client = TelegramClient(self.session_file, self.api_id, self.api_hash)
 
@@ -190,6 +201,9 @@ class TelethonExtractor(Extractor):
                             )
                         for i, om_url in enumerate(other_media_urls):
                             filename = self.download_from_url(om_url, f"{chat}_{group_id}_{i}")
+                            if not filename:
+                                logger.warning(f"Failed to download media from {om_url}")
+                                continue
                             result.add_media(Media(filename=filename), id=f"{group_id}_{i}")
 
                     filename_dest = os.path.join(self.tmp_dir, f"{chat}_{group_id}", str(mp.id))

src/auto_archiver/modules/twitter_api_extractor/twitter_api_extractor.py

@@ -114,6 +114,9 @@ class TwitterApiExtractor(Extractor):
                 logger.info(f"Found media {media}")
                 ext = mimetypes.guess_extension(mimetype)
                 media.filename = self.download_from_url(media.get("src"), f"{slugify(url)}_{i}{ext}")
+                if not media.filename:
+                    logger.warning(f"Failed to download media from {media.get('src')}")
+                    continue
                 result.add_media(media)
 
         result.set_content(

src/auto_archiver/utils/deletion_detection.py

@@ -64,7 +64,6 @@ class DeletionIndicators:
     # YouTube deletion indicators
     YOUTUBE = [
         "This video isn't available anymore",
-        "Video unavailable",
         "This video has been removed",
         "This video is no longer available",
         "This video is private",

src/auto_archiver/utils/misc.py

@@ -120,6 +120,9 @@ def ydl_entry_to_filename(ydl, entry: dict) -> str:
     directory = os.path.dirname(base_filename)  # '/get/path/to'
     basename = os.path.basename(base_filename)  # 'file'
     for f in os.listdir(directory):
+        # skip incomplete downloads left behind by yt-dlp
+        if f.endswith(".part"):
+            continue
         if (
             f.startswith(basename)
             or (entry_url and os.path.splitext(f)[0] in entry_url)

