affaan-m/ECC

tdd-workflow

Use it for testing and engineering tasks; the detail page covers purpose, installation, and practical steps.

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npx skills add https://github.com/affaan-m/ECC --skill "docs/zh-CN/skills/tdd-workflow"
Automated source guideTestingDeep source

Source checked Jul 28, 2026·Refresh due Oct 26, 2026

Reorganized from the pinned upstream SKILL.md

Source-grounded testing guide: tdd-workflow

此技能确保所有代码开发遵循TDD原则,并具备全面的测试覆盖率。

npx skills add https://github.com/affaan-m/ECC --skill "docs/zh-CN/skills/tdd-workflow"
Check the pinned source

The pinned source contains enough sections and task detail for a source-grounded deep guide; automated content is still not an independent test.

728 source words · 47 usable sections

Testing workflow

Read tdd-workflow through these 5 source sections

Sections are extracted automatically from the pinned SKILL.md and link back to the source.

01

何时激活

编写新功能或功能 修复错误或问题 重构现有代码 添加API端点 创建新组件

SKILL.md · 何时激活
编写新功能或功能修复错误或问题重构现有代码
02

核心原则

最低80%覆盖率(单元 + 集成 + 端到端) 覆盖所有边缘情况 测试错误场景 验证边界条件

SKILL.md · 核心原则
最低80%覆盖率(单元 + 集成 + 端到端)覆盖所有边缘情况测试错误场景
03

1. 测试优先于代码

Review the “1. 测试优先于代码” section in the pinned source before continuing.

SKILL.md · 1. 测试优先于代码
Review and apply the “1. 测试优先于代码” source section.
04

2. 覆盖率要求

最低80%覆盖率(单元 + 集成 + 端到端) 覆盖所有边缘情况 测试错误场景 验证边界条件

SKILL.md · 2. 覆盖率要求
最低80%覆盖率(单元 + 集成 + 端到端)覆盖所有边缘情况测试错误场景
05

3. 测试类型

单个函数和工具 组件逻辑 纯函数 辅助函数和工具

SKILL.md · 3. 测试类型
单个函数和工具组件逻辑纯函数

SkillSignal prompt templates

Provide the task, context, and acceptance criteria

These prompts were written by SkillSignal from the source structure; they are not upstream text.

Source-grounded prompt

Use for a testing task while explicitly checking the source sections.

Use tdd-workflow for this testing task: [task]. Inputs and constraints: [details]. Work through these pinned SKILL.md sections: “何时激活”, “核心原则”, “1. 测试优先于代码”, “2. 覆盖率要求”, “3. 测试类型”. Cite the concrete requirements that shape each step, do not invent capabilities absent from the source, and verify the result against: [acceptance criteria].

Verification checklist

Verify each item before delivery

The source section “何时激活” has been checked.

The source section “核心原则” has been checked.

The source section “1. 测试优先于代码” has been checked.

The source section “2. 覆盖率要求” has been checked.

Static permission evidence

Inspect the exact source lines that triggered a signal

These are source excerpts matched by deterministic rules, not findings of malicious behavior, safety, or actual execution.

Choose a different workflow

When another Skill is the better fit

FAQ

What does the tdd-workflow source document cover?

此技能确保所有代码开发遵循TDD原则,并具备全面的测试覆盖率。

How do I install tdd-workflow?

The source record exposes this install command: npx skills add https://github.com/affaan-m/ECC --skill "docs/zh-CN/skills/tdd-workflow". Inspect the command and pinned source before running it.

Which permission-related actions were detected?

Static rules flagged exec-script, network in the source; the page lists the matching lines and excerpts.

