refactor(topics): 멀티 에이전트용 지식 재편 — _Common(공통 기본기) + Domain_* 구조
에이전트 8종(대화형/프로그래머 C·S/디자이너/설계자/기획자/QA/PD/PM)에게 [공통 기본 능력 + 롤별 Specialty] 2층으로 지식을 주입하기 위한 재분류. 문서 내용·포맷은 무수정, 폴더 이동만 (6,372개 문서 수 보존 확인). - Topic_Programming → Domain_Programming (내부 구조 보존) - Topic_Graphic → Domain_Design - Topic_Business → Domain_Product - Topic_General → Domain_General - _Common 신설: Math(구 Topic_Math_Specialty), Reasoning(구 General/From_Thinking & Reasoning), Reasoning_Creativity(구 General/From_창의성), Communication(Poetic_Blog_Writing + From_writing) - 타 도메인의 From_* 폴더는 유지 (출처 표기일 뿐, 이미 도메인에 맞게 분류된 문서) - 빈 폴더 정리 (memory/procedures) - 에이전트→폴더 매핑은 workspace의 .astra/agent-knowledge-map.json (9개 에이전트) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Antigravity Agent
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---
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id: wiki-2026-0508-test-automation-pyramid
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title: Test Automation Pyramid
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category: 10_Wiki/Topics
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status: verified
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canonical_id: self
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aliases: [Test Pyramid, 테스트 피라미드, Cohn Pyramid]
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duplicate_of: none
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source_trust_level: A
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confidence_score: 0.92
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verification_status: applied
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tags: [testing, architecture, pyramid, automation]
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raw_sources: []
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last_reinforced: 2026-05-10
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github_commit: pending
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tech_stack:
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language: TypeScript
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framework: Vitest/Playwright
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---
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# Test Automation Pyramid
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## 매 한 줄
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> **"매 unit test 가 base, e2e 가 tip"**. Mike Cohn 의 2009 Succeeding with Agile 에서 origin — slow/expensive UI test 의 over-reliance 의 anti-pattern. 매 2026 modern stack 은 unit + integration + contract + e2e 의 4-layer 의 evolution.
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## 매 핵심
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### 매 layers (bottom-up)
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- **Unit (70%)**: pure function, 단일 class, <10ms, in-memory.
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- **Integration (20%)**: DB, HTTP client, 매 real adapter, 100ms-1s.
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- **Contract (5-10%)**: provider/consumer 매 Pact / OpenAPI schema.
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- **E2E (5%)**: 매 full user journey, Playwright/Cypress, 10s+.
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### 매 anti-shapes
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- **Ice cream cone**: 매 e2e heavy, unit 부족 — slow CI, flaky.
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- **Hourglass**: 매 unit + e2e 만, integration 의 gap — production bug 의 source.
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- **Cupcake**: manual test layer 의 추가 — automation 의 의미 상실.
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### 매 응용
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1. CI pipeline tier — unit on every commit, e2e on merge to main.
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2. Bug 발견 시 lowest-level test 의 추가 (root cause level).
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3. Test budget 분배 결정 (시간 / 신뢰도 trade-off).
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## 💻 패턴
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### Vitest unit test
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```typescript
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import { describe, it, expect } from 'vitest';
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import { calculateDiscount } from './pricing';
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describe('calculateDiscount', () => {
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it('applies 10% for VIP customer', () => {
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expect(calculateDiscount(100, 'VIP')).toBe(90);
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});
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it('returns full price for standard customer', () => {
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expect(calculateDiscount(100, 'STANDARD')).toBe(100);
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});
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});
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```
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### Integration test (real Postgres via testcontainers)
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```typescript
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import { PostgreSqlContainer } from '@testcontainers/postgresql';
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let container: StartedTestContainer;
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beforeAll(async () => {
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container = await new PostgreSqlContainer('postgres:16').start();
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process.env.DATABASE_URL = container.getConnectionUri();
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});
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it('persists user', async () => {
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const repo = new UserRepository();
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await repo.save({ id: '1', name: 'Alice' });
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const found = await repo.findById('1');
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expect(found?.name).toBe('Alice');
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});
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```
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### Contract test (Pact consumer)
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```typescript
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import { PactV3, MatchersV3 } from '@pact-foundation/pact';
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const provider = new PactV3({ consumer: 'web', provider: 'api' });
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provider
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.uponReceiving('a request for user')
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.withRequest({ method: 'GET', path: '/users/1' })
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.willRespondWith({
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status: 200,
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body: { id: MatchersV3.string('1'), name: MatchersV3.string('Alice') }
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});
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```
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### Playwright E2E
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```typescript
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import { test, expect } from '@playwright/test';
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test('user can checkout', async ({ page }) => {
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await page.goto('/products/42');
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await page.getByRole('button', { name: 'Add to cart' }).click();
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await page.goto('/cart');
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await page.getByRole('button', { name: 'Checkout' }).click();
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await expect(page).toHaveURL(/\/orders\/\w+/);
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});
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```
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### Test pyramid CI distribution (GitHub Actions)
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```yaml
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jobs:
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unit:
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runs-on: ubuntu-latest
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steps:
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- run: pnpm test:unit # <30s, every push
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integration:
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needs: unit
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steps:
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- run: pnpm test:integration # <5min, every PR
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e2e:
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needs: integration
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if: github.ref == 'refs/heads/main'
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steps:
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- run: pnpm test:e2e # <20min, main only
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```
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### Coverage budget enforcement
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```typescript
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// vitest.config.ts
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export default {
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test: {
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coverage: {
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thresholds: {
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lines: 80,
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functions: 80,
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branches: 75,
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statements: 80,
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},
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},
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},
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};
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```
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## 매 결정 기준
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| 상황 | Approach |
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|---|---|
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| Pure logic, no I/O | Unit test |
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| DB query / external HTTP | Integration with testcontainers |
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| Microservice boundary | Contract test (Pact) |
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| Critical user journey | E2E (smoke only, 5-10 tests) |
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| Visual regression | Playwright trace + screenshot |
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**기본값**: 70/20/10 split (unit/integration/e2e), 매 contract test 는 microservice 환경에서만.
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## 🔗 Graph
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- 부모: [[Test-Driven_Development]] · [[Testability_Architecture]]
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- 응용: [[Continuous Integration]] · [[CI_CD_Pipeline]]
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- Adjacent: [[Mock Objects (가짜 객체)]] · [[Property-Based Testing]]
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## 🤖 LLM 활용
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**언제**: test strategy 설계, CI tier 분배 결정, anti-shape 진단.
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**언제 X**: 매 specific test framework 의 deep API 질문 — 매 official docs 의 우선.
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## ❌ 안티패턴
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- **All e2e**: 매 30분 CI, flaky retry hell.
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- **No integration**: unit pass + production fail (mock drift).
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- **Test pyramid as goal**: 매 ratio 의 obsession — 매 actual confidence 가 metric.
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- **100% coverage**: meaningless — 매 critical path coverage 가 진짜.
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## 🧪 검증 / 중복
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- Verified (Mike Cohn, *Succeeding with Agile* 2009; Martin Fowler 2012 update).
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- 신뢰도 A.
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- 중복: [[Test Pyramid (테스트 피라미드)]] redirect.
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## 🕓 Changelog
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| 날짜 | 변경 |
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|---|---|
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| 2026-05-08 | Phase 1 |
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| 2026-05-10 | Manual cleanup — full canonical content with 4-layer modern pyramid |
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