tests/enrichers/test_ghostarchive_enricher.py

@@ -0,0 +1,277 @@
+import pytest
+import requests
+import os
+from unittest.mock import MagicMock
+
+from auto_archiver.modules.ghostarchive_enricher.ghostarchive_enricher import GhostarchiveEnricher
+
+CI = os.getenv("GITHUB_ACTIONS", "") == "true"
+
+# sample HTML responses for mocking
+SEARCH_HTML_FOUND = """
+<html><body>
+<h1>Archives for https://example.com</h1>
+<table>
+<tr><td><a href="http://ghostarchive.org/archive/Abc12">https://example.com</a></td></tr>
+</table>
+</body></html>
+"""
+
+SEARCH_HTML_NOT_FOUND = """
+<html><body>
+<h1>Archives for https://example.com</h1>
+<p>Page 0 out of 0</p>
+<p>No archives for that site.</p>
+</body></html>
+"""
+
+SAVE_RESPONSE_HTML_WITH_LINK = """
+<html><body>
+<h1>Archive saved</h1>
+<a href="/archive/Xyz99">View archive</a>
+</body></html>
+"""
+
+ENRICHER_CONFIG = {
+    "timeout": 120,
+    "check_existing": True,
+    "proxy_http": None,
+    "proxy_https": None,
+}
+
+
+class TestGhostarchiveEnricher:
+    """Tests for Ghost Archive Enricher"""
+
+    @pytest.fixture(autouse=True)
+    def setup_enricher(self, setup_module):
+        self.enricher: GhostarchiveEnricher = setup_module("ghostarchive_enricher", ENRICHER_CONFIG)
+
+    def test_search_existing_found(self, mocker):
+        """When an existing archive is found, it should be returned."""
+        mock_response = mocker.Mock()
+        mock_response.status_code = 200
+        mock_response.text = SEARCH_HTML_FOUND
+        mocker.patch(
+            "auto_archiver.modules.ghostarchive_enricher.ghostarchive_enricher.requests.get", return_value=mock_response
+        )
+
+        result = self.enricher._search_existing("https://example.com")
+        assert result == "https://ghostarchive.org/archive/Abc12"
+
+    def test_search_existing_not_found(self, mocker):
+        """When no existing archive is found, None should be returned."""
+        mock_response = mocker.Mock()
+        mock_response.status_code = 200
+        mock_response.text = SEARCH_HTML_NOT_FOUND
+        mocker.patch(
+            "auto_archiver.modules.ghostarchive_enricher.ghostarchive_enricher.requests.get", return_value=mock_response
+        )
+
+        result = self.enricher._search_existing("https://example.com")
+        assert result is None
+
+    def test_search_existing_request_error(self, mocker):
+        """When search request fails, None should be returned."""
+        mocker.patch(
+            "auto_archiver.modules.ghostarchive_enricher.ghostarchive_enricher.requests.get",
+            side_effect=requests.exceptions.ConnectionError("connection failed"),
+        )
+
+        result = self.enricher._search_existing("https://example.com")
+        assert result is None
+
+    def test_search_existing_non_200(self, mocker):
+        """When search returns non-200, None should be returned."""
+        mock_response = mocker.Mock()
+        mock_response.status_code = 503
+        mocker.patch(
+            "auto_archiver.modules.ghostarchive_enricher.ghostarchive_enricher.requests.get", return_value=mock_response
+        )
+
+        result = self.enricher._search_existing("https://example.com")
+        assert result is None
+
+    def test_submit_url_success_redirect(self, mocker):
+        """Successful submission via headless browser should return archive URL."""
+        mock_sb = MagicMock()
+        mock_sb.get_current_url.return_value = "https://ghostarchive.org/archive/NewId1"
+        mock_sb.__enter__ = MagicMock(return_value=mock_sb)
+        mock_sb.__exit__ = MagicMock(return_value=False)
+
+        mocker.patch("auto_archiver.modules.ghostarchive_enricher.ghostarchive_enricher.SB", return_value=mock_sb)
+
+        result = self.enricher._submit_url("https://example.com")
+        assert result == "https://ghostarchive.org/archive/NewId1"
+        mock_sb.type.assert_called_once()
+        mock_sb.click.assert_called_once()
+
+    def test_submit_url_success_redirect_strips_query(self, mocker):
