Modern UI port, render-based @ui tests, dev seed, layer contracts
- Port modern clean theme (DM Sans, orange accent, app-* CSS classes) and screen redesigns from festipod-mockups; replace sketchy Ubuntu theme. New shared components: BottomNav, EventCover, EventMeetingPoints, Toast, AvatarStack, Tag, RelevanceIcon. - Restructure from prototyping shell to real mobile web app: path-based routing (History API), Gallery/DemoMode/PhoneFrame removed, Storybook setup for screen/component browsing. - ConnectScreen ported from mockup (QR-based user connection); routed at /profile/connect, wired from FriendsListScreen. - Dev-only auto-seed of NG wallet when empty (gated on NODE_ENV !== 'production'); bootstrapWallet already self-checks for non-empty ngSet so safe even in race conditions. - Render-based @ui test infrastructure: happy-dom + LocalDataProvider + RouterProvider via src/shared/test-harness/renderHelper.tsx, exposed on the world as renderedDoc. world.hasText/hasField/hasElement prefer the rendered DOM and fall back to source for backward compatibility. - Migrate 25 brittle @ui assertions from regex-on-source to DOM queries; delete implementation-detail tests (showDuplicateWarning, importableEvents, importedFrom — anti-patterns per the new contract). Update feature files where the UI changed: "Mes amis" → "Mon réseau", "Mes événements à venir" → "À venir" on home, Thématique removed from create-event wizard, etc. - Path-based @e2e steps (pushState + popstate dispatch) replacing the legacy "#/demo/…" hash routing tied to the deleted Gallery. - Add .project/knowledge/test-layer-contracts.md defining the role of each test layer (@ui = display with seed data + DOM, @data = mutations through NG broker, @e2e = critical user journeys) with anti-patterns and migration consequences. Test status: 75 passed / 71 skipped (explicit "non implémenté") / 2 failed (pre-existing @wip on ngSet.delete() NG ORM limitation). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Sylvain Duchesne
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# Test Layer Contracts
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Each BDD test layer (`@ui`, `@data`, `@e2e`) answers a distinct question. Mixing concerns produces brittle tests that fail on refactors without catching real regressions.
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## Overview
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```
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/\ @e2e ~10 scénarios, parcours utilisateur critiques
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/ \
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/----\
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/ @data\ ~10 scénarios, mutations & persistance NG
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/--------\
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/ @ui \ ~60 scénarios, 1-5 par état d'écran × 15 écrans
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/____________\
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```
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The pyramid reflects cost: `@ui` runs in-process (instant), `@data` boots a broker (~50s for the suite), `@e2e` boots broker + real app + navigates a real browser (~2min). Move every assertion to the lowest layer that can answer the question — UI rendering claims belong in `@ui`, not `@e2e`.
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## Key Concepts
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- **`@ui` — display layer.** Renders a screen with `LocalDataProvider` (seed data) + happy-dom and asserts on the resulting DOM. Verifies that *given known data, the screen shows the expected text and elements*. Does **not** test navigation outcomes, mutations, or data persistence.
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- **`@data` — data layer.** Drives ORM mutations through the real NextGraph broker via a headless test harness. No app UI involved. Verifies that *operations on shapes are correctly persisted and observable in the wallet*. See [data-layer-testing](./data-layer-testing.md).
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- **`@e2e` — integration layer.** Boots the real app inside the broker iframe with a Playwright-controlled Chromium. Verifies that *layers collaborate to deliver a user journey* (e.g. create → list → modify → reload → still there). Sparse: 1 scenario per critical path; never duplicate `@ui` content checks here.
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## Implementation
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### `@ui` — rendering helper
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`src/shared/test-harness/renderHelper.tsx` installs happy-dom globals and renders any screen wrapped in `LocalDataProvider` + `RouterProvider`. Called from `world.ts:renderCurrentScreen()` on every `navigateTo(...)`. Seed data (`src/shared/data/seedData.ts`) provides predictable fixtures — `Marie Dupont`/`@mariedupont` is `currentUser`, `Jean Durand`/`@jeandurand` exists in `users`, 5 seed events, etc.
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**Good `@ui` assertion patterns:**
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```ts
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// Text visible to the user
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expect(this.getDomText()).to.include('Marie Dupont');
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// Element presence by class/role
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expect(this.renderedDoc!.querySelector('.app-avatar')).to.not.be.null;
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// Conditional rendering (filled state vs empty state)
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const cards = this.renderedDoc!.querySelectorAll('.app-card');
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expect(cards.length).to.be.greaterThan(0);
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// Required form fields rendered with their label + asterisk
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const labels = Array.from(this.renderedDoc!.querySelectorAll('p'))
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.map(p => p.textContent ?? '');
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expect(labels.some(t => t.includes("Nom de l'événement *"))).to.be.true;
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```
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**Anti-patterns to remove:**
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```ts
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// ❌ Regex on source: couples test to code structure, fails on refactor
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expect(/<Title[^>]*>Marie Dupont<\/Title>/.test(source)).to.be.true;
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// ❌ Testing implementation details
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expect(/showDuplicateWarning/.test(source)).to.be.true;
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expect(/importableEvents/.test(source)).to.be.true;
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// ❌ Testing JSX structure rather than rendered output
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expect(/<Avatar[^>]*initials="MD"[^>]*size="lg"/.test(source)).to.be.true;
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```
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### `@data` — broker-only
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Already isolated correctly. See [data-layer-testing](./data-layer-testing.md). Don't touch the DOM here; use the test harness bridge (`window.__testData`).
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### `@e2e` — full stack
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Path-based routing: navigate via `window.history.pushState` + `popstate` dispatch (`src/modules/auth/steps/e2e/connexion.steps.ts`). Assert on actual DOM text after `appFrame.waitForFunction`. **Do not** re-verify here what `@ui` already covers — `@e2e` should fail when *collaboration* between layers breaks, not when an icon changes.
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## Migration Consequences
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The current `@ui` suite predates this contract. The migration plan:
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1. **Rewrite source-grep assertions** → DOM queries via the helper. The `world.ts:hasText/hasField/hasElement` methods already prefer the rendered DOM and fall back to source — so unmigrated steps still work during the transition.
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2. **Delete tests on implementation details** (`/showDuplicateWarning/`, `/importableEvents/`, regex on JSX). They protect nothing the user sees.
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3. **Move behavioral assertions to `@e2e`** when not already covered ("clicking Suivant advances the wizard" — exercise it via Playwright if it's not redundant with existing journeys).
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4. **Drop redundant `@e2e` content checks** that duplicate `@ui` (e.g. "screen contains 'Découvrir'" — let `@ui` own that).
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`world.ts:screenFileMap`, `screenFieldDetectors`, `screenExpectedContent`, `screenRequiredFields` are vestiges of the source-analysis era. Once the migration is complete, they can be removed in favor of seed-data assertions on the rendered DOM.
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## See Also
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- [BDD Testing setup](./bdd-testing.md) — Cucumber config, file layout, scripts
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- [Data Layer](./data-layer.md) — NextGraph shapes, seed data, contexts
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- [Data-Layer Testing](./data-layer-testing.md) — broker harness, wallet setup, Playwright
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- [Architecture](./architecture.md) — module structure
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