Tally MCP

import express from 'express'; import request from 'supertest'; describe('Health and Metrics Endpoints', () => { let app: express.Express; let mockServer: any; beforeAll(() => { // Create a mock express app with the health endpoints app = express(); // Mock server instance with health methods mockServer = { isHealthy: jest.fn().mockReturnValue(true), getUptime: jest.fn().mockReturnValue(12345), }; // Add the health endpoint directly app.get('/health', (req, res) => { const isHealthy = mockServer.isHealthy(); const status = isHealthy ? 'ok' : 'unhealthy'; const statusCode = isHealthy ? 200 : 503; res.status(statusCode).json({ status, timestamp: new Date().toISOString(), uptime: mockServer.getUptime(), }); }); // Add the metrics endpoint app.get('/metrics', (req, res) => { const metrics = `# HELP process_uptime_seconds Process uptime in seconds # TYPE process_uptime_seconds gauge process_uptime_seconds ${mockServer.getUptime()} # HELP active_connections Number of active connections # TYPE active_connections gauge active_connections 0 # HELP memory_used_bytes Memory usage in bytes # TYPE memory_used_bytes gauge memory_used_bytes ${process.memoryUsage().heapUsed} # HELP http_requests_total Total HTTP requests # TYPE http_requests_total counter http_requests_total 1 # HELP http_requests_errors_total Total HTTP request errors # TYPE http_requests_errors_total counter http_requests_errors_total 0 `; res.set('Content-Type', 'text/plain; version=0.0.4; charset=utf-8'); res.send(metrics); }); }); describe('GET /health', () => { it('should return 200 OK with status "ok" when the server is healthy', async () => { mockServer.isHealthy.mockReturnValue(true); const response = await request(app).get('/health'); expect(response.status).toBe(200); expect(response.body.status).toBe('ok'); expect(response.body).toHaveProperty('timestamp'); expect(response.body).toHaveProperty('uptime'); }); it('should return 503 Service Unavailable when the server is unhealthy', async () => { mockServer.isHealthy.mockReturnValue(false); const response = await request(app).get('/health'); expect(response.status).toBe(503); expect(response.body.status).toBe('unhealthy'); }); }); describe('GET /metrics', () => { it('should return 200 OK and Prometheus-compatible metrics', async () => { const response = await request(app).get('/metrics'); expect(response.status).toBe(200); expect(response.header['content-type']).toContain('text/plain'); expect(response.text).toContain('process_uptime_seconds'); expect(response.text).toContain('active_connections'); expect(response.text).toContain('memory_used_bytes'); expect(response.text).toContain('http_requests_total'); expect(response.text).toContain('http_requests_errors_total'); }); }); });