+        """Redirect URL query params should be stripped."""
+        mock_sb = MagicMock()
+        mock_sb.get_current_url.return_value = "https://ghostarchive.org/archive/NewId1?wr=false"
+        mock_sb.__enter__ = MagicMock(return_value=mock_sb)
+        mock_sb.__exit__ = MagicMock(return_value=False)
+
+        mocker.patch("auto_archiver.modules.ghostarchive_enricher.ghostarchive_enricher.SB", return_value=mock_sb)
+
+        result = self.enricher._submit_url("https://example.com")
+        assert result == "https://ghostarchive.org/archive/NewId1"
+
+    def test_submit_url_success_html_fallback(self, mocker):
+        """When browser doesn't redirect, should parse page source for archive link."""
+        mock_sb = MagicMock()
+        mock_sb.get_current_url.return_value = "https://ghostarchive.org/archive2"
+        mock_sb.get_page_source.return_value = SAVE_RESPONSE_HTML_WITH_LINK
+        mock_sb.__enter__ = MagicMock(return_value=mock_sb)
+        mock_sb.__exit__ = MagicMock(return_value=False)
+
+        # make timeout=0 so the polling loop exits immediately and falls through to HTML parsing
+        self.enricher.timeout = 0
+        mocker.patch("auto_archiver.modules.ghostarchive_enricher.ghostarchive_enricher.SB", return_value=mock_sb)
+
+        result = self.enricher._submit_url("https://example.com")
+        assert result == "https://ghostarchive.org/archive/Xyz99"
+
+    def test_submit_url_browser_error(self, mocker):
+        """Browser error during submission should return None."""
+        mocker.patch(
+            "auto_archiver.modules.ghostarchive_enricher.ghostarchive_enricher.SB",
+            side_effect=Exception("browser failed to start"),
+        )
+
+        result = self.enricher._submit_url("https://example.com")
+        assert result is None
+
+    def test_proxy_configuration(self, mocker):
+        """Proxies should be passed to search requests when configured."""
+        self.enricher.proxy_http = "http://proxy:8080"
+        self.enricher.proxy_https = "https://proxy:8443"
+
+        mock_get = mocker.patch(
+            "auto_archiver.modules.ghostarchive_enricher.ghostarchive_enricher.requests.get",
+        )
+        mock_response = mocker.Mock()
+        mock_response.status_code = 200
+        mock_response.text = SEARCH_HTML_FOUND
+        mock_get.return_value = mock_response
+
+        result = self.enricher._search_existing("https://example.com")
+
+        call_kwargs = mock_get.call_args
+        assert call_kwargs.kwargs.get("proxies") == {"http": "http://proxy:8080", "https": "https://proxy:8443"}
+        assert result is not None
+
+    def test_parse_archive_url_with_replay_links(self):
+        """Parser should ignore /replay/ links and only return /archive/ links."""
+        html = """
+        <html><body>
+        <a href="/archive/replay/w/id-abc/mp_/https://example.com">replay</a>
+        <a href="/archive/Valid1">valid</a>
+        </body></html>
+        """
+        result = self.enricher._parse_archive_url(html)
+        assert result == "https://ghostarchive.org/archive/Valid1"
+
+    def test_parse_archive_url_no_links(self):
+        """Parser should return None when no archive links found."""
+        html = "<html><body><p>No archive here</p></body></html>"
+        result = self.enricher._parse_archive_url(html)
+        assert result is None
+
+    def test_enrich_sets_ghostarchive_on_metadata(self, mocker, make_item):
+        """enrich() should set 'ghostarchive' key on the metadata object."""
+        mocker.patch.object(self.enricher, "_search_existing", return_value="https://ghostarchive.org/archive/Enr1")
+
+        item = make_item("https://example.com")
+        result = self.enricher.enrich(item)
+
+        assert result is True
+        assert item.get("ghostarchive") == "https://ghostarchive.org/archive/Enr1"
+
+    def test_enrich_skips_if_already_enriched(self, mocker, make_item):
+        """enrich() should skip if ghostarchive key is already set."""
