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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.
デフォルトでは、最初にソースを確認する Prompt が選択されています。直接コマンドに切り替えるか、ローカルコピーをダウンロードすることもできます。
インストールを決める前に、SKILL.md と SkillsMP に表示されている付属ファイルをお読みください。
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
直接コマンドでは確認用 Prompt が省略されます。実行前にソースを確認してください。
npx skills add https://github.com/jvegaf/harmony --skill tdd-workflowコマンドは1行のまま表示されます。コピー前に横へスクロールして全体を確認してください。
ローカルで確認しますか？SkillsMP が現在取得できるファイルをダウンロードできます。
SOC 職業分類に基づく
SKILL.md を表示中
| name | tdd-workflow |
| description | 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. |
This skill ensures all code development follows TDD principles with comprehensive test coverage.
ALWAYS write tests first, then implement code to make tests pass.
As a [role], I want to [action], so that [benefit]
Example:
As a user, I want to search for markets semantically,
so that I can find relevant markets even without exact keywords.
For each user journey, create comprehensive test cases:
(, {
(, () => {
});
(, () => {
});
(, () => {
});
(, () => {
});
});
npm test
# Tests should fail - we haven't implemented yet
Write minimal code to make tests pass:
// Implementation guided by tests
export async function searchMarkets(query: string) {
// Implementation here
}
npm test
# Tests should now pass
Improve code quality while keeping tests green:
npm run test:coverage
# Verify 80%+ coverage achieved
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 database failure
const request = new NextRequest('http://localhost/api/markets');
// Test error handling
});
});
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/);
});
src/
├── components/
│ ├── Button/
│ │ ├── Button.tsx
│ │ ├── Button.test.tsx # Unit tests
│ │ └── Button.stories.tsx # Storybook
│ └── MarketCard/
│ ├── MarketCard.tsx
│ └── MarketCard.test.tsx
├── app/
│ └── api/
│ └── markets/
│ ├── route.ts
│ └── route.test.ts # Integration tests
└── e2e/
├── markets.spec.ts # E2E tests
├── 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-dim embedding
),
),
}));
npm run test:coverage
{
"jest": {
"coverageThresholds": {
"global": {
"branches": 80,
"functions": 80,
"lines": 80,
"statements": 80
}
}
}
}
// Don't test internal state
expect(component.state.count).toBe(5);
// Test what users see
expect(screen.getByText('Count: 5')).toBeInTheDocument();
// Breaks easily
await page.click('.css-class-xyz');
// Resilient to changes
await page.click('button:has-text("Submit")');
await page.click('[data-testid="submit-button"]');
// Tests depend on each other
test('creates user', () => {
/* ... */
});
test('updates same user', () => {
/* depends on previous test */
});
// Each test sets up its own data
test('creates user', () => {
const user = createTestUser();
// Test logic
});
test('updates user', () => {
const user = createTestUser();
// Update logic
});
npm test -- --watch
# Tests run automatically on file changes
# Runs before every commit
npm test && npm run lint
# GitHub Actions
- name: Run Tests
run: npm test -- --coverage
- name: Upload Coverage
uses: codecov/codecov-action@v3
Remember: Tests are not optional. They are the safety net that enables confident refactoring, rapid development, and production reliability.