Files
siftlode/backend/tests/test_feed_cursor.py
T
peter c0cda545e0 test(feed): cover malformed-cursor 400 + from-None on the re-raise
Second-round /code-review high follow-ups:

- test_feed_cursor.py: GET /api/feed?cursor=<garbage> must return HTTP 400
  (not 500) — locks the cursor-error path the refactor split across modules
  (feedquery.decode_cursor raises ValueError, get_feed translates to 400).
  Plus a no-cursor 200 sanity check. DB lane.
- get_feed: `raise HTTPException(...) from None` so the expected bad-input
  ValueError isn't chained as __context__.

DB-lane suite 289 passed / 2 skipped; ruff clean.
2026-08-17 18:46:48 +02:00

46 lines
1.8 KiB
Python

"""Feed cursor endpoint: a malformed ?cursor= must be a clean HTTP 400, not a 500.
Locks the refactor that split cursor handling across modules — feedquery.decode_cursor raises a
plain ValueError and routes/feed.get_feed translates it to 400 — so a future regression (a dropped
try/except, or a new decode_cursor caller without its own catch) turns the 400 back into a 500 and
fails right here. DB lane (`db` fixture) — skipped without Postgres.
"""
from fastapi.testclient import TestClient
import app.state as state
from app.auth import current_user
from app.db import get_db
from app.main import app
from app.models import User
def _get(db, user, monkeypatch, path):
monkeypatch.setattr(state, "_configured_cache", True) # the request gate 503s an unconfigured app
app.dependency_overrides[get_db] = lambda: db
app.dependency_overrides[current_user] = lambda: user
try:
client = TestClient(app) # no context manager: skip lifespan (scheduler/HLS sweep)
return client.get(path)
finally:
app.dependency_overrides.clear()
def test_malformed_feed_cursor_returns_400(db, monkeypatch):
user = User(email="feedcursor@example.com")
db.add(user)
db.commit()
resp = _get(db, user, monkeypatch, "/api/feed?cursor=not-a-real-cursor")
assert resp.status_code == 400
assert resp.json()["detail"] == "Invalid feed cursor"
def test_feed_without_cursor_is_200(db, monkeypatch):
# Sanity: the same endpoint without a cursor is a normal 200 (proves the 400 above is the
# cursor path, not a globally-broken request). A fresh user has no subscriptions → empty feed.
user = User(email="feednocursor@example.com")
db.add(user)
db.commit()
resp = _get(db, user, monkeypatch, "/api/feed")
assert resp.status_code == 200
assert resp.json()["items"] == []