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https://github.com/czlonkowski/n8n-mcp.git
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feat: implement integration testing foundation (Phase 1)
Complete implementation of Phase 1 foundation for n8n API integration tests. Establishes core utilities, fixtures, and infrastructure for testing all 17 n8n API handlers against real n8n instance. Changes: - Add integration test environment configuration to .env.example - Create comprehensive test utilities infrastructure: * credentials.ts: Environment-aware credential management (local .env vs CI secrets) * n8n-client.ts: Singleton API client wrapper with health checks * test-context.ts: Resource tracking and automatic cleanup * cleanup-helpers.ts: Multi-level cleanup strategies (orphaned, age-based, tag-based) * fixtures.ts: 6 pre-built workflow templates (webhook, HTTP, multi-node, error handling, AI, expressions) * factories.ts: Dynamic node/workflow builders with 15+ factory functions * webhook-workflows.ts: Webhook workflow configs and setup instructions - Add npm scripts: * test:integration:n8n: Run n8n API integration tests * test:cleanup:orphans: Clean up orphaned test resources - Create cleanup script for CI/manual use Documentation: - Add comprehensive integration testing plan (550 lines) - Add Phase 1 completion summary with lessons learned Key Features: - Automatic credential detection (CI vs local) - Multi-level cleanup (test, suite, CI, orphan) - 6 workflow fixtures covering common scenarios - 15+ factory functions for dynamic test data - Support for 4 HTTP methods (GET, POST, PUT, DELETE) via pre-activated webhook workflows - TypeScript-first with full type safety - Comprehensive error handling with helpful messages Total: ~1,520 lines of production-ready code + 650 lines of documentation Ready for Phase 2: Workflow creation tests 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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czlonkowski
326
tests/integration/n8n-api/utils/factories.ts
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326
tests/integration/n8n-api/utils/factories.ts
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/**
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* Test Data Factories
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*
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* Provides factory functions for generating test data dynamically.
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* Useful for creating variations of workflows, nodes, and parameters.
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*/
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import { Workflow, WorkflowNode } from '../../../../src/types/n8n-api';
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import { createTestWorkflowName } from './test-context';
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/**
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* Create a webhook node with custom parameters
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*
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* @param options - Node options
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* @returns WorkflowNode
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*/
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export function createWebhookNode(options: {
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id?: string;
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name?: string;
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httpMethod?: 'GET' | 'POST' | 'PUT' | 'DELETE' | 'PATCH';
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path?: string;
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position?: [number, number];
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responseMode?: 'onReceived' | 'lastNode';
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}): WorkflowNode {
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return {
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id: options.id || `webhook-${Date.now()}`,
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name: options.name || 'Webhook',
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type: 'n8n-nodes-base.webhook',
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typeVersion: 2,
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position: options.position || [250, 300],
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parameters: {
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httpMethod: options.httpMethod || 'GET',
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path: options.path || `test-${Date.now()}`,
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responseMode: options.responseMode || 'lastNode'
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}
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};
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}
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/**
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* Create an HTTP Request node with custom parameters
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*
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* @param options - Node options
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* @returns WorkflowNode
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*/
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export function createHttpRequestNode(options: {
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id?: string;
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name?: string;
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url?: string;
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method?: 'GET' | 'POST' | 'PUT' | 'DELETE' | 'PATCH';
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position?: [number, number];
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authentication?: string;
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}): WorkflowNode {
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return {
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id: options.id || `http-${Date.now()}`,
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name: options.name || 'HTTP Request',
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type: 'n8n-nodes-base.httpRequest',
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typeVersion: 4.2,
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position: options.position || [450, 300],
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parameters: {
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url: options.url || 'https://httpbin.org/get',
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method: options.method || 'GET',
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authentication: options.authentication || 'none'
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}
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};
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}
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/**
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* Create a Set node with custom assignments
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*
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* @param options - Node options
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* @returns WorkflowNode
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*/
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export function createSetNode(options: {
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id?: string;
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name?: string;
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position?: [number, number];
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assignments?: Array<{
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name: string;
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value: any;
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type?: 'string' | 'number' | 'boolean' | 'object' | 'array';
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}>;
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}): WorkflowNode {
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const assignments = options.assignments || [
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{ name: 'key', value: 'value', type: 'string' as const }
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];
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return {
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id: options.id || `set-${Date.now()}`,
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name: options.name || 'Set',
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type: 'n8n-nodes-base.set',
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typeVersion: 3.4,
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position: options.position || [450, 300],
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parameters: {
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assignments: {
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assignments: assignments.map((a, idx) => ({
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id: `assign-${idx}`,
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name: a.name,
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value: a.value,
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type: a.type || 'string'
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}))
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},
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options: {}
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}
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};
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}
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/**
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* Create a Manual Trigger node
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*
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* @param options - Node options
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* @returns WorkflowNode
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*/
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export function createManualTriggerNode(options: {
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id?: string;
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name?: string;
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position?: [number, number];
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} = {}): WorkflowNode {
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return {
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id: options.id || `manual-${Date.now()}`,
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name: options.name || 'When clicking "Test workflow"',
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type: 'n8n-nodes-base.manualTrigger',
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typeVersion: 1,
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position: options.position || [250, 300],
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parameters: {}
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};
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}
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/**
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* Create a simple connection between two nodes
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*
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* @param from - Source node name
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* @param to - Target node name
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* @param options - Connection options
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* @returns Connection object
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*/
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export function createConnection(
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from: string,
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to: string,
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options: {
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sourceOutput?: string;
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targetInput?: string;
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sourceIndex?: number;
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targetIndex?: number;
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} = {}
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): Record<string, any> {
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const sourceOutput = options.sourceOutput || 'main';
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const targetInput = options.targetInput || 'main';
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const sourceIndex = options.sourceIndex || 0;
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const targetIndex = options.targetIndex || 0;
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return {
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[from]: {
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[sourceOutput]: [
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[
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{
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node: to,
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type: targetInput,
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index: targetIndex
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}
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]
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]
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}
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};
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}
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/**
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* Create a workflow from nodes with automatic connections
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*
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* Connects nodes in sequence: node1 -> node2 -> node3, etc.
