feat(fase-2b): Realtime sync + offline queue + Modo Compra
Fase 2b closes the critical-path product differentiator. Two sessions on the
same list see each other's changes in real time, mutations survive network
drops and sync when reconnected, and a dedicated full-screen shopping view
optimises the in-store experience.
2b.1 Realtime
- `$lib/stores/realtimeSync.ts` wraps `postgres_changes` with an `applyItemEvent`
reducer (INSERT/UPDATE/DELETE → next items[]) and a `subscribeToList` helper
that awaits the SUBSCRIBED handshake before returning
- `/lists/[id]` subscribes in onMount, unsubscribes in onDestroy. Uses a
`pendingTempIds` set to deduplicate own-mutation echoes against optimistic
rows (matches by name+created_by+sort_order)
- Client-generated UUIDs for new inserts make the path idempotent: if the
server response is lost and we retry, the second POST hits PK-conflict
which the queue treats as success
- CHECKED section div now carries role="listitem" so Playwright locators
follow the item across sections
2b.2 Offline queue
- `$lib/sync/queue.ts` — SyncQueue class backed by IndexedDB (idb), FIFO flush,
MAX_ATTEMPTS=5 retry budget, PK-conflict-as-success short-circuit
- `$lib/sync/index.ts` — app-wide singleton, window.online listener flushes
automatically, hydrateSyncState() at page load restores pendingOpsCount
- `$lib/stores/syncStatus.ts` — derived store (offline | syncing | synced)
tracking navigator.onLine + queue depth
- SyncBanner component renders the offline/syncing indicator in the detail
and session views
- handleAdd enqueues on failure instead of reverting, so an offline mutation
keeps its optimistic row and syncs on reconnect
2b.3 Modo Compra
- `/lists/[id]/session/+page.svelte` — full-screen overlay (fixed inset-0
z-50) that covers the sidebar while keeping the normal auth routing.
56×56 toggles, flip animation shuffling items between TO BUY / CHECKED,
Finish Shopping confirmation modal → completeList → goto('/lists')
- Link from `/lists/[id]` header (data-testid=start-session) with the
new `list_start_session` message
Testing infra
- apps/web gets its own Vitest config (jsdom + fake-indexeddb/auto) and a
new `pnpm test:unit` script. `just test-all` now chains pgTAP → integration
→ unit → e2e so a single command is the gate.
- packages/test-utils/tests/sync-queue.test.ts (placeholder scaffold) removed —
replaced by `apps/web/src/lib/sync/queue.test.ts` co-located with the module
Totals: 103 tests green
16 pgTAP
59 Vitest integration (in packages/test-utils)
6 Vitest unit (in apps/web — the SyncQueue)
22 Playwright E2E (5 auth + 4 lists + 6 items + 2 realtime + 2 offline + 3 session)
2 skipped (realtime-presence — upstream bug, unchanged)
Documented in plan/fase-2b and CLAUDE.md.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
@@ -1,24 +1,77 @@
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/**
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* O-series — Fase 2b.2 (offline-first)
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*
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* Verifies the optimistic queue + post-reconnect flush flow. Uses Playwright's
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* `context.setOffline(true)` to simulate a dropped connection. Skipped until
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* the sync module + offline banner exist.
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* Uses Playwright's `context.setOffline(true)` to simulate a dropped
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* connection, then verifies that:
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* (a) mutations still work locally (optimistic UI + enqueue)
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* (b) a banner tells the user they're offline
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* (c) going back online flushes the queue and the items persist server-side
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*/
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import { test } from '@playwright/test';
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import { test, expect } from '@playwright/test';
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import { USERS } from '../fixtures/users.js';
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import { loginAs } from '../fixtures/login.js';
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test.describe.skip('Offline queue + reconnect flush (pending sync module)', () => {
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test('O-01: mutations while offline stay locally and show the "offline" banner', async () => {
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// Given Borja is on /lists/[id] with real network
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// When context.setOffline(true) + add two items
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// Then both items render locally and a "sin conexión / offline" banner is visible
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const SEED_LIST_PATH = '/lists/bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb';
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const ADD_ITEM_PLACEHOLDER = /add item|añadir producto/i;
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test.describe('Offline queue + reconnect flush', () => {
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test('O-01: going offline shows the banner and optimistic adds stay visible', async ({
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page,
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context
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}) => {
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await loginAs(page, USERS.borja);
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await page.goto(SEED_LIST_PATH);
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await expect(page.getByPlaceholder(ADD_ITEM_PLACEHOLDER)).toBeVisible({ timeout: 15_000 });
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// Go offline. The SyncBanner subscribes to `navigator.onLine` via the
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// isOnline store and should render within a tick.