+        mock_search = mocker.patch.object(self.enricher, "_search_existing")
+
+        item = make_item("https://example.com", ghostarchive="https://ghostarchive.org/archive/Old1")
+        result = self.enricher.enrich(item)
+
+        assert result is True
+        mock_search.assert_not_called()
+
+    def test_enrich_returns_false_on_failure(self, mocker, make_item):
+        """enrich() should return False when both search and submit fail."""
+        mocker.patch.object(self.enricher, "_search_existing", return_value=None)
+        mocker.patch.object(self.enricher, "_submit_url", return_value=None)
+
+        item = make_item("https://example.com")
+        result = self.enricher.enrich(item)
+
+        assert result is False
+
+    def test_enrich_skips_auth_wall(self, mocker, make_item):
+        """enrich() should skip URLs behind auth walls."""
+        mocker.patch(
+            "auto_archiver.modules.ghostarchive_enricher.ghostarchive_enricher.UrlUtil.is_auth_wall", return_value=True
+        )
+
+        item = make_item("https://example.com/login")
+        result = self.enricher.enrich(item)
+        assert result is False
+
+    def test_enrich_with_existing_archive(self, mocker, make_item):
+        """enrich() should use existing archive when check_existing is True."""
+        mocker.patch.object(self.enricher, "_search_existing", return_value="https://ghostarchive.org/archive/Exist1")
+        mock_submit = mocker.patch.object(self.enricher, "_submit_url")
+
+        item = make_item("https://example.com")
+        result = self.enricher.enrich(item)
+
+        assert result is True
+        assert item.get("ghostarchive") == "https://ghostarchive.org/archive/Exist1"
+        mock_submit.assert_not_called()
+
+    def test_enrich_submits_when_no_existing(self, mocker, make_item):
+        """enrich() should submit URL when no existing archive found."""
+        mocker.patch.object(self.enricher, "_search_existing", return_value=None)
+        mocker.patch.object(self.enricher, "_submit_url", return_value="https://ghostarchive.org/archive/New42")
+
+        item = make_item("https://example.com")
+        result = self.enricher.enrich(item)
+
+        assert result is True
+        assert item.get("ghostarchive") == "https://ghostarchive.org/archive/New42"
+
+    def test_enrich_skips_check_existing_when_disabled(self, mocker, make_item):
+        """enrich() should skip search when check_existing is False."""
+        self.enricher.check_existing = False
+        mock_search = mocker.patch.object(self.enricher, "_search_existing")
+        mocker.patch.object(self.enricher, "_submit_url", return_value="https://ghostarchive.org/archive/Direct1")
+
+        item = make_item("https://example.com")
+        result = self.enricher.enrich(item)
+
+        assert result is True
+        mock_search.assert_not_called()
+
+    @pytest.mark.download
+    def test_real_search_existing(self, setup_module):
+        """Integration test: search for an existing archive on Ghost Archive."""
+        enricher = setup_module("ghostarchive_enricher", ENRICHER_CONFIG)
+        # example.com is commonly archived
+        result = enricher._search_existing("https://example.com")
+        # we just check it doesn't crash; result may or may not be found
+        assert result is None or result.startswith("https://ghostarchive.org/archive/")
+
+    @pytest.mark.download
+    @pytest.mark.skipif(CI, reason="Avoid submitting a real task on every CI run")
+    def test_real_submit_example_com(self, setup_module, make_item):
+        """Integration test: submit example.com to Ghost Archive and verify enrichment."""
+        enricher = setup_module("ghostarchive_enricher", ENRICHER_CONFIG)
+        item = make_item("https://example.com")
+        result = enricher.enrich(item)
+
+        assert result is True
+        archive_url = item.get("ghostarchive")
+        assert archive_url is not None
+        assert archive_url.startswith("https://ghostarchive.org/archive/")

