#!/usr/bin/env bash
# run-tests.sh — runs the backend test suite behind an advisory lockfile.
#
# WHY: every test package drops/recreates a FIXED test database name
# (crussell_test_handlers_payments, crussell_test_internal_square, etc.) in its
# TestMain. Two concurrent `go test` invocations targeting the same package
# therefore destroy each other's database mid-run (SQLSTATE 3D000 / 57P01
# "terminating connection due to administrator command"). This wrapper
# serializes runs on a flock(1) lockfile so the test DBs are never clobbered.
#
# USAGE:
#   ./run-tests.sh [go test args...]    # e.g. ./run-tests.sh -tags "test,dev" -count=1 -parallel 8 ./...
#   LOCK_TIMEOUT=600 ./run-tests.sh ...  # max wait for the lock (default 300s)
#
# Agents and humans: ALWAYS run backend tests through this script (or take the
# lockfile yourself: `flock /tmp/crussell-tests.lock -c '<cmd>'`).

set -u

LOCKFILE="${LOCKFILE:-/tmp/crussell-tests.lock}"
LOCK_TIMEOUT="${LOCK_TIMEOUT:-300}"

cd "$(dirname "$0")"

exec flock -w "$LOCK_TIMEOUT" "$LOCKFILE" go test "$@"