Use this skill when writing new features, fixing bugs, or refactoring code. Enforces test-driven development with 80%+ coverage including unit, integration, and E2E tests.
npxskills add affaan-m/everything-claude-code--skill tdd-workflowLoading…
此技能確保所有程式碼開發遵循 TDD 原則，並具有完整的測試覆蓋率。
總是先寫測試，然後實作程式碼使測試通過。
身為 [角色]，我想要 [動作]，以便 [好處]
範例：
身為使用者，我想要語意搜尋市場，
以便即使沒有精確關鍵字也能找到相關市場。
為每個使用者旅程建立完整的測試案例：
describe('Semantic Search', () => {
it('returns relevant markets for query', async () => {
// 測試實作
})
it('handles empty query gracefully', async () => {
// 測試邊界案例
})
it('falls back to substring search when Redis unavailable', async () => {
// 測試回退行為
})
it('sorts results by similarity score', async () => {
// 測試排序邏輯
})
})
npm test
# 測試應該失敗 - 我們還沒實作
撰寫最少的程式碼使測試通過：
// 由測試引導的實作
export async function searchMarkets(query: string) {
// 實作在此
}
npm test
# 測試現在應該通過
在保持測試通過的同時改善程式碼品質：
npm run test:coverage
# 驗證達到 80%+ 覆蓋率
import { render, screen, fireEvent } from '@testing-library/react'
import { Button } from './Button'
describe('Button Component', () => {
it('renders with correct text', () => {
render(<Button>Click me</Button>)
expect(screen.getByText('Click me')).toBeInTheDocument()
})
it('calls onClick when clicked', () => {
const handleClick = jest.fn()
render(<Button onClick={handleClick}>Click</Button>)
fireEvent.click(screen.getByRole('button'))
expect(handleClick).toHaveBeenCalledTimes(1)
})
it('is disabled when disabled prop is true', () => {
render(<Button disabled>Click</Button>)
expect(screen.getByRole('button')).toBeDisabled()
})
})
import { NextRequest } from 'next/server'
import { GET } from './route'
describe('GET /api/markets', () => {
it('returns markets successfully', async () => {
const request = new NextRequest('http://localhost/api/markets')
const response = await GET(request)
const data = await response.json()
expect(response.status).toBe(200)
expect(data.success).toBe(true)
expect(Array.isArray(data.data)).toBe(true)
})
it('validates query parameters', async () => {
const request = new NextRequest('http://localhost/api/markets?limit=invalid')
const response = await GET(request)
expect(response.status).toBe(400)
})
it('handles database errors gracefully', async () => {
// Mock 資料庫失敗
const request = new NextRequest('http://localhost/api/markets')
// 測試錯誤處理
})
})
import { test, expect } from '@playwright/test'
test('user can search and filter markets', async ({ page }) => {
// 導航到市場頁面
await page.goto('/')
await page.click('a[href="/markets"]')
// 驗證頁面載入
await expect(page.locator('h1')).toContainText('Markets')
// 搜尋市場
await page.fill('input[placeholder="Search markets"]', 'election')
// 等待 debounce 和結果
await page.waitForTimeout(600)
// 驗證搜尋結果顯示
const results = page.locator('[data-testid="market-card"]')
await expect(results).toHaveCount(5, { timeout: 5000 })
// 驗證結果包含搜尋詞
const firstResult = results.first()
await expect(firstResult).toContainText('election', { ignoreCase: true })
// 依狀態篩選
await page.click('button:has-text("Active")')
// 驗證篩選結果
await expect(results).toHaveCount(3)
})
test('user can create a new market', async ({ page }) => {
// 先登入
await page.goto('/creator-dashboard')
// 填寫市場建立表單
await page.fill('input[name="name"]', 'Test Market')
await page.fill('textarea[name="description"]', 'Test description')
await page.fill('input[name="endDate"]', '2025-12-31')
// 提交表單
await page.click('button[type="submit"]')
// 驗證成功訊息
await expect(page.locator('text=Market created successfully')).toBeVisible()
// 驗證重導向到市場頁面
await expect(page).toHaveURL(/\/markets\/test-market/)
})
src/
├── components/
│ ├── Button/
│ │ ├── Button.tsx
│ │ ├── Button.test.tsx # 單元測試
│ │ └── Button.stories.tsx # Storybook
│ └── MarketCard/
│ ├── MarketCard.tsx
│ └── MarketCard.test.tsx
├── app/
│ └── api/
│ └── markets/
│ ├── route.ts
│ └── route.test.ts # 整合測試
└── e2e/
├── markets.spec.ts # E2E 測試
├── trading.spec.ts
└── auth.spec.ts
jest.mock('@/lib/supabase', () => ({
supabase: {
from: jest.fn(() => ({
select: jest.fn(() => ({
eq: jest.fn(() => Promise.resolve({
data: [{ id: 1, name: 'Test Market' }],
error: null
}))
}))
}))
}
}))
jest.mock('@/lib/redis', () => ({
searchMarketsByVector: jest.fn(() => Promise.resolve([
{ slug: 'test-market', similarity_score: 0.95 }
])),
checkRedisHealth: jest.fn(() => Promise.resolve({ connected: true }))
}))
jest.mock('@/lib/openai', () => ({
generateEmbedding: jest.fn(() => Promise.resolve(
new Array(1536).fill(0.1) // Mock 1536 維嵌入向量
))
}))
npm run test:coverage
{
"jest": {
"coverageThresholds": {
"global": {
"branches": 80,
"functions": 80,
"lines": 80,
"statements": 80
}
}
}
}
// 不要測試內部狀態
expect(component.state.count).toBe(5)
// 測試使用者看到的內容
expect(screen.getByText('Count: 5')).toBeInTheDocument()
// 容易壞掉
await page.click('.css-class-xyz')
// 對變更有彈性
await page.click('button:has-text("Submit")')
await page.click('[data-testid="submit-button"]')
// 測試互相依賴
test('creates user', () => { /* ... */ })
test('updates same user', () => { /* 依賴前一個測試 */ })
// 每個測試設置自己的資料
test('creates user', () => {
const user = createTestUser()
// 測試邏輯
})
test('updates user', () => {
const user = createTestUser()
// 更新邏輯
})
npm test -- --watch
# 檔案變更時自動執行測試
# 每次 commit 前執行
npm test && npm run lint
# GitHub Actions
- name: Run Tests
run: npm test -- --coverage
- name: Upload Coverage
uses: codecov/codecov-action@v3
記住：測試不是可選的。它們是實現自信重構、快速開發和生產可靠性的安全網。
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