tests/extractors/test_antibot_extractor_enricher.py

@@ -53,6 +53,7 @@ class TestAntibotExtractorEnricher(TestExtractorBase):
     }
 
     @pytest.mark.download
+    @pytest.mark.flaky(reruns=2, reruns_delay=5)
     @pytest.mark.parametrize(
         "url,in_title,in_text,image_count,video_count,skip_ci",
         [
@@ -128,6 +129,7 @@ class TestAntibotExtractorEnricher(TestExtractorBase):
         item = make_item(url)
         result = self.extractor.download(item)
 
+        assert result, f"download() returned {result!r} — Selenium may have failed (e.g., window close timeout)"
         assert result.status == "antibot", "Expected status to be 'antibot'"
 
         # Check title contains all required words (case-insensitive)

tests/extractors/test_telethon_extractor.py

@@ -1,3 +1,4 @@
+import asyncio
 import os
 from datetime import date
 
@@ -60,3 +61,53 @@ def test_valid_url_regex(url, expected, get_lazy_module):
 def test_invite_pattern_regex(invite, expected, get_lazy_module):
     match = TelethonExtractor.invite_pattern.search(invite)
     assert bool(match) == expected
+
+
+def test_setup_with_closed_event_loop(get_lazy_module, tmp_path, mocker):
+    """
+    Simulate the Celery worker scenario where the asyncio event loop is closed
+    before setup() runs. The fix should create a new event loop so that
+    TelegramClient.start() does not raise 'Event loop is closed'.
+    """
+    # create a session file so setup doesn't fail on missing file
+    session_file = tmp_path / "test.session"
+    session_file.touch()
+
+    # close the current event loop to simulate a Celery worker environment
+    loop = asyncio.new_event_loop()
+    asyncio.set_event_loop(loop)
+    loop.close()
+
+    lazy_module = get_lazy_module("telethon_extractor")
+    module = lazy_module.load(
+        {"telethon_extractor": {"session_file": str(session_file), "api_id": 123, "api_hash": "ABC"}}
+    )
+
+    # setup should have succeeded and a new open event loop should exist
+    new_loop = asyncio.get_event_loop()
+    assert not new_loop.is_closed()
+    assert module.client is not None
+
+
+def test_setup_with_no_event_loop(get_lazy_module, tmp_path, mocker):
+    """
+    Simulate the scenario where there is no current event loop at all
+    (e.g. running in a non-main thread). The fix should create one.
+    """
+    session_file = tmp_path / "test.session"
+    session_file.touch()
+
+    # Remove the current event loop entirely
+    # In Python 3.12+, get_event_loop() in a non-main thread raises RuntimeError
+    mocker.patch("asyncio.get_event_loop", side_effect=RuntimeError("no current event loop"))
+    new_loop_mock = mocker.MagicMock()
+    new_loop_mock.is_closed.return_value = False
+    mocker.patch("asyncio.new_event_loop", return_value=new_loop_mock)
+    set_loop = mocker.patch("asyncio.set_event_loop")
+
+    lazy_module = get_lazy_module("telethon_extractor")
+    lazy_module.load({"telethon_extractor": {"session_file": str(session_file), "api_id": 123, "api_hash": "ABC"}})
+
+    # a new event loop should have been created and set
+    asyncio.new_event_loop.assert_called_once()
+    set_loop.assert_called_once_with(new_loop_mock)

tests/test_metadata.py

@@ -86,6 +86,22 @@ def test_media_management(basic_metadata, media_file):
     assert basic_metadata.get_media_by_id("m1") == media1
 
 
+def test_remove_duplicate_skips_missing_files(basic_metadata, media_file, tmp_path):
+    """Missing files should be dropped instead of crashing with FileNotFoundError."""
+    real_file = tmp_path / "exists.txt"
+    real_file.write_text("content")
+    valid = media_file(filename=str(real_file), hash_value="abc")
+    missing = media_file(filename="/nonexistent/path/gone.mp4")
+
+    basic_metadata.add_media(valid, "valid")
+    basic_metadata.add_media(missing, "missing")
+
+    assert len(basic_metadata.media) == 2
+    basic_metadata.remove_duplicate_media_by_hash()
+    assert len(basic_metadata.media) == 1
+    assert basic_metadata.get_media_by_id("valid") == valid
+
+
 def test_success():
     m = Metadata()
     assert not m.is_success()

