Extend the 2b.0 red-phase coverage: presence, RLS isolation, offline-queue
contract, and Playwright scaffolds for the shopping-session UX. Only the
presence test is blocked on an upstream Realtime bug (documented below); all
other Realtime paths are proven end-to-end.
Tests
- realtime-postgres-changes.test.ts: now uses afterEach socket disconnect
(Vitest singleFork kept Phoenix sockets alive between files, leaking state)
- realtime-isolation.test.ts (new): R-I-01 David (guest, same collective)
receives events; R-I-02 Eva (non-member) receives NONE — RLS is enforced
server-side per subscribed JWT
- realtime-presence.test.ts (new, describe.skip): two-client roster + leave
assertions ready, gated on upstream bug
- sync-queue.test.ts (new, describe.skip): 7 placeholders pinning the
apps/web/src/lib/sync/queue.ts contract (Q-01..Q-04 enqueue / in-order
flush / retry; F-01..F-03 online-event flush + last-write-wins)
- apps/web/tests/e2e/{session,realtime,offline}.test.ts (new, describe.skip):
S-01..S-03, R-E-01, R-E-02, O-01, O-02 pinning the Modo Compra UI contract
- vitest.config.ts: fileParallelism=false, drop singleFork so each file gets
a fresh worker fork — prevents RealtimeClient singleton leakage
Infra
- db-init/00-role-passwords.sh: pre-create `realtime` schema with
AUTHORIZATION supabase_admin. Realtime's per-tenant migrator creates tables
INSIDE the schema but does not create the schema itself; without this the
first tenant connect fails with "schema realtime does not exist"
- docker-compose.dev.yml: adopt the upstream supabase/supabase Realtime env
shape — SEED_SELF_HOST=true + RUN_JANITOR=true + RLIMIT_NOFILE=10000 +
drop the custom `command: eval seeds` (that bypasses the normal supervisor
startup and was observed to cause GenServer crashes under load).
Version pinned to v2.76.5 to match the official docker-compose.
Known upstream bug
- Realtime v2.76.5 and v2.83.0 both crash on presence_diff:
`(UndefinedFunctionError) RealtimeChannel.handle_out/3 is undefined`.
postgres_changes + isolation unaffected (they don't traverse handle_out).
Presence tests stay `describe.skip` until a fixed upstream is released.
Totals: 59 Vitest passed (+ 9 skipped awaiting implementation/upstream),
16 pgTAP, 15 Playwright (+ 7 E2E scaffolded for 2b UI) = 90 green.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Enable postgres_changes broadcasts on shopping_items / shopping_lists and prove
the path end-to-end with Vitest Realtime tests and a pgTAP configuration check.
Infra changes that were silently blocking events
- Migration 007: shopping_items + shopping_lists added to supabase_realtime
publication with REPLICA IDENTITY FULL (UPDATE/DELETE payloads need the full
row so list_id-based filters work and RLS can evaluate DELETE against OLD)
- Realtime service: DB_USER=supabase_admin (superuser; supabase_replication_admin
lacks CREATE on the `realtime` schema that the service auto-creates per tenant)
- Realtime service: SELF_HOST_TENANT_NAME=realtime so the seed tenant name
matches the default supabase-js resolves for localhost URLs (was realtime-dev
→ TenantNotFound)
Tests
- pgTAP 004_realtime_publication.sql — P-01..P-04: publication membership and
REPLICA IDENTITY FULL for both shopping tables
- Vitest realtime-postgres-changes.test.ts — R-01 INSERT broadcast,
R-02 UPDATE carries full row, R-03 list_id filter isolates events
- test-utils realtime-helpers.ts — subscribePostgresChanges() returns a
waitFor(predicate, timeout) helper that captures the SUBSCRIBED handshake
before returning so mutations issued right after are not lost
- createClientAs now calls realtime.setAuth(token) so the server evaluates
RLS against the test user's JWT
- Justfile test-db now globs supabase/tests/*.sql so new pgTAP files are picked
up automatically
Totals: 54→57 Vitest, 12→16 pgTAP, 15 Playwright = 88 tests green.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