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65/100
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Specificity15/25
Maintenance20/20
Trust signals8/25
View original Skill.mdThis page is parsed directly from the repository SKILL.md without editorial rewriting. Collected: Jul 28, 2026 · about 1 min

测试驱动开发工作流

此技能确保所有代码开发遵循TDD原则,并具备全面的测试覆盖率。

何时激活

  • 编写新功能或功能
  • 修复错误或问题
  • 重构现有代码
  • 添加API端点
  • 创建新组件

核心原则

1. 测试优先于代码

始终先编写测试,然后实现代码以使测试通过。

2. 覆盖率要求

  • 最低80%覆盖率(单元 + 集成 + 端到端)
  • 覆盖所有边缘情况
  • 测试错误场景
  • 验证边界条件

3. 测试类型

单元测试

  • 单个函数和工具
  • 组件逻辑
  • 纯函数
  • 辅助函数和工具

集成测试

  • API端点
  • 数据库操作
  • 服务交互
  • 外部API调用

端到端测试 (Playwright)

  • 关键用户流程
  • 完整工作流
  • 浏览器自动化
  • UI交互

TDD 工作流步骤

步骤 1: 编写用户旅程

作为一个[角色],我希望能够[行动],以便[获得收益]

示例:
作为一个用户,我希望能够进行语义搜索市场,
这样即使没有精确的关键词,我也能找到相关的市场。

步骤 2: 生成测试用例

针对每个用户旅程,创建全面的测试用例:

describe('Semantic Search', () => {
  it('returns relevant markets for query', async () => {
    // Test implementation
  })

  it('handles empty query gracefully', async () => {
    // Test edge case
  })

  it('falls back to substring search when Redis unavailable', async () => {
    // Test fallback behavior
  })

  it('sorts results by similarity score', async () => {
    // Test sorting logic
  })
})

步骤 3: 运行测试(它们应该失败)

npm test
# Tests should fail - we haven't implemented yet

步骤 4: 实现代码

编写最少的代码以使测试通过:

// Implementation guided by tests
export async function searchMarkets(query: string) {
  // Implementation here
}

步骤 5: 再次运行测试

npm test
# Tests should now pass

步骤 6: 重构

在保持测试通过的同时提高代码质量:

  • 消除重复
  • 改进命名
  • 优化性能
  • 增强可读性

步骤 7: 验证覆盖率

npm run test:coverage
# Verify 80%+ coverage achieved

测试模式

单元测试模式 (Jest/Vitest)

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()
  })
})

API 集成测试模式

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 database failure
    const request = new NextRequest('http://localhost/api/markets')
    // Test error handling
  })
})

端到端测试模式 (Playwright)

import { test, expect } from '@playwright/test'

test('user can search and filter markets', async ({ page }) => {
  // Navigate to markets page
  await page.goto('/')
  await page.click('a[href="/markets"]')

  // Verify page loaded
  await expect(page.locator('h1')).toContainText('Markets')

  // Search for markets
  await page.fill('input[placeholder="Search markets"]', 'election')

  // Wait for debounce and results
  await page.waitForTimeout(600)

  // Verify search results displayed
  const results = page.locator('[data-testid="market-card"]')
  await expect(results).toHaveCount(5, { timeout: 5000 })

  // Verify results contain search term
  const firstResult = results.first()
  await expect(firstResult).toContainText('election', { ignoreCase: true })

  // Filter by status
  await page.click('button:has-text("Active")')

  // Verify filtered results
  await expect(results).toHaveCount(3)
})

test('user can create a new market', async ({ page }) => {
  // Login first
  await page.goto('/creator-dashboard')

  // Fill market creation form
  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')

  // Submit form
  await page.click('button[type="submit"]')

  // Verify success message
  await expect(page.locator('text=Market created successfully')).toBeVisible()

  // Verify redirect to market page
  await expect(page).toHaveURL(/\/markets\/test-market/)
})

