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 - it returns raw data const result = await server.executeTool('get_database_statistics', {}); expect(result).toBeDefined(); expect(typeof result).toBe('object'); expect(result.totalNodes).toBeDefined(); expect(result.statistics).toBeDefined(); await server.shutdown(); }); it('should execute list_nodes tool', async () => { const server = new N8NDocumentationMCPServer(); // First check if we have any nodes in the database const stats = await server.executeTool('get_database_statistics', {}); const hasNodes = stats.totalNodes > 0; const result = await server.executeTool('list_nodes', { limit: 5 }); expect(result).toBeDefined(); expect(typeof result).toBe('object'); expect(result.nodes).toBeDefined(); expect(Array.isArray(result.nodes)).toBe(true); if (hasNodes) { // If database has nodes, we should get up to 5 expect(result.nodes.length).toBeLessThanOrEqual(5); expect(result.nodes.length).toBeGreaterThan(0); expect(result.nodes[0]).toHaveProperty('nodeType'); expect(result.nodes[0]).toHaveProperty('displayName'); } else { // In test environment with empty database, we expect empty results expect(result.nodes).toHaveLength(0); } await server.shutdown(); }); it('should search nodes', async () => { const server = new N8NDocumentationMCPServer(); // First check if we have any nodes in the database const stats = await server.executeTool('get_database_statistics', {}); const hasNodes = stats.totalNodes > 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'); } else { // In test environment with empty database, we expect empty results expect(result.results).toHaveLength(0); expect(result.totalCount).toBe(0); } await server.shutdown(); }); });