Powertools MCP Search Server

import { afterAll, beforeAll, describe, expect, it } from 'vitest'; import { POWERTOOLS_BASE_URL } from '../../src/constants.ts'; import { StdioServer } from '../e2e/helpers.ts'; describe('MCP Server e2e (child process)', () => { const server = new StdioServer({ args: process.env.BUILT_OUTPUT === 'true' ? ['dist/index.js'] : ['--experimental-transform-types', 'src/index.ts'], }); beforeAll(async () => { await server.start(); }); afterAll(() => { server.stop(); }); it('returns the list of tools available', async () => { // Act const response = await server.sendRequest<{ tools: { name: string }[] }>({ id: 1, method: 'tools/list', }); // Assess expect(Array.isArray(response.tools)).toBe(true); expect(response.tools[0].name).toBe('search_docs'); expect(response.tools[1].name).toBe('fetch_doc_page'); }); it('uses the search tool', async () => { // Act const response = await server.sendRequest<{ content: { text: string; type: 'text' }[]; }>({ id: 2, method: 'tools/call', params: { name: 'search_docs', arguments: { search: 'metrics', runtime: 'typescript', version: 'latest', }, }, }); // Assess expect(response.content[0].type).toBe('text'); expect(response.content[0].text).toBeDefined(); expect(response.content[0].type).toBe('text'); expect(response.content[0].text).toBeDefined(); expect(response.content).toHaveNthResultWith(1, { title: 'features/metrics/', score: expect.any(Number), url: expect.stringContaining( `${POWERTOOLS_BASE_URL}/typescript/latest/features/metrics/` ), }); }); it('uses the fetch_doc_page tool', async () => { // Act const response = await server.sendRequest<{ content: { text: string; type: 'text' }[]; }>({ id: 3, method: 'tools/call', params: { name: 'fetch_doc_page', arguments: { url: `${POWERTOOLS_BASE_URL}/typescript/latest/features/metrics/`, }, }, }); // Assess expect(response.content[0].type).toBe('text'); expect(response.content[0].text).toContain('Metrics'); }); });