test-mcp-tools.js•5.53 kB
#!/usr/bin/env node
/**
* Test script to verify all MCP tools are working correctly
*/
const { spawn } = require('child_process');
const { EventEmitter } = require('events');
class MCPTester extends EventEmitter {
constructor() {
super();
this.serverProcess = null;
this.testResults = [];
}
async startServer() {
console.log('🚀 Starting n8n MCP server...');
this.serverProcess = spawn('npx', ['.'], {
cwd: '/Users/yasinboelhouwer/n8n-workflow-builder',
env: {
...process.env,
N8N_HOST: 'https://n8n.yasin.nu/api/v1',
N8N_API_KEY: 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIyMmE2NzM0NC05ZWI1LTQ0NmMtODczNi1lNWYyOGE4MjY4NTIiLCJpc3MiOiJuOG4iLCJhdWQiOiJwdWJsaWMtYXBpIiwiaWF0IjoxNzUzMzQzODU5fQ.PhpEIzzSGROy9Kok26SXmj9RRH1K3ArahexaVbQ2-Ho'
},
stdio: ['pipe', 'pipe', 'pipe']
});
return new Promise((resolve, reject) => {
let output = '';
this.serverProcess.stderr.on('data', (data) => {
output += data.toString();
if (output.includes('N8N Workflow Builder MCP server running on stdio')) {
console.log('✅ Server started successfully');
resolve();
}
});
this.serverProcess.on('error', (error) => {
console.error('❌ Failed to start server:', error);
reject(error);
});
setTimeout(() => {
reject(new Error('Server startup timeout'));
}, 10000);
});
}
async sendMCPRequest(method, params = {}) {
return new Promise((resolve, reject) => {
const request = {
jsonrpc: '2.0',
id: Date.now(),
method: method,
params: params
};
let response = '';
let timeout;
const onData = (data) => {
response += data.toString();
try {
const parsed = JSON.parse(response);
clearTimeout(timeout);
this.serverProcess.stdout.removeListener('data', onData);
resolve(parsed);
} catch (e) {
// Continue collecting data
}
};
this.serverProcess.stdout.on('data', onData);
timeout = setTimeout(() => {
this.serverProcess.stdout.removeListener('data', onData);
reject(new Error(`Timeout waiting for response to ${method}`));
}, 5000);
this.serverProcess.stdin.write(JSON.stringify(request) + '\n');
});
}
async testTool(toolName, params = {}) {
console.log(`🧪 Testing tool: ${toolName}`);
try {
const response = await this.sendMCPRequest('tools/call', {
name: toolName,
arguments: params
});
if (response.error) {
console.log(`❌ ${toolName} failed:`, response.error.message);
this.testResults.push({ tool: toolName, status: 'failed', error: response.error.message });
return false;
} else {
console.log(`✅ ${toolName} succeeded`);
this.testResults.push({ tool: toolName, status: 'passed' });
return true;
}
} catch (error) {
console.log(`❌ ${toolName} error:`, error.message);
this.testResults.push({ tool: toolName, status: 'error', error: error.message });
return false;
}
}
async runAllTests() {
try {
await this.startServer();
console.log('\n📋 Running MCP tool tests...\n');
// Test list_workflows
await this.testTool('list_workflows');
// Test get_workflow (this will fail if no workflows exist, but that's expected)
// await this.testTool('get_workflow', { id: 'test-id' });
// Test execute_workflow (this will fail if no workflows exist, but that's expected)
// await this.testTool('execute_workflow', { id: 'test-id' });
// Test create_workflow with a simple workflow
const testWorkflow = {
name: 'MCP Test Workflow',
nodes: [
{
id: 'start-node',
name: 'Start',
type: 'n8n-nodes-base.start',
typeVersion: 1,
position: [240, 300],
parameters: {}
}
],
connections: {},
settings: {
saveExecutionProgress: true,
saveManualExecutions: true
}
};
await this.testTool('create_workflow', { workflow: testWorkflow });
} catch (error) {
console.error('❌ Test execution failed:', error);
} finally {
this.cleanup();
}
}
cleanup() {
if (this.serverProcess) {
console.log('\n🧹 Cleaning up server process...');
this.serverProcess.kill();
}
console.log('\n📊 Test Results Summary:');
console.log('========================');
this.testResults.forEach(result => {
const status = result.status === 'passed' ? '✅' : '❌';
console.log(`${status} ${result.tool}: ${result.status}`);
if (result.error) {
console.log(` Error: ${result.error}`);
}
});
const passed = this.testResults.filter(r => r.status === 'passed').length;
const total = this.testResults.length;
console.log(`\n🎯 Results: ${passed}/${total} tests passed`);
if (passed === total) {
console.log('🎉 All tests passed! MCP server is working correctly.');
process.exit(0);
} else {
console.log('⚠️ Some tests failed. Check the errors above.');
process.exit(1);
}
}
}
// Run the tests
const tester = new MCPTester();
tester.runAllTests().catch(console.error);