tests/test_none_filename_handling.py

@@ -0,0 +1,259 @@
+"""
+Tests for handling Media objects with None filename.
+
+When download_from_url fails, it returns None. Various enrichers and
+the metadata deduplication logic must gracefully handle Media objects
+where filename is None, rather than crashing with TypeError.
+"""
+
+from datetime import datetime, timezone
+from unittest.mock import MagicMock
+
+import pytest
+
+from auto_archiver.core.metadata import Metadata, Media
+from auto_archiver.modules.hash_enricher import HashEnricher
+from auto_archiver.modules.meta_enricher import MetaEnricher
+
+
+# ── HashEnricher ──────────────────────────────────────────────────────
+
+
+class TestHashEnricherNoneFilename:
+    """hash_enricher should skip media with None filename without crashing."""
+
+    @pytest.fixture(autouse=True)
+    def setup(self, setup_module):
+        self.enricher = setup_module(HashEnricher, {"algorithm": "SHA-256", "chunksize": 100})
+
+    def test_skips_none_filename(self):
+        m = Metadata().set_url("https://example.com")
+        media = Media(filename=None)
+        media.set("src", "https://example.com/video.mp4")
+        m.add_media(media)
+
+        # Should not raise
+        self.enricher.enrich(m)
+        # No hash should be set
+        assert m.media[0].get("hash") is None
+
+    def test_hashes_valid_skips_none(self, tmp_path):
+        """Mix of valid and None-filename media: only valid ones get hashed."""
+        valid_file = tmp_path / "test.txt"
+        valid_file.write_text("hello world")
+
+        m = Metadata().set_url("https://example.com")
+        m.add_media(Media(filename=str(valid_file)))
+        m.add_media(Media(filename=None))
+
+        self.enricher.enrich(m)
+
+        assert m.media[0].get("hash") is not None
+        assert m.media[1].get("hash") is None
+
+    def test_all_none_filenames(self):
+        """All media have None filename – enricher should not crash."""
+        m = Metadata().set_url("https://example.com")
+        m.add_media(Media(filename=None))
+        m.add_media(Media(filename=None))
+
+        self.enricher.enrich(m)
+
+        assert len(m.media) == 2
+        for media in m.media:
+            assert media.get("hash") is None
+
+
+# ── MetaEnricher ──────────────────────────────────────────────────────
+
+
+class TestMetaEnricherNoneFilename:
+    """meta_enricher should skip media with None filename without crashing."""
+
+    @pytest.fixture(autouse=True)
+    def setup(self, setup_module):
+        self.enricher = setup_module(MetaEnricher, {})
+
+    def test_skips_none_filename(self):
+        m = Metadata().set_url("https://example.com")
+        m.set("_processed_at", datetime.now(timezone.utc))
+        media = Media(filename=None)
+        media.set("src", "https://example.com/video.mp4")
+        m.add_media(media)
+
+        # Should not raise
+        self.enricher.enrich(m)
+        assert m.get("total_bytes") == 0
+
+    def test_sizes_valid_skips_none(self, tmp_path):
+        """Mix of valid and None-filename media: only valid ones get sized."""
+        valid_file = tmp_path / "test.txt"
+        valid_file.write_text("A" * 500)
+
+        m = Metadata().set_url("https://example.com")
+        m.set("_processed_at", datetime.now(timezone.utc))
+        m.add_media(Media(filename=str(valid_file)))
+        m.add_media(Media(filename=None))
+
+        self.enricher.enrich(m)
+
+        assert m.media[0].get("bytes") == 500
+        assert m.media[1].get("bytes") is None
+        assert m.get("total_bytes") == 500
+
+
+# ── Metadata.remove_duplicate_media_by_hash ───────────────────────────
+
+
+class TestRemoveDuplicateMediaNoneFilename:
+    """remove_duplicate_media_by_hash should keep media with None filename."""
+
+    def test_none_filename_kept(self):
+        m = Metadata().set_url("https://example.com")
+        none_media = Media(filename=None)
+        none_media.set("src", "https://example.com/video.mp4")
+        m.add_media(none_media)
+
+        m.remove_duplicate_media_by_hash()
+
+        assert len(m.media) == 1
+        assert m.media[0].filename is None
+
+    def test_none_and_valid_mixed(self, tmp_path):
+        """None-filename media is kept alongside valid-filename media."""
+        valid_file = tmp_path / "test.txt"
+        valid_file.write_text("content")
+
+        m = Metadata().set_url("https://example.com")
+        m.add_media(Media(filename=str(valid_file)))
+        none_media = Media(filename=None)
+        none_media.set("src", "https://example.com/video.mp4")
+        m.add_media(none_media)
+
+        m.remove_duplicate_media_by_hash()
+
+        assert len(m.media) == 2
+
+    def test_multiple_none_filename_all_kept(self):
