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`AURUM_CORS_ORIGINS` defaults to `*`, and the middleware was configured with
`allow_credentials=True`. Starlette does not answer that combination with a
literal `*` — it echoes back whatever `Origin` the caller sent and adds
`Access-Control-Allow-Credentials: true`, so any page open in the same
browser can call the instance, with the user's Basic Auth attached, and read
the response:
GET /api/accounts Origin: https://evil.example
-> Access-Control-Allow-Origin: https://evil.example
Access-Control-Allow-Credentials: true
That undercuts the README's advice that leaving Basic Auth off is fine while
the instance is only reachable from localhost: reachable-from-localhost
includes every website the user visits.
Nothing in the shipped setup is cross-origin. Compose serves the UI and the
API from the same nginx, and the Vite dev server proxies `/api`
(frontend/vite.config.ts), so neither deployment nor development needs CORS
at all. The default is therefore empty — no cross-origin access — and the
middleware is only installed when origins are configured deliberately.
An explicit `*` is still honoured for a genuinely public read-only setup, but
never together with credentials, which is what the spec intends `*` to mean
anyway.
Backend tests
Real integration tests against a real Postgres database — a dedicated
aurum_test database created fresh, migrated, and dropped again on every
run. They never touch the real aurum database or its data: the app's
lifespan startup (which seeds against the real DB) is never triggered, and
every route's DB dependency is overridden to point at aurum_test instead.
Running
The stack must already be up (docker compose up -d). Test dependencies
aren't baked into the production image, so install them once per container
lifetime, then run pytest inside the running backend container — it's the
only place with network access to Postgres:
docker compose exec backend pip install -r requirements-dev.txt
docker compose exec backend pytest -v
Re-run just pytest -v for subsequent runs; the pip install only needs
repeating after a container restart/rebuild.
Adding a test
- Use the
clientfixture (anhttpx.AsyncClientwired to the app) to hit the API the same way the frontend does — prefer this over reaching into services/models directly, so tests keep verifying the actual contract. account_idandcategoriesfixtures give you the same default account/categories a real fresh install seeds.- Every table is truncated and reseeded before each test (see
conftest.py::_clean_database), so tests don't need to worry about leftover state or guess at IDs from a previous test.