n8n-workflow-builder-mcp

const { describe, it, expect } = require('@jest/globals'); describe('list_available_nodes handler returns new JSON fields (1.103.0)', () => { it('includes usageExamplesPreview, ioSummary, and role', async () => { let handler; try { // Prefer source to ensure latest fields are present without requiring a build handler = require('../../src/mcp/tools/listAvailableNodes.ts').handler; } catch (e) { // Fallback to compiled artifact if TS transform is not available handler = require('../../dist/mcp/tools/listAvailableNodes.js').handler; } const result = await handler({}, {}); const payload = JSON.parse(result.content[0].text); expect(payload.success).toBe(true); expect(Array.isArray(payload.nodes)).toBe(true); if (payload.nodes.length === 0) return; // nothing to assert further if empty dataset const sample = payload.nodes[0]; // Basic shape expect(sample).toHaveProperty('nodeType'); expect(sample).toHaveProperty('displayName'); expect(sample).toHaveProperty('version'); // New metadata previews expect(sample).toHaveProperty('usageExamplesPreview'); expect(sample.usageExamplesPreview).toHaveProperty('count'); expect(sample.usageExamplesPreview).toHaveProperty('names'); expect(sample).toHaveProperty('ioSummary'); // ioSummary may be undefined for some nodes; if present, enforce shape if (sample.ioSummary) { expect(sample.ioSummary).toHaveProperty('inputs'); expect(sample.ioSummary).toHaveProperty('outputs'); } // Role comes from wiring.role when available expect(sample).toHaveProperty('role'); }); });