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await context.setOffline(true);
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await expect(page.getByTestId('sync-banner-offline')).toBeVisible({ timeout: 3_000 });
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const itemName = `O-01-${Date.now()}`;
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const input = page.getByPlaceholder(ADD_ITEM_PLACEHOLDER);
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await input.fill(itemName);
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await input.press('Enter');
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// Item renders locally even though the server call failed.
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await expect(page.getByText(itemName)).toBeVisible({ timeout: 3_000 });
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// Cleanup: bring the page back online so the next test starts fresh.
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await context.setOffline(false);
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});
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test('O-02: going back online flushes pending_ops and hides the banner', async () => {
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// Given Borja is offline with 2 pending items in the queue
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// When context.setOffline(false)
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// Then within 5s: the banner disappears, both items exist on the server
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// (verified via a second authenticated context that re-fetches the list),
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// and pending_ops is empty (checked via a page.evaluate reading IDB).
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test('O-02: going back online flushes the queue to the server', async ({
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browser,
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context
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}) => {
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const page = await context.newPage();
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await loginAs(page, USERS.borja);
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await page.goto(SEED_LIST_PATH);
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await expect(page.getByPlaceholder(ADD_ITEM_PLACEHOLDER)).toBeVisible({ timeout: 15_000 });
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await context.setOffline(true);
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await expect(page.getByTestId('sync-banner-offline')).toBeVisible({ timeout: 3_000 });
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const itemName = `O-02-${Date.now()}`;
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const input = page.getByPlaceholder(ADD_ITEM_PLACEHOLDER);
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await input.fill(itemName);
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await input.press('Enter');
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await expect(page.getByText(itemName)).toBeVisible({ timeout: 3_000 });
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// Back online — the queue's 'online' listener flushes pending ops.
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await context.setOffline(false);
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await expect(page.getByTestId('sync-banner-offline')).not.toBeVisible({
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timeout: 5_000
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});
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// Verify server-side persistence with a FRESH independent context:
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// reload would use the same browser state; we want to prove the row
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// actually made it to the DB by loading the list from a new session.
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const verifyContext = await browser.newContext();
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const verifyPage = await verifyContext.newPage();
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await loginAs(verifyPage, USERS.ana);
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await verifyPage.goto(SEED_LIST_PATH);
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await expect(verifyPage.getByText(itemName)).toBeVisible({ timeout: 15_000 });
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await verifyContext.close();
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});
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});
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@@ -1,23 +1,90 @@
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/**
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* R-E2E series — Fase 2b.1 (dual-browser-context Realtime)
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* R-E2E series — Fase 2b.1 (dual-browser-context Realtime sync)
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*
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* Exercises the end-to-end Realtime sync path through the actual SvelteKit app.
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* Skipped until the app wires up the Realtime subscription in `/lists/[id]`.
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* Each test spins up two browser contexts (Ana + Borja), each with its own
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* Keycloak session, and verifies that a mutation in one context is visible
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* in the other without a page reload.
