Files
siftlode/backend/tests/test_feed_cursor.py
T
peter b1832afd18 style: apply ruff format across backend + scripts (line-length 100)
Mechanical, whole-tree `ruff format` pass — no behaviour change. Recorded in
.git-blame-ignore-revs (next commit) so git blame skips it.
2026-08-23 07:43:06 +02:00

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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"] == []