Files
finance-app/scripts/setup-test-db.sh
siddharthd b958d05287
ci / lint-test (push) Successful in 1m5s
test(db): resolve the integration DSN at run time instead of storing an IP (#161)
setup-test-db.sh wrote .env.test once with the Postgres container's bridge IP
baked in, and Docker reassigns those on recreation. The file rotted silently:
its stored 172.22.0.18 belongs to **gitea** as of today, and an earlier drift
had the suite pointing its TRUNCATE at **postgres-pantry** — which it would
have wiped had the credentials happened to match.

Root-cause fix: stop persisting a host at all.

- scripts/resolve-test-db.sh re-derives the DSN from the live container and
  rewrites .env.test. Resolution order is TEST_DATABASE_URL, then the
  container's published host port, then the bridge IP. `docker port
  postgres-personal` reports 127.0.0.1:5432 since the 2026-08-17 PG17
  migration, so loopback is what gets used here — and a loopback address
  cannot be reassigned to another container, which is the whole point.
  (Note this supersedes the smarthome CLAUDE.md's "postgres-personal publishes
  no host port"; that is now stale.) The bridge-IP fallback is kept for a host
  where the port is not published, and the script never prints the password.
- Wired as `pretest:integration`, so npm runs it before every integration run.
  .env.test becomes a generated artifact rather than stored configuration.
- setup-test-db.sh now only creates the database and copies the schema, then
  delegates to the resolver.
- helpers.ts::assertTestDatabase stays and its message now points at the
  resolver rather than at `docker inspect`. It still earns its place: running
  vitest directly bypasses the pretest hook, and a stale .env.test would then
  still be read.

Docs: CLAUDE.md gains a Testing section carrying this, the prisma-generate
trap for a fresh checkout or worktree, and the frozen-clock rule for tests
whose subject is defined relative to "now". AGENTS.md updated for the same, and
for lint now being blocking.
2026-08-21 00:52:54 +10:00

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#!/bin/bash
# Creates the personal_test database and copies the production schema into it.
# Run once (and after any migration) before integration tests: npm run test:setup
#
# It no longer writes a host into .env.test. That was the #161 defect: the file
# was written once with the container's bridge IP and then rotted as the IP was
# reassigned. scripts/resolve-test-db.sh now re-derives the DSN before every
# integration run (wired as `pretest:integration`), and this script just calls it
# at the end so a fresh setup leaves a usable .env.test behind.
set -e
PG_CONTAINER=${PG_CONTAINER:-postgres-personal}
PG_USER=${PG_USER:-personal}
TEST_DB=${TEST_DB:-personal_test}
if ! docker inspect "$PG_CONTAINER" >/dev/null 2>&1; then
echo "ERROR: Could not find container '$PG_CONTAINER'"
exit 1
fi
# Create test database (ignore error if it already exists)
docker exec "$PG_CONTAINER" psql -U "$PG_USER" -d postgres \
-c "CREATE DATABASE $TEST_DB;" 2>/dev/null || true
# Wipe and rebuild schema from production (schema only, no data)
echo "Copying schema from $PG_USER to $TEST_DB..."
docker exec "$PG_CONTAINER" pg_dump -U "$PG_USER" --schema-only "$PG_USER" \
| docker exec -i "$PG_CONTAINER" psql -U "$PG_USER" -d "$TEST_DB" -q
echo "Schema ready."
bash "$(dirname "$0")/resolve-test-db.sh"
echo "Integration tests can now run with: npm run test:integration"