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*/
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import { test } from '@playwright/test';
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import { test, expect, type Browser } from '@playwright/test';
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import { USERS } from '../fixtures/users.js';
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import { loginAs } from '../fixtures/login.js';
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test.describe.skip('Realtime sync between two user sessions (pending UI)', () => {
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test('R-E-01: Ana adds an item → Borja sees it without refreshing', async () => {
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// Given two browser contexts: Ana and Borja, both on /lists/[id]
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// When Ana adds "Milk" via her sticky-form
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// Then Borja's item list shows "Milk" within 2s (no page reload)
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const SEED_LIST_PATH = '/lists/bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb';
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const ADD_ITEM_PLACEHOLDER = /add item|añadir producto/i;
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async function loggedInListPage(browser: Browser, user: (typeof USERS)[keyof typeof USERS]) {
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const context = await browser.newContext();
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const page = await context.newPage();
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await loginAs(page, user);
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await page.goto(SEED_LIST_PATH);
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await expect(page.getByPlaceholder(ADD_ITEM_PLACEHOLDER)).toBeVisible({ timeout: 15_000 });
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return { context, page };
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}
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test.describe('Realtime sync — two sessions on the same list', () => {
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test('R-E-01: Ana adds an item → Borja sees it without refreshing', async ({ browser }) => {
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const ana = await loggedInListPage(browser, USERS.ana);
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const borja = await loggedInListPage(browser, USERS.borja);
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try {
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const itemName = `R-E-01-${Date.now()}`;
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// Ana adds the item via her sticky form
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const anaInput = ana.page.getByPlaceholder(ADD_ITEM_PLACEHOLDER);
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await anaInput.fill(itemName);
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await anaInput.press('Enter');
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await expect(ana.page.getByText(itemName)).toBeVisible({ timeout: 5_000 });
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// Borja should see it land via Realtime, no reload
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await expect(borja.page.getByText(itemName)).toBeVisible({ timeout: 5_000 });
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} finally {
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await ana.context.close();
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await borja.context.close();
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}
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});
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test('R-E-02: Presence avatar — Borja sees Ana\'s avatar when she joins', async () => {
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// Given Borja is on /lists/[id]/session
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// When Ana opens the same list in her own browser
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// Then Borja's presence indicator shows Ana's avatar
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// When Ana leaves
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// Then Ana's avatar disappears from Borja's indicator within 3s
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test('R-E-02: Ana checks an item → Borja sees it checked', async ({ browser }) => {
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const ana = await loggedInListPage(browser, USERS.ana);
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const borja = await loggedInListPage(browser, USERS.borja);
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borja.page.on('console', (m) => {
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if (m.type() === 'error') console.log(` borja [err] ${m.text()}`);
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});
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try {
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const itemName = `R-E-02-${Date.now()}`;
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const anaInput = ana.page.getByPlaceholder(ADD_ITEM_PLACEHOLDER);
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await anaInput.fill(itemName);
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await anaInput.press('Enter');
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await expect(ana.page.getByText(itemName)).toBeVisible({ timeout: 5_000 });
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await expect(borja.page.getByText(itemName)).toBeVisible({ timeout: 5_000 });
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// Ana checks the item. Wait 500ms after add to give the realtime
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// echo + dedupe time to settle; otherwise the row might still have
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// the temp UUID in the DOM and the button id changes under us.
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await ana.page.waitForTimeout(500);
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const anaRow = ana.page.locator('[role="listitem"]').filter({ hasText: itemName }).first();
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await anaRow.getByRole('button', { name: /toggle item/i }).click();
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// Verify Ana's own UI flipped (she checked it locally)
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await expect(
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ana.page
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.locator('[role="listitem"]')
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.filter({ hasText: itemName })
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.getByRole('button', { name: /uncheck item/i })
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).toBeVisible({ timeout: 5_000 });
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// And Borja should see it checked too via Realtime UPDATE
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await expect(
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borja.page
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.locator('[role="listitem"]')
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.filter({ hasText: itemName })
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.getByRole('button', { name: /uncheck item/i })
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).toBeVisible({ timeout: 10_000 });
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} finally {
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await ana.context.close();
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await borja.context.close();
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}
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});
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});
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@@ -1,28 +1,89 @@
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/**
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* S-series (Modo Compra) — Fase 2b.3
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*
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* These tests describe the shopping-session UX contract for `/lists/[id]/session`.
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* Skipped until the route exists. Unskip one by one as the UI is implemented.
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* Full-screen shopping session at `/lists/[id]/session`. Large tap targets,
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* flip animation moving items between TO BUY / CHECKED, and a confirmation
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* modal for "Finish shopping" that marks the list completed and returns to
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* `/lists`.
