test(cppa_youtube_script_tracker): expand coverage for services, phases, fetcher, and failure classification

[snowfox1003]

Summary

Adds and extends tests for cppa_youtube_script_tracker so services, management command phases, YouTube Data API fetcher paths, and classify_failure behavior are covered without real network or yt-dlp runs (mocks/stubs only).

Scope

• Services: sparse metadata defaults, unparseable datetime handling, channel title not cleared by empty update.
• Command: Phase 2/3 failure paths (download_vtt None/exception), _persist_fetched_video / _process_queue error paths, transcript enrichment edge cases, Pinecone skip paths, stdout messaging, dry-run sync_pinecone.
• Fetcher: pagination (nextPageToken), thin/malformed API payloads, dedupe, search None break.
• Failure classification: documents current classify_failure mappings for ValueError, ImportError, QuotaExceededError, and googleapiclient.errors.HttpError (UNKNOWN) per existing core/errors.py.

How tested

• pytest cppa_youtube_script_tracker/tests/
• Full suite with coverage gate (same as CI).

Notes

• No production behavior changes; tests only.
• Eval / ticket: [link or ID]

Checklist

• No real YouTube API calls or live yt-dlp in tests
• CI green (including --cov-fail-under=90)

Closes #185

Summary by CodeRabbit

• Tests
  • Added comprehensive tests for error classification, data fetching/pagination, video detail handling, and management command flows (including dry-run, transcript/persistence edge cases, queue parsing, logging, and skip-counting).
  • Added DB tests ensuring service-layer defaults and resilient handling of missing or malformed metadata.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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Configuration used: defaults

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📥 Commits

Reviewing files that changed from the base of the PR and between c2f65e3 and 725f7d1.

📒 Files selected for processing (1)

• cppa_youtube_script_tracker/tests/test_run_command.py

🚧 Files skipped from review as they are similar to previous changes (1)

• cppa_youtube_script_tracker/tests/test_run_command.py

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📝 Walkthrough

Walkthrough

Adds new pytest coverage across the YouTube tracker: exception classification, fetcher query/formatting/pagination behavior, service persistence defaults and datetime parsing, and extensive management-command flow and error-path tests.

Changes

YouTube Tracker Test Coverage

Layer / File(s)	Summary
Error classification tests cppa_youtube_script_tracker/tests/test_failure_classification.py	New tests for classify_failure exception categorization and a _FakeResp helper; verifies ValueError (missing API key) => VALIDATION, and ImportError, QuotaExceededError, HttpError => UNKNOWN.
Data fetching and query processing cppa_youtube_script_tracker/tests/test_fetcher.py	Adds tests: query deduplication (_build_queries), _fetch_search_page param propagation (pageToken, channelId), _format_video_data defaults when fields missing, _process_one_channel_query pagination, empty-id filtering, non-video item handling, and early exit when search returns None.
Service layer persistence defaults cppa_youtube_script_tracker/tests/test_services.py	DB tests for get_or_create_video/get_or_create_channel: sparse metadata defaulting (empty strings, zero duration, None for counts/datetimes), unparseable datetimes become None, and empty channel title doesn't clear existing title.
Management command workflows and error handling cppa_youtube_script_tracker/tests/test_run_command.py	Extensive command tests: import of _persist_fetched_video; dry-run pinecone skip; phase-3 transcript failure cases; persistence/queue exception handling preserving queue JSON and counting skipped items; speaker enrichment no-ops and warning paths; stdout phase messaging; pinecone sync edge cases and exception logging; phase error propagation; tag blank filtering; queue parse error logging; counters and validation-error handling.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Possibly related issues

• Add Test Coverage for YouTube Tracker #185: Adds test coverage for the YouTube tracker and related acceptance criteria.

Possibly related PRs

• cppalliance/boost-data-collector#196: Related work touching classify_failure and HTTP error classification.

