Testing

Summary

Two test suites: integration (the HTTP edge with fakes) and unit (pure domain and pipeline logic). Both run under pytest with asyncio auto mode.

Layout

tests/
    integration/     # TestClient(app) + mocked resources
    unit/            # models, converters, pipeline stages/roots
    conftest.py      # fixtures

Integration tests

Build the app with TestClient.
Replace app.state.resources with fake repositories/services so no database is required.
Patch the auth introspection call (httpx.AsyncClient.post) to return a canned identity.
Assert status codes and bodies for list/get/create/update/delete, plus 400, 404, 204, and the streaming endpoint's fallback.

client = TestClient(app)
app.state.resources = {"item_svc": FakeItemService(), ...}

def test_create_item():
    r = client.post("/items", json={"name": "x"})
    assert r.status_code == 200

Unit tests

Domain models and converters: pure, no I/O.
Pipeline stages: feed a fixture state, assert the transformed state.
Assembled pipeline roots: fixture parity — replay a stored fixture input and compare against a golden output file.

Config-consistency tests

For rule-driven pipelines, add a test that cross-references rules against the declared pattern registry: every flag emitted must be defined; every defined flag must be reachable. This catches drift without running the pipeline.

Conventions

asyncio_mode = "auto"; no manual event loops.
Fixtures are checked into the repo (inputs + golden outputs).
Tests skip (not fail) when a required fixture is absent.
Do not mock the domain; mock only the infrastructure edge.

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