测试文件组织

src/
├── components/
│   ├── Button/
│   │   ├── Button.tsx
│   │   ├── Button.test.tsx          # 单元测试
│   │   └── Button.stories.tsx       # Storybook
│   └── MarketCard/
│       ├── MarketCard.tsx
│       └── MarketCard.test.tsx
├── app/
│   └── api/
│       └── markets/
│           ├── route.ts
│           └── route.test.ts         # 集成测试
└── e2e/
    ├── markets.spec.ts               # 端到端测试
    ├── trading.spec.ts
    └── auth.spec.ts

模拟外部服务

Supabase 模拟

jest.mock('@/lib/supabase', () => ({
  supabase: {
    from: jest.fn(() => ({
      select: jest.fn(() => ({
        eq: jest.fn(() => Promise.resolve({
          data: [{ id: 1, name: 'Test Market' }],
          error: null
        }))
      }))
    }))
  }
}))

Redis 模拟

jest.mock('@/lib/redis', () => ({
  searchMarketsByVector: jest.fn(() => Promise.resolve([
    { slug: 'test-market', similarity_score: 0.95 }
  ])),
  checkRedisHealth: jest.fn(() => Promise.resolve({ connected: true }))
}))

OpenAI 模拟

jest.mock('@/lib/openai', () => ({
  generateEmbedding: jest.fn(() => Promise.resolve(
    new Array(1536).fill(0.1) // Mock 1536-dim embedding
  ))
}))

测试覆盖率验证

运行覆盖率报告

npm run test:coverage

覆盖率阈值

{
  "jest": {
    "coverageThresholds": {
      "global": {
        "branches": 80,
        "functions": 80,
        "lines": 80,
        "statements": 80
      }
    }
  }
}

应避免的常见测试错误

FAIL: 错误:测试实现细节

// Don't test internal state
expect(component.state.count).toBe(5)

PASS: 正确:测试用户可见的行为

// Test what users see
expect(screen.getByText('Count: 5')).toBeInTheDocument()

FAIL: 错误:脆弱的定位器

// Breaks easily
await page.click('.css-class-xyz')

PASS: 正确:语义化定位器

// Resilient to changes
await page.click('button:has-text("Submit")')
await page.click('[data-testid="submit-button"]')

FAIL: 错误:没有测试隔离

// Tests depend on each other
test('creates user', () => { /* ... */ })
test('updates same user', () => { /* depends on previous test */ })

PASS: 正确:独立的测试

// Each test sets up its own data
test('creates user', () => {
  const user = createTestUser()
  // Test logic
})

test('updates user', () => {
  const user = createTestUser()
  // Update logic
})

持续测试

开发期间的监视模式

npm test -- --watch
# Tests run automatically on file changes

预提交钩子

# Runs before every commit
npm test && npm run lint

CI/CD 集成

# GitHub Actions
- name: Run Tests
  run: npm test -- --coverage
- name: Upload Coverage
  uses: codecov/codecov-action@v3

最佳实践

  1. 先写测试 - 始终遵循TDD
  2. 每个测试一个断言 - 专注于单一行为
  3. 描述性的测试名称 - 解释测试内容
  4. 组织-执行-断言 - 清晰的测试结构
  5. 模拟外部依赖 - 隔离单元测试
  6. 测试边缘情况 - Null、undefined、空、大量数据
  7. 测试错误路径 - 不仅仅是正常路径
  8. 保持测试快速 - 单元测试每个 < 50ms
  9. 测试后清理 - 无副作用
  10. 审查覆盖率报告 - 识别空白

成功指标

  • 达到 80%+ 代码覆盖率
  • 所有测试通过(绿色)
  • 没有跳过或禁用的测试
  • 快速测试执行(单元测试 < 30秒)
  • 端到端测试覆盖关键用户流程
  • 测试在生产前捕获错误

记住:测试不是可选的。它们是安全网,能够实现自信的重构、快速的开发和生产的可靠性。

Source repo
affaan-m/ECC
Skill path
docs/zh-CN/skills/tdd-workflow/SKILL.md
Commit SHA
4e973d3eaf92
Repository license
MIT
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