Files
siftlode/backend/tests/test_youtube_refusals.py
T
peter df4a79a1f1 fix(sync): an empty answer the remote's own count contradicts is not believed, one level down
E32 review round 1 (B1, B2, B3, B8).

- Plex watch reconcile: a section the server SAYS is empty (totalSize 0, nothing listed) is a
  complete listing. It read as "cut short" forever, so one empty library stopped un-watches from
  ever syncing. A listing with no total at all stays incomplete (the client now returns None for
  it instead of 0), and a whole scan that listed nothing still clears nothing. Tests now cover
  completeness across two sections, both orders.
- Plex collections: no members from a collection whose listing counts some (childCount) keeps
  the membership we hold, in the full sync and in the targeted resync after a write.
- YouTube playlists: no items for a playlist whose listing counts some (itemCount) keeps the
  mirror in the bulk pull, and is refused as retryable in "reset to YouTube" and in the push
  plan/merge, where it read as "YouTube deleted them all". The rule sits beside vanished().
- A playlist deleted on YouTube answered "reconnect your account"; it now says it is gone
  (errors.youtube.gone, HU+EN).
- The pure 3-way merge moved to sync/playlist_merge.py; playlists.py is back under 800 lines and
  off the size list.
2026-10-04 02:13:53 +02:00

117 lines
5.0 KiB
Python

"""An action YouTube refuses answers a 422 the UI can translate — never a raw 500 — and says what the
user can do about it (`routes/_common.youtube_refusal`). E9 F1: the two manual syncs had no handler
at all, so a quota or transport failure opened the blocking "Server error" dialog."""
from types import SimpleNamespace
import httpx
import pytest
from app.auth import has_read_scope
from app.models import OAuthToken
from app.youtube import client as yt
from app.youtube.client import YouTubeError, refusal_reason
@pytest.mark.parametrize(
("exc", "reason"),
[
(YouTubeError("m", reason="quotaExceeded", path="playlists"), "quota"),
(YouTubeError("m", reason="backendError,dailyLimitExceeded", path="videos"), "quota"),
(YouTubeError("m", reason="invalid_grant", path="oauth2/token"), "reconnect"),
# The token endpoint failing any other way leaves the grant alone — and a reconnect would
# not help: Google's bad minute, a rate limit, a misconfigured client.
(YouTubeError("m", reason="backend_error", path="oauth2/token"), "unavailable"),
(YouTubeError("m", reason="<unparseable>", path="oauth2/token"), "unavailable"),
(YouTubeError("m", reason="invalid_client", path="oauth2/token"), "unavailable"),
(YouTubeError("No refresh token; user must re-authenticate"), "reconnect"),
(YouTubeError("m", reason="transport"), "unavailable"),
(YouTubeError("m", reason="backendError", path="subscriptions"), "unavailable"),
# A playlist deleted on YouTube: neither a retry nor a reconnect helps (it said "reconnect").
(YouTubeError("m", reason="playlistNotFound", path="playlists"), "gone"),
(YouTubeError("m", reason="emptyAnswer", path="playlistItems"), "unavailable"),
],
)
def test_a_failure_is_sorted_by_what_the_user_can_do(exc, reason):
assert refusal_reason(exc) == reason
@pytest.mark.parametrize(
("route", "target"),
[
("/api/sync/subscriptions", "app.routes.sync.import_subscriptions"),
("/api/playlists/sync-youtube", "app.routes.playlists.pull_user_playlists"),
],
)
def test_a_manual_sync_youtube_refuses_is_a_422_not_a_500(
db, as_user, make_user, monkeypatch, route, target
):
user = make_user()
db.commit()
module, name = target.rsplit(".", 1)
def refused(*a, **k):
raise YouTubeError("GET subscriptions -> 403: quotaExceeded", reason="quotaExceeded")
monkeypatch.setattr(f"{module}.has_read_scope", lambda u: True)
monkeypatch.setattr(f"{module}.{name}", refused)
r = as_user(user).post(route)
assert r.status_code == 422
assert r.json()["detail"] == {"code": "youtube", "reason": "quota"}
def test_a_revoked_grant_is_forgotten_so_the_account_can_reconnect(db, make_user, monkeypatch):
"""Google's `invalid_grant` is final. Kept, the grant read as live in Settings — with no connect
button — while every call failed; cleared, the connect button comes back."""
user = make_user()
db.add(
OAuthToken(
user_id=user.id,
refresh_token_enc="x",
scopes="openid https://www.googleapis.com/auth/youtube.readonly",
)
)
db.commit()
db.refresh(user)
assert has_read_scope(user)
resp = httpx.Response(
400,
json={"error": "invalid_grant", "error_description": "Token has been expired or revoked."},
request=httpx.Request("POST", yt.GOOGLE_TOKEN_URL),
)
c = yt.YouTubeClient.__new__(yt.YouTubeClient) # no HTTP client: `_send` is the stub
c.db, c.user = db, user
monkeypatch.setattr(yt, "decrypt", lambda value: "a-refresh-token")
monkeypatch.setattr(yt.sysconfig, "get_str", lambda d, key: "")
monkeypatch.setattr(c, "_send", lambda *a, **k: resp)
with pytest.raises(YouTubeError) as caught:
c._access_token()
assert refusal_reason(caught.value) == "reconnect"
db.expire_all()
assert not has_read_scope(db.get(type(user), user.id))
def test_any_other_token_refusal_keeps_the_grant(monkeypatch):
"""Only `invalid_grant` is final: a 5xx from the token endpoint is Google having a bad minute —
and the user is told to try again, not to reconnect an account that still reads as connected."""
resp = httpx.Response(
503, json={"error": "backend_error"}, request=httpx.Request("POST", yt.GOOGLE_TOKEN_URL)
)
tok = SimpleNamespace(access_token=None, expiry=None, refresh_token_enc="x", scopes="s")
c = yt.YouTubeClient.__new__(yt.YouTubeClient)
c.db = SimpleNamespace(add=lambda o: None, commit=lambda: None)
c.user = SimpleNamespace(id=1, token=tok)
monkeypatch.setattr(yt, "decrypt_optional", lambda value: None)
monkeypatch.setattr(yt, "decrypt", lambda value: "a-refresh-token")
monkeypatch.setattr(yt.sysconfig, "get_str", lambda d, key: "")
monkeypatch.setattr(c, "_send", lambda *a, **k: resp)
with pytest.raises(YouTubeError) as caught:
c._access_token()
assert tok.scopes == "s"
assert refusal_reason(caught.value) == "unavailable"