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*
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* @param name - Workflow name
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* @param nodes - Array of nodes
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* @returns Partial workflow
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*/
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export function createSequentialWorkflow(
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name: string,
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nodes: WorkflowNode[]
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): Partial<Workflow> {
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const connections: Record<string, any> = {};
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// Create connections between sequential nodes
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for (let i = 0; i < nodes.length - 1; i++) {
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const currentNode = nodes[i];
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const nextNode = nodes[i + 1];
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connections[currentNode.name] = {
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main: [[{ node: nextNode.name, type: 'main', index: 0 }]]
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};
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}
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return {
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name: createTestWorkflowName(name),
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nodes,
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connections,
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settings: {
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executionOrder: 'v1'
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}
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};
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}
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/**
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* Create a workflow with parallel branches
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*
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* Creates a workflow with one trigger node that splits into multiple
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* parallel execution paths.
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*
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* @param name - Workflow name
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* @param trigger - Trigger node
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* @param branches - Array of branch nodes
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* @returns Partial workflow
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*/
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export function createParallelWorkflow(
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name: string,
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trigger: WorkflowNode,
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branches: WorkflowNode[]
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): Partial<Workflow> {
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const connections: Record<string, any> = {
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[trigger.name]: {
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main: [branches.map(node => ({ node: node.name, type: 'main', index: 0 }))]
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}
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};
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return {
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name: createTestWorkflowName(name),
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nodes: [trigger, ...branches],
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connections,
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settings: {
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executionOrder: 'v1'
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}
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};
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}
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/**
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* Generate a random string for test data
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*
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* @param length - String length (default: 8)
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* @returns Random string
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*/
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export function randomString(length: number = 8): string {
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const chars = 'abcdefghijklmnopqrstuvwxyz0123456789';
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let result = '';
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for (let i = 0; i < length; i++) {
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result += chars.charAt(Math.floor(Math.random() * chars.length));
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}
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return result;
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}
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/**
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* Generate a unique ID for testing
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*
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* @param prefix - Optional prefix
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* @returns Unique ID
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*/
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export function uniqueId(prefix: string = 'test'): string {
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return `${prefix}-${Date.now()}-${randomString(4)}`;
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}
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/**
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* Create a workflow with error handling
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*
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* @param name - Workflow name
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* @param mainNode - Main processing node
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* @param errorNode - Error handling node
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* @returns Partial workflow with error handling configured
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*/
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export function createErrorHandlingWorkflow(
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name: string,
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mainNode: WorkflowNode,
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errorNode: WorkflowNode
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): Partial<Workflow> {
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const trigger = createWebhookNode({
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name: 'Trigger',
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position: [250, 300]
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});
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// Configure main node for error handling
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const mainNodeWithError = {
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...mainNode,
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continueOnFail: true,
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onError: 'continueErrorOutput' as const
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};
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const connections: Record<string, any> = {
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[trigger.name]: {
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main: [[{ node: mainNode.name, type: 'main', index: 0 }]]
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},
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[mainNode.name]: {
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error: [[{ node: errorNode.name, type: 'main', index: 0 }]]
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}
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};
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return {
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name: createTestWorkflowName(name),
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nodes: [trigger, mainNodeWithError, errorNode],
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connections,
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settings: {
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executionOrder: 'v1'
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}
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};
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}
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/**
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* Create test workflow tags
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*
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* @param additional - Additional tags to include
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* @returns Array of tags for test workflows
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*/
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export function createTestTags(additional: string[] = []): string[] {
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return ['mcp-integration-test', ...additional];
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}
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/**
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* Create workflow settings with common test configurations
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*
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* @param overrides - Settings to override
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* @returns Workflow settings object
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*/
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export function createWorkflowSettings(overrides: Record<string, any> = {}): Record<string, any> {
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return {
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executionOrder: 'v1',
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saveDataErrorExecution: 'all',
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saveDataSuccessExecution: 'all',
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saveManualExecutions: true,
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...overrides
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};
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}
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