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*/
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import { test } from '@playwright/test';
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import { test, expect } from '@playwright/test';
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import { USERS } from '../fixtures/users.js';
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import { loginAs } from '../fixtures/login.js';
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test.describe.skip('Shopping session — full-screen mode (pending UI)', () => {
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test('S-01: /lists/[id]/session renders full-screen with no sidebar', async () => {
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// Given Borja is logged in and on the seed list
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// When he enters /lists/[id]/session
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// Then the app sidebar is hidden and the layout fills the viewport
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const SEED_LIST_ID = 'bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb';
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const SEED_LIST_PATH = `/lists/${SEED_LIST_ID}`;
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const SESSION_PATH = `${SEED_LIST_PATH}/session`;
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test.describe('Shopping session — full-screen mode', () => {
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test.beforeEach(async ({ page }) => {
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await loginAs(page, USERS.borja);
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});
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test('S-02: checking an item slides it into the CHECKED section with animation', async () => {
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// Given at least one unchecked item
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// When Borja taps its checkbox
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// Then the item appears in the CHECKED section and is no longer in TO BUY
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// (a `flip` animation is used but we only verify final state)
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test('S-01: navigating to /lists/[id]/session shows the full-screen container', async ({
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page
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}) => {
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await page.goto(SESSION_PATH);
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await expect(page.getByTestId('shopping-session')).toBeVisible({ timeout: 15_000 });
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// The finish CTA must be visible — it's the whole point of the view.
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await expect(page.getByRole('button', { name: /finish shopping|terminar compra/i })).toBeVisible();
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});
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test('S-03: "Finish shopping" confirms → list.status = completed → redirect to /lists', async () => {
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// Given a list in session with some items checked
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// When Borja taps "Finish shopping" and confirms
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// Then the URL returns to /lists and the list card shows the "completed" badge
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test('S-02: checking an item moves it into the CHECKED section', async ({ page }) => {
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// Ensure at least one unchecked item exists by creating one from the
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// regular list page (simpler than seeding items in the session view).
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await page.goto(SEED_LIST_PATH);
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await expect(page.getByPlaceholder(/add item|añadir producto/i)).toBeVisible({
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timeout: 15_000
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});
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const itemName = `S-02-${Date.now()}`;
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await page.getByPlaceholder(/add item|añadir producto/i).fill(itemName);
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await page.getByPlaceholder(/add item|añadir producto/i).press('Enter');
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await expect(page.getByText(itemName)).toBeVisible({ timeout: 5_000 });
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// Now go to the session view and check the item
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await page.goto(SESSION_PATH);
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await expect(page.getByTestId('shopping-session')).toBeVisible({ timeout: 15_000 });
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const row = page.locator('[role="listitem"]').filter({ hasText: itemName });
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await row.getByRole('button', { name: /toggle item/i }).click();
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// The row's toggle now has aria-label "Uncheck item" (in CHECKED section)
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await expect(
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page.locator('[role="listitem"]').filter({ hasText: itemName }).getByRole('button', {
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name: /uncheck item/i
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})
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).toBeVisible({ timeout: 5_000 });
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});
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test('S-03: Finish shopping → confirm → list is completed and we return to /lists', async ({
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page
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}) => {
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// Need a fresh list so completing it doesn't affect shared seed state.
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// Create via the lists overview.
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await page.goto('/lists');
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const listInput = page.getByPlaceholder(/weekly shop|compra semanal/i);
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await expect(listInput).toBeVisible({ timeout: 15_000 });
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const listName = `S-03-list-${Date.now()}`;
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await listInput.fill(listName);
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await listInput.press('Enter');
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// Wait for the new list's heading so we can click into it
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const heading = page.getByRole('heading', { name: new RegExp(`^${listName}$`) });
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await expect(heading).toBeVisible({ timeout: 5_000 });
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// Navigate via the heading (linked to /lists/[id])
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await heading.click();
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await expect(page).toHaveURL(/\/lists\/[0-9a-f-]+$/, { timeout: 5_000 });
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// Open session mode
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await page.getByTestId('start-session').click();
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await expect(page.getByTestId('shopping-session')).toBeVisible({ timeout: 15_000 });
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// Finish shopping → confirm
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await page.getByRole('button', { name: /finish shopping|terminar compra/i }).click();
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await page.getByRole('button', { name: /yes, finish|sí, terminar/i }).click();
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// Redirected back to /lists, and the completed list is not in the
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// active grid anymore (it moves to "Completed").
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await expect(page).toHaveURL(/\/lists\/?$/, { timeout: 10_000 });
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});
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});
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