n8n-MCP

import { describe, it, expect } from 'vitest'; import { N8NDocumentationMCPServer } from '../../../src/mcp/server'; describe('Basic MCP Connection', () => { it('should initialize MCP server', async () => { const server = new N8NDocumentationMCPServer(); // Test executeTool directly - tools_documentation returns a string const result = await server.executeTool('tools_documentation', {}); expect(result).toBeDefined(); expect(typeof result).toBe('string'); expect(result).toContain('n8n MCP'); await server.shutdown(); }); it('should execute search_nodes tool', async () => { const server = new N8NDocumentationMCPServer(); try { // Search for a common node to verify database has content const result = await server.executeTool('search_nodes', { query: 'http', limit: 5 }); expect(result).toBeDefined(); expect(typeof result).toBe('object'); expect(result.results).toBeDefined(); expect(Array.isArray(result.results)).toBe(true); if (result.totalCount > 0) { // If database has nodes, we should get results expect(result.results.length).toBeLessThanOrEqual(5); expect(result.results.length).toBeGreaterThan(0); expect(result.results[0]).toHaveProperty('nodeType'); expect(result.results[0]).toHaveProperty('displayName'); } } catch (error: any) { // In test environment with empty database, expect appropriate error expect(error.message).toContain('Database is empty'); } await server.shutdown(); }); it('should search nodes by keyword', async () => { const server = new N8NDocumentationMCPServer(); try { // Search to check if database has nodes const searchResult = await server.executeTool('search_nodes', { query: 'set', limit: 1 }); const hasNodes = searchResult.totalCount > 0; const result = await server.executeTool('search_nodes', { query: 'webhook' }); expect(result).toBeDefined(); expect(typeof result).toBe('object'); expect(result.results).toBeDefined(); expect(Array.isArray(result.results)).toBe(true); // Only expect results if the database has nodes if (hasNodes) { expect(result.results.length).toBeGreaterThan(0); expect(result.totalCount).toBeGreaterThan(0); // Should find webhook node const webhookNode = result.results.find((n: any) => n.nodeType === 'nodes-base.webhook'); expect(webhookNode).toBeDefined(); expect(webhookNode.displayName).toContain('Webhook'); } } catch (error: any) { // In test environment with empty database, expect appropriate error expect(error.message).toContain('Database is empty'); } await server.shutdown(); }); });