Suggested labels

enhancement

Suggested reviewers

• wpak-ai

Poem

🐇 A rabbit hops through tests at night,

mocking APIs until they’re right.
Defaults set and errors penned,
Each flaky path gets one more friend.
Hooray — the tracker sleeps well tonight.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 4.17% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The PR title directly and specifically describes the main change: expanding test coverage for four key modules (services, phases, fetcher, and failure classification) in the cppa_youtube_script_tracker.
Linked Issues check	✅ Passed	The PR comprehensively addresses all coding objectives from issue #185: test files created under cppa_youtube_script_tracker/tests/ covering service layer, management command phases, fetcher, and failure classification; all external dependencies mocked; edge cases covered; no production behavior changes.
Out of Scope Changes check	✅ Passed	All changes are strictly test-only additions (four new test modules and extensions to existing tests). No production code modifications or scope creep outside the linked issue objectives are present.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

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[coderabbitai]

Actionable comments posted: 1

🧹 Nitpick comments (1)

cppa_youtube_script_tracker/tests/test_run_command.py (1)

464-477: ⚡ Quick win

Add an explicit assertion for the “resolve_speakers returns empty” path.

Right now this test only verifies no exception. Add a before/after link count assertion so regressions in link creation are caught.

Proposed enhancement

 `@pytest.mark.django_db`
 def test_enrich_speakers_from_transcript_resolve_empty(monkeypatch, tmp_path):
@@
     tr = tmp_path / "some.vtt"
     tr.write_text("WEBVTT\n\nnote\n", encoding="utf-8")
     monkeypatch.setattr(f"{_CMD}.resolve_speakers", lambda **_k: [])
+    from cppa_youtube_script_tracker.models import YouTubeVideoSpeaker
+    before = YouTubeVideoSpeaker.objects.filter(video=video).count()

     _enrich_speakers_from_transcript(video, str(tr))
+    assert YouTubeVideoSpeaker.objects.filter(video=video).count() == before

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@cppa_youtube_script_tracker/tests/test_run_command.py` around lines 464 -
477, The test test_enrich_speakers_from_transcript_resolve_empty should assert
that no new speaker links are created when resolve_speakers returns an empty
list: record the initial count of any related link model (e.g., count of
speaker/video links or YouTubeVideo.speakers relation) before calling
_enrich_speakers_from_transcript(video, str(tr)), then call the function and
assert the count is unchanged afterwards; reference the test name, the
monkeypatched resolve_speakers, and the target function
_enrich_speakers_from_transcript to locate where to add the before/after
assertions.

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@cppa_youtube_script_tracker/tests/test_run_command.py`:
- Around line 579-590: The test assigns the return tuple from _persist_video to
a variable named created that is never used, causing RUF059; update the
assignment to use a throwaway name like _created or _ (e.g., change "created,
skipped = _persist_video(...)" to "_created, skipped = _persist_video(...)" or
"_, skipped = _persist_video(...)" ) so the unused value is ignored while
leaving the call to _persist_video and subsequent assertion on skipped
unchanged.

---

Nitpick comments:
In `@cppa_youtube_script_tracker/tests/test_run_command.py`:
- Around line 464-477: The test
test_enrich_speakers_from_transcript_resolve_empty should assert that no new
speaker links are created when resolve_speakers returns an empty list: record
the initial count of any related link model (e.g., count of speaker/video links
or YouTubeVideo.speakers relation) before calling
_enrich_speakers_from_transcript(video, str(tr)), then call the function and
assert the count is unchanged afterwards; reference the test name, the
monkeypatched resolve_speakers, and the target function
_enrich_speakers_from_transcript to locate where to add the before/after
assertions.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 7f162c43-0135-420b-a1d2-fb684d6ad17f

📥 Commits

Reviewing files that changed from the base of the PR and between 4df863f and c2f65e3.

📒 Files selected for processing (4)

• cppa_youtube_script_tracker/tests/test_failure_classification.py
• cppa_youtube_script_tracker/tests/test_fetcher.py
• cppa_youtube_script_tracker/tests/test_run_command.py
• cppa_youtube_script_tracker/tests/test_services.py