#!/usr/bin/env node
/**
* Test script for Design System MCP Server
* Run with: npm test
*/
import { spawn } from 'child_process';
import { readFileSync } from 'fs';
// Load environment variables from .env file
function loadEnv() {
try {
const envContent = readFileSync('.env', 'utf8');
const token = envContent.match(/GITHUB_TOKEN=(.+)/)?.[1];
const owner = envContent.match(/GITHUB_OWNER=(.+)/)?.[1];
const repo = envContent.match(/GITHUB_REPO=(.+)/)?.[1];
if (token && owner && repo) {
process.env.GITHUB_TOKEN = token;
process.env.GITHUB_OWNER = owner;
process.env.GITHUB_REPO = repo;
return { token, owner, repo };
}
} catch (error) {
console.log('⚠️ Could not load .env file');
}
return false;
}
// Test GitHub API connectivity
async function testGitHubAPI() {
console.log('1. Testing GitHub API connectivity...');
const url = `https://api.github.com/repos/${process.env.GITHUB_OWNER}/${process.env.GITHUB_REPO}/contents/docs/components/breadcrumbs.md`;
try {
const response = await fetch(url, {
headers: {
'Authorization': `token ${process.env.GITHUB_TOKEN}`,
'Accept': 'application/vnd.github.v3+json',
'User-Agent': 'design-system-mcp-server'
}
});
if (response.ok) {
const data = await response.json();
const content = atob(data.content);
console.log(` ✅ GitHub API working (${content.length} chars fetched)`);
return true;
} else {
console.log(` ❌ GitHub API failed: ${response.status} ${response.statusText}`);
return false;
}
} catch (error) {
console.log(` ❌ GitHub API error: ${error.message}`);
return false;
}
}
// Test MCP server tools
function testMCPServer() {
return new Promise((resolve) => {
console.log('2. Testing MCP server tools...');
const server = spawn('node', ['build/index.js'], {
stdio: ['pipe', 'pipe', 'pipe'],
env: { ...process.env }
});
let responses = [];
let serverReady = false;
server.stdout.on('data', (data) => {
const output = data.toString();
try {
const parsed = JSON.parse(output);
responses.push(parsed);
} catch (e) {
// Ignore non-JSON output
}
});
server.stderr.on('data', (data) => {
if (data.toString().includes('running on stdio')) {
serverReady = true;
// Send test requests
sendTestRequests();
}
});
function sendTestRequests() {
const tests = [
{
jsonrpc: "2.0",
method: "tools/call",
params: { name: "list-categories", arguments: {} },
id: 1
},
{
jsonrpc: "2.0",
method: "tools/call",
params: { name: "get-component-details", arguments: { category: "components", componentName: "breadcrumbs" } },
id: 2
}
];
tests.forEach(test => {
server.stdin.write(JSON.stringify(test) + '\n');
});
// Wait for responses then check results
setTimeout(() => {
server.kill();
checkResults();
}, 3000);
}
function checkResults() {
if (responses.length >= 2) {
const categoriesResponse = responses.find(r => r.id === 1);
const detailsResponse = responses.find(r => r.id === 2);
if (categoriesResponse?.result?.content?.[0]?.text?.includes('categories')) {
console.log(' ✅ list-categories tool working');
} else {
console.log(' ❌ list-categories tool failed');
}
if (detailsResponse?.result?.content?.[0]?.text?.includes('Breadcrumbs')) {
console.log(' ✅ get-component-details tool working');
console.log(' ✅ GitHub content fetching working');
} else {
console.log(' ❌ get-component-details tool failed');
}
resolve(true);
} else {
console.log(' ❌ MCP server not responding properly');
resolve(false);
}
}
server.on('error', (error) => {
console.log(` ❌ Server error: ${error.message}`);
resolve(false);
});
// Timeout if server doesn't start
setTimeout(() => {
if (!serverReady) {
console.log(' ❌ Server failed to start');
server.kill();
resolve(false);
}
}, 5000);
});
}
async function runTests() {
console.log('🧪 Design System MCP Server Test\n');
console.log('═'.repeat(50));
// Load environment
const envLoaded = loadEnv();
if (!envLoaded || !process.env.GITHUB_TOKEN || !process.env.GITHUB_OWNER || !process.env.GITHUB_REPO) {
console.log('❌ Required environment variables not found in .env file');
console.log(' Please ensure .env contains:');
console.log(' GITHUB_TOKEN=your_token');
console.log(' GITHUB_OWNER=your_github_username');
console.log(' GITHUB_REPO=your_repo_name');
process.exit(1);
}
console.log('✅ Environment loaded');
// Test GitHub API
const apiWorking = await testGitHubAPI();
// Test MCP server (only if API is working)
let mcpWorking = false;
if (apiWorking) {
mcpWorking = await testMCPServer();
}
// Summary
console.log('\n' + '═'.repeat(50));
console.log('📋 Test Summary:');
console.log(` GitHub API: ${apiWorking ? '✅ Working' : '❌ Failed'}`);
console.log(` MCP Server: ${mcpWorking ? '✅ Working' : '❌ Failed'}`);
if (apiWorking && mcpWorking) {
console.log('\n🎉 All tests passed! Your MCP server is ready.');
} else {
console.log('\n⚠️ Some tests failed. Check the output above.');
process.exit(1);
}
}
runTests().catch(console.error);
