The Studio design system, widgets and helpers carried a Fai* / fai_ prefix (FaiSpace, FaiColors, FaiTheme, FaiLog, 17 fai_*.dart files, the faiBinary* l10n keys). Studio is the Ch∆In product, so rename them to Chain* / chain_ — carefully preserving English fail/failure/failed. Also fix stale references: the 'fai' binary in l10n strings -> 'chain', FAI_* env vars (FAI_BIN/DATA_DIR/MODULES_DIR/TODAY/BOOTSTRAP_TOKEN) -> CHAIN_*, fai_platform -> fai_chain, fai_hub -> chain_hub. Vendor security-hook tooling (FAI_BANNED_TERMS_FILE) + the .fai bundle ext left. flutter analyze + test: clean (20 passed). Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
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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_testpackage supports it (testWidgets+IntegrationTestWidgetsFlutterBinding), but pumping a fullStudioAppagainst a real gRPC channel needsbinding.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.