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test: 감사 저장 batch의 실제 SQL 실행 횟수를 검증한다

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2026-09-16 09:11:27 +00:00
parent ef1ba055b5
commit c9fe204c94
2 changed files with 35 additions and 5 deletions
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app/game-engine/test/playAuditDecisionCost.integration.test.ts
+29 -4
View File
@@ -1,7 +1,7 @@
import { writeFile } from 'node:fs/promises';
import { performance } from 'node:perf_hooks';
import { afterAll, beforeAll, describe, expect, it } from 'vitest';
import { createGamePostgresConnector, type GamePrismaClient } from '@sammo-ts/infra';
import { createGamePostgresConnector, type GamePrisma, type GamePrismaClient } from '@sammo-ts/infra';
import { persistAuditDecisions } from '../src/playAudit/decisionPersistence.js';
import { buildAuditDecisionFixture } from './fixtures/playAuditDecision.js';
@@ -9,12 +9,26 @@ const databaseUrl = process.env.PLAY_AUDIT_COST_DATABASE_URL;
describe.skipIf(!databaseUrl)('decision storage cost probe', () => {
let db: GamePrismaClient;
let close: () => Promise<void>;
let recording = false;
let statements: Record<string, number> = {};
beforeAll(async () => {
if (new URL(databaseUrl!).searchParams.get('schema') !== 'play_audit_cost_decision_fixture')
throw new Error('Dedicated audit cost fixture required');
const connector = createGamePostgresConnector({ url: databaseUrl!, maxConnections: 1 });
const connector = createGamePostgresConnector({
url: databaseUrl!,
maxConnections: 1,
log: [{ emit: 'event', level: 'query' }],
});
await connector.connect();
db = connector.prisma;
// connector의 반환 타입은 log generic을 지운다. 위에서 활성화한 event만 구독한다.
const observedDb = db as GamePrismaClient<GamePrisma.PrismaClientOptions, 'query'>;
observedDb.$on('query', (event) => {
if (!recording) return;
// 원문 SQL/params는 보존하거나 출력하지 않고 명령 종류만 집계한다.
const command = event.query.trim().split(/\s+/, 1)[0]!.toUpperCase();
statements[command] = (statements[command] ?? 0) + 1;
});
close = () => connector.disconnect();
await db.playAuditDecisionChunk.deleteMany();
await db.playAuditDecision.deleteMany();
@@ -27,9 +41,19 @@ describe.skipIf(!databaseUrl)('decision storage cost probe', () => {
return { ...decision, tick: decision.tick + index };
});
const payloadBytes = Buffer.byteLength(JSON.stringify(decisions));
statements = {};
recording = true;
const start = performance.now();
await db.$transaction((tx) => persistAuditDecisions(tx, decisions), { timeout: 30_000 });
try {
await db.$transaction((tx) => persistAuditDecisions(tx, decisions), { timeout: 30_000 });
} finally {
recording = false;
}
const writeMs = performance.now() - start;
const writeStatements = { ...statements };
// 200결정: header1 + chunk3, 나머지1결정: header1 + chunk1. hash 조회는 batch당1.
expect(writeStatements.INSERT).toBe(6);
expect(writeStatements.SELECT).toBe(2);
expect(await db.playAuditDecision.count()).toBe(201);
expect(await db.playAuditDecisionChunk.count()).toBe(603);
const [storage] = await db.$queryRaw<
@@ -75,7 +99,7 @@ describe.skipIf(!databaseUrl)('decision storage cost probe', () => {
`;
const metrics = {
scope: 'synthetic 201 decisions, 302 steps each; isolated schema, warm local reads',
limitations: 'Not production p95; no gameplay baseline, SQL count, WAL or retained heap measurement. Repetitive synthetic steps compress well. Relation allocation can retain space from previous runs.',
limitations: 'Not production p95; no gameplay baseline, WAL or retained heap measurement. SQL counts cover only the persistence transaction. Repetitive synthetic steps compress well. Relation allocation can retain space from previous runs.',
decisions: 201,
steps: Number(storage!.steps),
chunks: 603,
@@ -89,6 +113,7 @@ describe.skipIf(!databaseUrl)('decision storage cost probe', () => {
totalBytes: Number(row.totalBytes),
})),
writeMs,
writeStatements,
samples: timings.length,
readP50Ms: timings[14],
readP95Ms: timings[28],