+        """Multiple None-filename media are all kept (can't deduplicate without file)."""
+        m = Metadata().set_url("https://example.com")
+        m.add_media(Media(filename=None))
+        m.add_media(Media(filename=None))
+
+        m.remove_duplicate_media_by_hash()
+
+        assert len(m.media) == 2
+
+
+# ── Twitter dropin create_metadata ────────────────────────────────────
+
+
+class TestTwitterDropinNoneFilename:
+    """Twitter dropin should skip media when download_from_url returns None."""
+
+    @pytest.fixture
+    def twitter_dropin(self):
+        from auto_archiver.modules.generic_extractor.twitter import Twitter
+
+        return Twitter()
+
+    def test_create_metadata_skips_failed_photo_download(self, twitter_dropin):
+        """When download_from_url returns None for a photo, it's not added to media."""
+        tweet = {
+            "user": {"name": "Test User"},
+            "created_at": "Sun Feb 08 18:45:00 +0000 2026",
+            "full_text": "Test tweet with photo",
+            "entities": {
+                "media": [
+                    {"type": "photo", "media_url_https": "https://pbs.twimg.com/media/test.jpg"},
+                ]
+            },
+        }
+
+        mock_archiver = MagicMock()
+        mock_archiver.download_from_url.return_value = None  # simulate failed download
+
+        result = twitter_dropin.create_metadata(tweet, None, mock_archiver, "https://x.com/test/status/123")
+
+        # The result should have no media since the download failed
+        assert len(result.media) == 0
+
+    def test_create_metadata_skips_failed_video_download(self, twitter_dropin):
+        """When download_from_url returns None for a video, it's not added to media."""
+        tweet = {
+            "user": {"name": "Test User"},
+            "created_at": "Sun Feb 08 18:45:00 +0000 2026",
+            "full_text": "Test tweet with video",
+            "entities": {
+                "media": [
+                    {
+                        "type": "video",
+                        "video_info": {
+                            "variants": [
+                                {
+                                    "url": "https://video.twimg.com/vid/1280x720/test.mp4",
+                                    "content_type": "video/mp4",
+                                },
+                            ]
+                        },
+                    },
+                ]
+            },
+        }
+
+        mock_archiver = MagicMock()
+        mock_archiver.download_from_url.return_value = None
+
+        result = twitter_dropin.create_metadata(tweet, None, mock_archiver, "https://x.com/test/status/123")
+
+        assert len(result.media) == 0
+
+    def test_create_metadata_keeps_successful_download(self, twitter_dropin, tmp_path):
+        """When download_from_url succeeds, media is added."""
+        tweet = {
+            "user": {"name": "Test User"},
+            "created_at": "Sun Feb 08 18:45:00 +0000 2026",
+            "full_text": "Test tweet with photo",
+            "entities": {
+                "media": [
+                    {"type": "photo", "media_url_https": "https://pbs.twimg.com/media/test.jpg"},
+                ]
+            },
+        }
+
+        test_file = tmp_path / "test.jpg"
+        test_file.write_text("fake image data")
+
+        mock_archiver = MagicMock()
+        mock_archiver.download_from_url.return_value = str(test_file)
+
+        result = twitter_dropin.create_metadata(tweet, None, mock_archiver, "https://x.com/test/status/123")
+
+        assert len(result.media) == 1
+        assert result.media[0].filename == str(test_file)
+
+    def test_create_metadata_mixed_downloads(self, twitter_dropin, tmp_path):
+        """One download succeeds, one fails – only successful one is kept."""
+        tweet = {
+            "user": {"name": "Test User"},
+            "created_at": "Sun Feb 08 18:45:00 +0000 2026",
+            "full_text": "Test tweet with two photos",
+            "entities": {
+                "media": [
+                    {"type": "photo", "media_url_https": "https://pbs.twimg.com/media/test1.jpg"},
+                    {"type": "photo", "media_url_https": "https://pbs.twimg.com/media/test2.jpg"},
+                ]
+            },
+        }
+
+        test_file = tmp_path / "test1.jpg"
+        test_file.write_text("fake image data")
+
+        mock_archiver = MagicMock()
+        # First call succeeds, second fails
+        mock_archiver.download_from_url.side_effect = [str(test_file), None]
+
+        result = twitter_dropin.create_metadata(tweet, None, mock_archiver, "https://x.com/test/status/123")
+
+        assert len(result.media) == 1
+        assert result.media[0].filename == str(test_file)

