chain-studio/test/integration
flemming-it cf4024a4e2 test: deterministic operator-guide screenshot harness
integration_test/guide_shots_test.dart boots a hermetic hub
(HubFixture), seeds demo projects (open Bürgeramt; sealed
Ratsinformation and a setup.applied audit event only when the
runner confirms an isolated $HOME), launches the app in German +
dark mode, walks every sidebar page in Cmd order with
content-aware waits, opens the workspace switcher and the setup
wizard, and writes the guide PNGs via a driverless RepaintBoundary
capture. Driven by the platform repo's scripts/regen-studio-guide.sh.

Also fixes the hub fixture's binary resolution, dead since the
rename (it looked for 'fai' and ../chain_platform/): now $CHAIN_BIN,
'chain' on PATH, then ../fai_chain/target/{release,debug}/chain —
the integration tests actually run again instead of silently
skipping.

Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
2026-07-13 00:47:41 +02:00
..
capabilities_test.dart refactor: rename internal Fai* design system + fai_ helpers to chain 2026-06-16 17:53:17 +02:00
hub_fixture.dart test: deterministic operator-guide screenshot harness 2026-07-13 00:47:41 +02:00
install_install_planned_test.dart chore(studio): RadioGroup migration + second integration test 2026-05-25 14:05:43 +02:00
plugin_theme_test.dart refactor: rename internal Fai* design system + fai_ helpers to chain 2026-06-16 17:53:17 +02:00
README.md refactor: rename internal Fai* design system + fai_ helpers to chain 2026-06-16 17:53:17 +02:00

Integration tests

These tests spin up a real chain serve subprocess against a fresh temp dir and exercise Studio's Hub-facing data layer against it. They cover the "kind of regression that survives unit tests because the system-shape only manifests across the gRPC boundary".

Status

Scaffold. One canonical test (capabilities). The harness is production-quality (proper teardown, idempotent, port-clean) so new tests slot in by importing hub_fixture.dart and calling HubFixture.start() / dispose() in setUp / tearDown.

What's NOT here yet:

  • A full "install dep → run echo → assert title" scenario. The harness can do it (install_module is a real RPC), but building the fixture for module-bundle downloads against a hermetic local registry is its own scaffold. Tracked as follow-up to S-21.
  • Studio-side widget testing against the live hub. The flutter integration_test package supports it (testWidgets + IntegrationTestWidgetsFlutterBinding), but pumping a full StudioApp against a real gRPC channel needs binding.enableSurfaceBindingHack() ceremony we haven't designed yet.

Running

cd chain_studio
flutter test test/integration/

Prereq: a fai binary on PATH or at ../fai_chain/target/release/chain. The harness skips with a clear message when neither exists, so this command does not fail on a fresh checkout — it just reports skipped tests.

To get the binary:

cd ../fai_chain
cargo build --release --bin fai

First-time-start gotcha

A cold chain serve spends its first ~30s building the curated-model database and initialising SQLite migrations. HubFixture.start() waits up to 60s by default; if your local hub takes longer the first time, run chain serve once by hand against any temp CHAIN_DATA_DIR to warm the per-user cargo / SBOM caches:

CHAIN_DATA_DIR=/tmp/chain_warmup chain serve --bind 127.0.0.1:0
# wait for "hub started", Ctrl-C

Subsequent integration-test runs are quick.

Not yet wired into CI

.forgejo/workflows/ci.yml doesn't run these yet. Adding them needs an artifact-passing pattern: the platform build job publishes target/release/chain as a CI artifact; the studio test job consumes it. Pattern is straightforward once we want it; it's deferred because we don't yet have enough integration tests to justify the CI runtime.