Next.js MCP Server Template

// API tests for health check endpoint import { NextRequest } from 'next/server'; import { GET, POST } from '@/app/api/health/route'; // Mock the monitoring service jest.mock('@/lib/monitoring', () => ({ monitoring: { getHealthMetrics: jest.fn(), }, })); // Mock the database jest.mock('@/lib/db', () => ({ db: { $queryRaw: jest.fn(), }, })); import { monitoring } from '@/lib/monitoring'; import { db } from '@/lib/db'; describe('/api/health', () => { beforeEach(() => { jest.clearAllMocks(); }); describe('GET /api/health', () => { it('should return healthy status when database is connected', async () => { // Mock database connection success (db.$queryRaw as jest.Mock).mockResolvedValue([{ '1': 1 }]); // Mock health metrics (monitoring.getHealthMetrics as jest.Mock).mockResolvedValue({ status: 'healthy', uptime: 3600, memory: { rss: 100000000, heapTotal: 50000000, heapUsed: 30000000 }, eventsPerHour: 10, errorRate: 0.5, averageResponseTime: 150, timestamp: new Date().toISOString(), }); const request = new NextRequest('http://localhost:3000/api/health'); const response = await GET(request); const data = await response.json(); expect(response.status).toBe(200); expect(data.status).toBe('healthy'); expect(data.checks.database).toBe(true); expect(data.checks.responseTime).toBeDefined(); expect(data.metrics).toBeDefined(); }); it('should return unhealthy status when database is disconnected', async () => { // Mock database connection failure (db.$queryRaw as jest.Mock).mockRejectedValue(new Error('Connection failed')); const request = new NextRequest('http://localhost:3000/api/health'); const response = await GET(request); const data = await response.json(); expect(response.status).toBe(503); expect(data.status).toBe('unhealthy'); expect(data.checks.database).toBe(false); }); it('should include system information', async () => { (db.$queryRaw as jest.Mock).mockResolvedValue([{ '1': 1 }]); (monitoring.getHealthMetrics as jest.Mock).mockResolvedValue({ status: 'healthy', uptime: 3600, memory: { rss: 100000000, heapTotal: 50000000, heapUsed: 30000000 }, eventsPerHour: 10, errorRate: 0.5, averageResponseTime: 150, timestamp: new Date().toISOString(), }); const request = new NextRequest('http://localhost:3000/api/health'); const response = await GET(request); const data = await response.json(); expect(data.uptime).toBeDefined(); expect(data.version).toBeDefined(); expect(data.environment).toBeDefined(); expect(data.timestamp).toBeDefined(); }); }); describe('POST /api/health', () => { it('should return detailed health check with dependency status', async () => { (db.$queryRaw as jest.Mock).mockResolvedValue([{ '1': 1 }]); const request = new NextRequest('http://localhost:3000/api/health', { method: 'POST', }); const response = await POST(request); const data = await response.json(); expect(response.status).toBe(200); expect(data.status).toBeDefined(); expect(data.checks.database).toBeDefined(); expect(data.checks.external).toBeDefined(); expect(data.checks.cache).toBeDefined(); expect(data.system).toBeDefined(); }); it('should handle database connection failures in detailed check', async () => { (db.$queryRaw as jest.Mock).mockRejectedValue(new Error('Connection failed')); const request = new NextRequest('http://localhost:3000/api/health', { method: 'POST', }); const response = await POST(request); const data = await response.json(); expect(data.checks.database.status).toBe('unhealthy'); expect(data.status).toBe('degraded'); }); }); });