tests/test_orchestrator.py

@@ -1,5 +1,6 @@
 import pytest
 from argparse import ArgumentParser, ArgumentTypeError
+from requests.exceptions import SSLError
 from auto_archiver.core.orchestrator import ArchivingOrchestrator
 from auto_archiver.version import __version__
 from auto_archiver.core.config import read_yaml, store_yaml
@@ -256,3 +257,34 @@ def test_load_failed_extractor_cleanup(test_args, mocker, caplog):
     assert "Error during setup of modules: Test exception" in caplog.text
     # make sure the 'cleanup' is called
     assert "cleanup" in caplog.text
+
+
+def test_check_for_updates_ssl_error(orchestrator, mocker):
+    """check_for_updates should not raise when the HTTP request fails."""
+    mocker.patch(
+        "auto_archiver.core.orchestrator.requests.get",
+        side_effect=SSLError("SSL handshake failed"),
+    )
+    # should not raise
+    orchestrator.check_for_updates()
+
+
+def test_check_for_updates_timeout(orchestrator, mocker):
+    """check_for_updates should not raise on connection timeout."""
+    from requests.exceptions import ConnectionError
+
+    mocker.patch(
+        "auto_archiver.core.orchestrator.requests.get",
+        side_effect=ConnectionError("Connection refused"),
+    )
+    orchestrator.check_for_updates()
+
+
+def test_check_for_updates_new_version_available(orchestrator, mocker):
+    """check_for_updates should not raise when a newer version exists."""
+    mocker.patch(
+        "auto_archiver.core.orchestrator.requests.get",
+        return_value=mocker.Mock(json=lambda: {"info": {"version": "99.0.0"}}),
+    )
+    # should complete without error
+    orchestrator.check_for_updates()

tests/utils/test_misc.py

@@ -14,6 +14,7 @@ from auto_archiver.utils.misc import (
     calculate_file_hash,
     random_str,
     get_timestamp,
+    ydl_entry_to_filename,
 )
 
 
@@ -139,3 +140,47 @@ class TestMiscUtils:
 
     def test_invalid_timestamp_returns_none(self):
         assert get_timestamp("invalid-date") is None
+
+
+class TestYdlEntryToFilename:
+    """Tests for ydl_entry_to_filename, especially .part file filtering."""
+
+    def _make_mock_ydl(self, prepared_filename):
+        class MockYDL:
+            def prepare_filename(self, entry):
+                return prepared_filename
+
+        return MockYDL()
+
+    def test_returns_exact_file_if_exists(self, tmp_path):
+        video = tmp_path / "video.mp4"
+        video.write_bytes(b"data")
+        ydl = self._make_mock_ydl(str(video))
+        assert ydl_entry_to_filename(ydl, {}) == str(video)
+
+    def test_skips_part_file_returns_complete(self, tmp_path):
+        """Simulates yt-dlp leaving a .part file from a failed format
+        while a complete .webm exists."""
+        (tmp_path / "f5U3IKfoSYs.f399.mp4.part").write_bytes(b"incomplete")
+        webm = tmp_path / "f5U3IKfoSYs.webm"
+        webm.write_bytes(b"complete video")
+
+        # ydl.prepare_filename returns the expected .mp4 which doesn't exist
+        ydl = self._make_mock_ydl(str(tmp_path / "f5U3IKfoSYs.mp4"))
+        result = ydl_entry_to_filename(ydl, {})
+
+        assert result == str(webm)
+        assert not result.endswith(".part")
+
+    def test_skips_part_file_returns_false_if_no_other_match(self, tmp_path):
+        """Only a .part file exists — should return False."""
+        (tmp_path / "video.f399.mp4.part").write_bytes(b"incomplete")
+
+        ydl = self._make_mock_ydl(str(tmp_path / "video.mp4"))
+        assert ydl_entry_to_filename(ydl, {}) is False
+
+    def test_returns_false_when_no_files_match(self, tmp_path):
+        (tmp_path / "unrelated.txt").write_bytes(b"data")
+
+        ydl = self._make_mock_ydl(str(tmp_path / "video.mp4"))
+        assert ydl_entry_to_filename(ydl, {}) is False