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https://github.com/n8n-io/n8n.git
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refactor(Peekalink Node): Stricter typing for Peekalink api call + Tests (no-changelog) (#8125)
This PR is an example for how we can 1. improve typing and remove boilerplate code in may of our nodes 2. use nock to write effective unit tests for nodes that make external calls ## Review / Merge checklist - [x] PR title and summary are descriptive - [x] Add tests
This commit is contained in:
parent
21788d9153
commit
1d2666b37c
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@ -151,5 +151,11 @@ module.exports = {
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'n8n-nodes-base/node-param-type-options-password-missing': 'error',
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},
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},
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{
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files: ['**/*.test.ts', '**/test/**/*.ts'],
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rules: {
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'import/no-extraneous-dependencies': 'off',
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},
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},
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],
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};
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@ -1,41 +0,0 @@
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import type { OptionsWithUri } from 'request';
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import type {
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JsonObject,
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IExecuteFunctions,
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IHookFunctions,
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ILoadOptionsFunctions,
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IDataObject,
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} from 'n8n-workflow';
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import { NodeApiError } from 'n8n-workflow';
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export async function peekalinkApiRequest(
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this: IHookFunctions | IExecuteFunctions | ILoadOptionsFunctions,
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method: string,
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resource: string,
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body: any = {},
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qs: IDataObject = {},
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uri?: string,
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option: IDataObject = {},
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): Promise<any> {
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try {
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const credentials = await this.getCredentials('peekalinkApi');
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let options: OptionsWithUri = {
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headers: {
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'X-API-Key': credentials.apiKey,
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},
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method,
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qs,
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body,
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uri: uri || `https://api.peekalink.io${resource}`,
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json: true,
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};
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options = Object.assign({}, options, option);
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return await this.helpers.request(options);
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} catch (error) {
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throw new NodeApiError(this.getNode(), error as JsonObject);
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}
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}
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@ -1,14 +1,17 @@
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import type {
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IExecuteFunctions,
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IDataObject,
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INodeExecutionData,
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INodeType,
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INodeTypeDescription,
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import {
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Node,
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NodeApiError,
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type IExecuteFunctions,
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type INodeExecutionData,
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type INodeTypeDescription,
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type JsonObject,
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} from 'n8n-workflow';
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import { peekalinkApiRequest } from './GenericFunctions';
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export const apiUrl = 'https://api.peekalink.io';
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export class Peekalink implements INodeType {
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type Operation = 'preview' | 'isAvailable';
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export class Peekalink extends Node {
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description: INodeTypeDescription = {
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displayName: 'Peekalink',
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name: 'peekalink',
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@ -61,44 +64,31 @@ export class Peekalink implements INodeType {
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],
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};
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async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
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const items = this.getInputData();
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const returnData: IDataObject[] = [];
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const length = items.length;
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let responseData;
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const operation = this.getNodeParameter('operation', 0);
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async execute(context: IExecuteFunctions): Promise<INodeExecutionData[][]> {
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const items = context.getInputData();
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const operation = context.getNodeParameter('operation', 0) as Operation;
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const credentials = await context.getCredentials('peekalinkApi');
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for (let i = 0; i < length; i++) {
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try {
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if (operation === 'isAvailable') {
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const url = this.getNodeParameter('url', i) as string;
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const body: IDataObject = {
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link: url,
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};
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responseData = await peekalinkApiRequest.call(this, 'POST', '/is-available/', body);
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const returnData = await Promise.all(
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items.map(async (_, i) => {
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try {
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const link = context.getNodeParameter('url', i) as string;
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// eslint-disable-next-line @typescript-eslint/no-unsafe-return
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return await context.helpers.request({
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method: 'POST',
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uri: operation === 'preview' ? apiUrl : `${apiUrl}/is-available/`,
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body: { link },
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headers: { 'X-API-Key': credentials.apiKey },
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json: true,
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});
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} catch (error) {
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if (context.continueOnFail()) {
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return { error: error.message };
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}
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throw new NodeApiError(context.getNode(), error as JsonObject);
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}
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if (operation === 'preview') {
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const url = this.getNodeParameter('url', i) as string;
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const body: IDataObject = {
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link: url,
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};
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responseData = await peekalinkApiRequest.call(this, 'POST', '/', body);
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}
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if (Array.isArray(responseData)) {
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returnData.push.apply(returnData, responseData as IDataObject[]);
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} else {
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returnData.push(responseData as IDataObject);
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}
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} catch (error) {
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if (this.continueOnFail()) {
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returnData.push({ error: error.message });
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continue;
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}
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throw error;
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}
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}
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return [this.helpers.returnJsonArray(returnData)];
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}),
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);
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return [context.helpers.returnJsonArray(returnData)];
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}
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}
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171
packages/nodes-base/nodes/Peekalink/test/Peekalink.node.test.ts
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171
packages/nodes-base/nodes/Peekalink/test/Peekalink.node.test.ts
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@ -0,0 +1,171 @@
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import { apiUrl } from '../Peekalink.node';
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import type { WorkflowTestData } from '@test/nodes/types';
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import { executeWorkflow } from '@test/nodes/ExecuteWorkflow';
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import * as Helpers from '@test/nodes/Helpers';
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describe('Peekalink Node', () => {
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const exampleComPreview = {
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url: 'https://example.com/',
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domain: 'example.com',
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lastUpdated: '2022-11-13T22:43:20.986744Z',
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nextUpdate: '2022-11-20T22:43:20.982384Z',
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contentType: 'html',
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mimeType: 'text/html',
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size: 648,
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redirected: false,
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title: 'Example Domain',
