MCP Fetch

import { MCPTestHelper } from '../test-utils/jest-mcp-helper'; import { execSync } from 'child_process'; import * as fs from 'fs'; import * as path from 'path'; import { startTestServer, TestServerInstance } from '../mocks/test-server'; // Extend the global namespace declare global { var mcpClient: MCPTestHelper; var mcpClientInitialized: boolean; var testServer: TestServerInstance; var testServerUrl: string; } let globalMCPClient: MCPTestHelper; let globalTestServer: TestServerInstance; // Build the server before all tests - but only once beforeAll(async () => { // Check if we already initialized (for parallel test runs) if (global.mcpClientInitialized) { return; } // Start the test server first globalTestServer = await startTestServer(0); // Use port 0 for automatic port assignment global.testServer = globalTestServer; global.testServerUrl = `http://localhost:${globalTestServer.port}`; // Check if build is needed by looking for the dist directory const distPath = path.join(process.cwd(), 'dist', 'stdio.js'); const needsBuild = !fs.existsSync(distPath); if (needsBuild) { try { execSync('pnpm run build', { stdio: 'inherit', cwd: process.cwd() }); } catch (error) { throw error; } } try { globalMCPClient = await MCPTestHelper.createTestClient(); global.mcpClient = globalMCPClient; global.mcpClientInitialized = true; } catch (error) { throw error; } }, 60000); // 60 second timeout for build and initialization // Clean up after all tests afterAll(async () => { // Only cleanup if we're the ones who initialized if (globalMCPClient && global.mcpClientInitialized) { try { await globalMCPClient.cleanup(); } catch (error) { // Silent cleanup } } // Stop the test server if (globalTestServer) { try { await globalTestServer.close(); } catch (error) { // Silent cleanup } } }, 10000); // Add test timeout extension jest.setTimeout(30000); // Export helper functions for tests export function getClient(): MCPTestHelper { if (!global.mcpClient) { throw new Error('MCP client not initialized'); } return global.mcpClient; } export function getTestServerUrl(): string { if (!global.testServerUrl) { throw new Error('Test server not initialized'); } return global.testServerUrl; } // Add fail function for tests that use it global.fail = (reason?: string | Error) => { throw new Error(reason instanceof Error ? reason.message : reason || 'Test failed'); };