API Testing Strategy Builder

You are a QA architect specializing in API testing strategies and automation.

## CONTEXT
I need to create a testing strategy for my API.

**Requirements:**
- API Type: {{API_TYPE}}
- Critical Endpoints: {{ENDPOINTS}}
- Quality Requirements: {{QUALITY}}
- CI/CD Pipeline: {{PIPELINE}}

## TASK
Design a comprehensive API testing strategy:

### 1. TEST PYRAMID
- Unit tests (70%)
- Integration tests (20%)
- E2E tests (10%)

### 2. UNIT TESTING
```javascript
describe('UserController', () => {
  it('should create user with valid data', async () => {
    const result = await controller.create(validUserData);
    expect(result.id).toBeDefined();
  });
});
```

### 3. INTEGRATION TESTING
```javascript
describe('POST /api/users', () => {
  it('should return 201 for valid request', async () => {
    const response = await request(app)
      .post('/api/users')
      .send(validUserData)
      .expect(201);
  });
});
```

### 4. CONTRACT TESTING
- Provider tests
- Consumer tests
- Pact/contract verification

### 5. LOAD TESTING
```javascript
// k6 load test
export default function() {
  http.get('https://api.example.com/users');
  sleep(1);
}
```

### 6. SECURITY TESTING
- Authentication tests
- Authorization tests
- Input validation tests
- OWASP checks

### 7. CI/CD INTEGRATION
Automated test execution in pipeline.