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description: 'This domain is for use in illustrative examples in documents',
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name: 'EXAMPLE.COM',
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trackersDetected: false,
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};
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const tests: WorkflowTestData[] = [
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{
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description: 'should run isAvailable operation',
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input: {
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workflowData: {
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nodes: [
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{
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parameters: {},
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id: '8b7bb389-e4ef-424a-bca1-e7ead60e43eb',
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name: 'When clicking "Execute Workflow"',
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type: 'n8n-nodes-base.manualTrigger',
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typeVersion: 1,
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position: [740, 380],
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},
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{
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parameters: {
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operation: 'isAvailable',
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url: 'https://example.com/',
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},
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id: '7354367e-39a7-4fc1-8cdd-442f0b0c7b62',
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name: 'Peekalink',
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type: 'n8n-nodes-base.peekalink',
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typeVersion: 1,
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position: [960, 380],
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credentials: {
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peekalinkApi: 'token',
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},
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},
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],
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connections: {
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'When clicking "Execute Workflow"': {
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main: [
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[
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{
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node: 'Peekalink',
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type: 'main',
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index: 0,
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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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output: {
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nodeExecutionOrder: ['Start'],
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nodeData: {
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Peekalink: [
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[
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{
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json: {
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isAvailable: true,
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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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nock: {
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baseUrl: apiUrl,
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mocks: [
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{
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method: 'post',
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path: '/is-available/',
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statusCode: 200,
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responseBody: { isAvailable: true },
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},
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],
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},
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},
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{
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description: 'should run preview operation',
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input: {
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workflowData: {
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nodes: [
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{
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parameters: {},
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id: '8b7bb389-e4ef-424a-bca1-e7ead60e43eb',
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name: 'When clicking "Execute Workflow"',
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type: 'n8n-nodes-base.manualTrigger',
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typeVersion: 1,
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position: [740, 380],
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},
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{
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parameters: {
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operation: 'preview',
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url: 'https://example.com/',
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},
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id: '7354367e-39a7-4fc1-8cdd-442f0b0c7b62',
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name: 'Peekalink',
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type: 'n8n-nodes-base.peekalink',
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typeVersion: 1,
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position: [960, 380],
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credentials: {
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peekalinkApi: 'token',
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},
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},
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],
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connections: {
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'When clicking "Execute Workflow"': {
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main: [
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[
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{
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node: 'Peekalink',
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type: 'main',
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index: 0,
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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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output: {
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nodeExecutionOrder: ['Start'],
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nodeData: {
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Peekalink: [
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[
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{
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json: exampleComPreview,
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},
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],
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],
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},
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},
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nock: {
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baseUrl: apiUrl,
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mocks: [
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{
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method: 'post',
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path: '/',
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statusCode: 200,
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responseBody: exampleComPreview,
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},
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],
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},
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},
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];
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const nodeTypes = Helpers.setup(tests);
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test.each(tests)('$description', async (testData) => {
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const { result } = await executeWorkflow(testData, nodeTypes);
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const resultNodeData = Helpers.getResultNodeData(result, testData);
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resultNodeData.forEach(({ nodeName, resultData }) =>
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expect(resultData).toEqual(testData.output.nodeData[nodeName]),
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);
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expect(result.finished).toEqual(true);
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});
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});
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@ -1,3 +1,4 @@
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import nock from 'nock';
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import { WorkflowExecute } from 'n8n-core';
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import type { INodeTypes, IRun, IRunExecutionData } from 'n8n-workflow';
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import { createDeferredPromise, Workflow } from 'n8n-workflow';
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@ -5,6 +6,13 @@ import * as Helpers from './Helpers';
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import type { WorkflowTestData } from './types';
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export async function executeWorkflow(testData: WorkflowTestData, nodeTypes: INodeTypes) {
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if (testData.nock) {
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const { baseUrl, mocks } = testData.nock;
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const agent = nock(baseUrl);
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mocks.forEach(({ method, path, statusCode, responseBody }) =>
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agent[method](path).reply(statusCode, responseBody),
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);
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}
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const executionMode = testData.trigger?.mode ?? 'manual';
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const workflowInstance = new Workflow({
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id: 'test',
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@ -1,6 +1,7 @@
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import { readFileSync, readdirSync, mkdtempSync } from 'fs';
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import path from 'path';
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import { tmpdir } from 'os';
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import nock from 'nock';
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import { isEmpty } from 'lodash';
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import { get } from 'lodash';
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import { BinaryDataService, Credentials, constructExecutionMetaData } from 'n8n-core';
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@ -231,6 +232,16 @@ export function setup(testData: WorkflowTestData[] | WorkflowTestData) {
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testData = [testData];
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}
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if (testData.some((t) => !!t.nock)) {
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beforeAll(() => {
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nock.disableNetConnect();
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});
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afterAll(() => {
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nock.restore();
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});
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}
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const nodeTypes = new NodeTypes();
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const nodes = [...new Set(testData.flatMap((data) => data.input.workflowData.nodes))];
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