storefront, storefront-errors, theme, error-boundary and filters.
filters.spec.ts carried the last hand-rolled copies of createCategory, createTag and createItem, and the hardcoded `http://localhost:5173` that meant changing the port in the config would have moved every test except this one. Seeding now goes through support/api, and the host it needs lives in one constant. It has to be a constant rather than the config's baseURL: beforeAll runs with worker-scoped fixtures only and cannot read a test-scoped option, which is why the URL was inlined there in the first place.
New FilterDrawer object. The two rules it encodes are the ones the tests exist to pin down and neither is guessable from a locator: categories are a tree because the filter matches a node and everything filed beneath it, and tags combine with AND rather than OR, so selecting two means "must have both".
The active-filter chips go on StorefrontPage rather than the drawer, because that is where they render — and the scoping matters, since the drawer carries a "Clear all" of its own that an unscoped locator also matches.
StorefrontPage gains the three things the catalogue says instead of listing items. They are named together deliberately: the distinction between "No items yet" and "Couldn't load items" is the point, and several tests assert one is showing while the other is not, because telling a customer the shop is empty when the server is broken hides the outage.
The theme switch and the attribute it writes are both on Header now. The switch is in the header and `data-theme` lands on <body>, so a spec previously had to know about `body` to observe the control it had just clicked.
Verified: 12/12 across the four small specs, 8/8 on filters, tsc clean, lint unchanged at the 30-warning src baseline.
Refs #137
SonarQube reported 0% coverage for 78 unit, 134 integration and 83 end-to-end tests, so the coverage-on-new-code gate — the most useful thing SonarQube offers a project this size — has been failing permanently while looking configured. It now reports 69.6%, verified by a real scan.
Backend coverage comes from both suites, written to separate directories because jest writes coverage/lcov.info by default and the second run would silently overwrite the first. Both are needed rather than just the fast one: the unit suite alone reports 11%, because everything in src/routes is exercised by the integration suite. That suite is manual-only after hanging for 3h12m post-run, so it runs here with --forceExit and the job carries a hard timeout; jest confirmed during testing that it would otherwise have hung.
The frontend had no unit tests at all, so its coverage comes from Playwright driving an istanbul-instrumented dev server, collected per test by an auto-fixture and merged with nyc. The 17 specs now import from a local fixtures module that re-exports @playwright/test, which is what lets the fixture attach without touching each test body.
Instrumentation is gated behind COVERAGE=true and loaded by dynamic import, since vite-plugin-istanbul is ESM-only while vite.config.ts evaluates as CommonJS. Both directions were checked rather than assumed: a normal build contains no instrumentation, and the dev server instruments nested modules as well as top-level ones — the first attempt used an include glob of src/* which would have silently missed everything under src/admin and src/cart.
coverage:report fails when nothing was collected instead of writing an empty report, and that guard was fired deliberately to confirm it works. This project has been bitten twice by tools succeeding while measuring nothing — SonarQube skipping the whole frontend and still exiting EXECUTION SUCCESS in #67, and an ESLint matcher silently matching no files during #60 — and coverage has exactly that shape: an uninstrumented dev server lets every test pass while gathering nothing, and the 0% that follows reads as lost coverage rather than broken collection.
Worth knowing when reading the numbers: end-to-end coverage flatters. Istanbul marks a line covered when the browser ran it, so a component rendered during a test counts as covered with nothing asserting anything about it. Recorded in the design doc and the project context rather than left to be discovered.
Also declares sonar.tests so test files are analysed under the test rule set rather than as production code.
Closes#61
bermudalamb