Files
minstrel/internal/dbtest/reset.go
T
bvandeusen 937a1930ad test: add dbtest.ResetDB helper that preserves admin user
Integration tests previously TRUNCATEd the users table at setup,
which wiped the operator's admin login every time the suite ran
against a Postgres instance shared with their dev environment.

This commit:

- Adds internal/dbtest/reset.go exposing ResetDB(t, pool) and
  TestUserPrefix. ResetDB truncates every data table EXCEPT users,
  then deletes only users whose username starts with TestUserPrefix.
- Migrates 9 test files (subsonic/scrobble, subsonic/star,
  recommendation/candidates, scrobble/queue, similarity/worker,
  playevents/writer, playsessions/service, api/auth, api/me) to
  call ResetDB instead of issuing TRUNCATE-with-users.
- Renames hardcoded test usernames to use TestUserPrefix so ResetDB
  cleans them between runs. seedUser in api/auth_test now prefixes
  internally; existing call sites pass bare names.
- Leaves auth/bootstrap_test.go alone — it legitimately tests
  first-time admin bootstrap and must wipe users.

Verified locally: full integration suite with -p 1 runs cleanly
under the existing MINSTREL_TEST_DATABASE_URL setup, and the admin
row in the shared dev DB survives the run.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-04-29 11:55:06 -04:00

74 lines
2.5 KiB
Go

// Package dbtest provides shared helpers for integration tests that need
// a clean Postgres state without disturbing the operator's admin user.
//
// Background: when integration tests run against the same Postgres
// instance an operator uses for local dev (a common dev-laptop setup),
// a TRUNCATE that includes the users table wipes the operator's admin
// login between every test run. To avoid that, tests should:
//
// 1. Call ResetDB instead of issuing TRUNCATE statements directly. It
// truncates every data table EXCEPT users, then deletes only those
// users whose username starts with TestUserPrefix.
// 2. Always create test user rows with a username that begins with
// TestUserPrefix; otherwise those rows survive across runs and
// leak into other tests.
//
// One test legitimately needs to wipe the entire users table:
// internal/auth/bootstrap_test.go, which exercises first-time admin
// bootstrap. That file does its own TRUNCATE and does not use this
// helper.
package dbtest
import (
"context"
"strings"
"testing"
"github.com/jackc/pgx/v5/pgxpool"
)
// TestUserPrefix is the required username prefix for any user row
// created by an integration test. ResetDB removes every user matching
// this prefix and leaves all others intact.
const TestUserPrefix = "test-"
// dataTables is the union of every non-users table touched by any
// integration test in the repo. Truncating the union is harmless for
// callers that only care about a subset; truncating tables that don't
// exist would error, but every name here corresponds to a migration
// that has shipped.
var dataTables = []string{
"artist_similarity",
"track_similarity",
"scrobble_queue",
"contextual_likes",
"general_likes_albums",
"general_likes_artists",
"general_likes",
"play_events",
"skip_events",
"play_sessions",
"sessions",
"tracks",
"albums",
"artists",
}
// ResetDB clears all data tables and removes any user whose username
// begins with TestUserPrefix. Users without that prefix (notably the
// operator's admin row) are left alone. Calls t.Fatalf on error.
func ResetDB(t *testing.T, pool *pgxpool.Pool) {
t.Helper()
ctx := context.Background()
stmt := "TRUNCATE " + strings.Join(dataTables, ", ") + " RESTART IDENTITY CASCADE"
if _, err := pool.Exec(ctx, stmt); err != nil {
t.Fatalf("dbtest.ResetDB truncate: %v", err)
}
if _, err := pool.Exec(ctx,
"DELETE FROM users WHERE username LIKE $1",
TestUserPrefix+"%",
); err != nil {
t.Fatalf("dbtest.ResetDB delete test users: %v", err)
}
}