feat: Add cypress e2e tests for signup and signin (#3490)

* feat: Added cypress setup files.

* feat: Added server bootup and initial test run.

* feat: Added e2e tests for signin, signup, and personalization form.

* feat: Added e2e tests for adding a function node.

* feat: Added set node and workflow execution steps.

* feat: Added test id to main sidebar.

* feat: Added test for creating a new workflow.

* feat: Finished test for creating a blank workflow

* chore: Removed screenshots from e2e tests.

* refactor: change e2e tests to per page structure

* feat: add cypress type enchancements

* feat: add typescript for cypress tests

* fix: remove component after merge

* feat: update cypress definitions

* feat: add cypress cleanup task

* refactor: update cypress script names

* ci: add smoke tests to workflow

* chore: remove cypress example files

* feat: update signup flow to be reusable

* fix: fix signup route for cypress page object

* fix: remove cypress reset command

* fix: remove unused imports

* fix: Add unhandled error catcher

cypress/constants.ts

@@ -0,0 +1,4 @@
+export const N8N_AUTH_COOKIE = 'n8n-auth';
+
+export const DEFAULT_USER_EMAIL = 'nathan@n8n.io';
+export const DEFAULT_USER_PASSWORD = 'CypressTest123';

cypress/e2e/0-smoke.cy.ts

@@ -0,0 +1,23 @@
+import {DEFAULT_USER_EMAIL, DEFAULT_USER_PASSWORD} from "../constants";
+import {randFirstName, randLastName} from "@ngneat/falso";
+
+const username = DEFAULT_USER_EMAIL;
+const password = DEFAULT_USER_PASSWORD;
+const firstName = randFirstName();
+const lastName = randLastName();
+
+describe('Authentication flow', () => {
+	it('should sign user up', () => {
+		cy.signup(username, firstName, lastName, password);
+	});
+
+	it('should sign user in', () => {
+		cy.on('uncaught:exception', (err, runnable) => {
+			expect(err.message).to.include('Not logged in');
+
+			return false;
+		})
+
+		cy.signin(username, password);
+	});
+});

cypress/pages/base.ts

@@ -0,0 +1,15 @@
+import { IE2ETestPage, IE2ETestPageElement } from "../types";
+
+
+export class BasePage implements IE2ETestPage {
+	elements: Record<string, IE2ETestPageElement> = {};
+	get(id: keyof BasePage['elements'], ...args: unknown[]): ReturnType<IE2ETestPageElement> {
+		const getter = this.elements[id];
+
+		if (!getter) {
+			throw new Error(`No element with id "${id}" found. Check your page object definition.`);
+		}
+
+		return getter(...args);
+	}
+}

cypress/pages/index.ts

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+export * from './base';
+export * from './signin';
+export * from './signup';
+export * from './workflows';

cypress/pages/signin.ts

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+import { BasePage } from "./base";
+
+export class SigninPage extends BasePage {
+	url = '/signin';
+	elements = {
+		form: () => cy.getByTestId('auth-form'),
+		email: () => cy.getByTestId('email'),
+		password: () => cy.getByTestId('password'),
+		submit: () => cy.get('button'),
+	}
+}

cypress/pages/signup.ts

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+import { BasePage } from "./base";
+
+export class SignupPage extends BasePage {
+	url = '/setup';
+	elements = {
+		form: () => cy.getByTestId('auth-form'),
+		email: () => cy.getByTestId('email'),
+		firstName: () => cy.getByTestId('firstName'),
+		lastName: () => cy.getByTestId('lastName'),
+		password: () => cy.getByTestId('password'),
+		submit: () => cy.get('button'),
+	}
+}

cypress/pages/workflows.ts

@@ -0,0 +1,6 @@
+import { BasePage } from "./base";
+
+export class WorkflowsPage extends BasePage {
+	url = '/workflows';
+	elements = {}
+}

cypress/support/commands.ts

@@ -0,0 +1,78 @@
+// ***********************************************
+// This example commands.js shows you how to
+// create various custom commands and overwrite
+// existing commands.
+//
+// For more comprehensive examples of custom
+// commands please read more here:
+// https://on.cypress.io/custom-commands
+// ***********************************************
+//
+//
+// -- This is a parent command --
+// Cypress.Commands.add('login', (email, password) => { ... })
+//
+//
+// -- This is a child command --
+// Cypress.Commands.add('drag', { prevSubject: 'element'}, (subject, options) => { ... })
+//
+//
+// -- This is a dual command --
+// Cypress.Commands.add('dismiss', { prevSubject: 'optional'}, (subject, options) => { ... })
+//
+//
+// -- This will overwrite an existing command --
+// Cypress.Commands.overwrite('visit', (originalFn, url, options) => { ... })
+
+import { WorkflowsPage, SigninPage, SignupPage } from "../pages";
+import { N8N_AUTH_COOKIE } from "../constants";
+
+
+Cypress.Commands.add('getByTestId', (selector, ...args) => {
+	return cy.get(`[data-test-id="${selector}"]`, ...args)
+})
+
+Cypress.Commands.add(
+	'signin',
+	(email, password) => {
+		const signinPage = new SigninPage();
+		const workflowsPage = new WorkflowsPage();
+
+		cy.session([email, password], () => {
+			cy.visit(signinPage.url);
+
+			signinPage.get('form').within(() => {
+				signinPage.get('email').type(email);
+				signinPage.get('password').type(password);
+				signinPage.get('submit').click();
+			});
+
+			// we should be redirected to /workflows
+			cy.url().should('include', workflowsPage.url);
+		},
+		{
+			validate() {
+				cy.getCookie(N8N_AUTH_COOKIE).should('exist');
+			},
+		});
+});
+
+Cypress.Commands.add('signup', (email, firstName, lastName, password) => {
+	const signupPage = new SignupPage();
+
+	cy.visit(signupPage.url);
+
+	signupPage.get('form').within(() => {
+		cy.url().then((url) => {
+			if (url.endsWith(signupPage.url)) {
+				signupPage.get('email').type(email);
+				signupPage.get('firstName').type(firstName);
+				signupPage.get('lastName').type(lastName);
+				signupPage.get('password').type(password);
+				signupPage.get('submit').click();
+			} else {
+				cy.log('User already signed up');
+			}
+		});
+	});
+})

cypress/support/e2e.ts

@@ -0,0 +1,17 @@
+// ***********************************************************
+// This example support/e2e.js is processed and
+// loaded automatically before your test files.
+//
+// This is a great place to put global configuration and
+// behavior that modifies Cypress.
+//
+// You can change the location of this file or turn off
+// automatically serving support files with the
+// 'supportFile' configuration option.
+//
+// You can read more here:
+// https://on.cypress.io/configuration
+// ***********************************************************
+
+import './commands'
+

cypress/support/index.ts

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+// Load type definitions that come with Cypress module
+/// <reference types="cypress" />
+
+declare global {
+	namespace Cypress {
+		interface Chainable {
+			getByTestId(selector: string, ...args: (Partial<Loggable & Timeoutable & Withinable & Shadow> | undefined)[]): Chainable<JQuery<HTMLElement>>
+			signin(email: string, password: string): void;
+			signup(email: string,  firstName: string, lastName: string, password: string): void;
+		}
+	}
+}
+
+export {};

cypress/types.ts

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+export type IE2ETestPageElement = (...args: unknown[]) =>
+	| Cypress.Chainable<JQuery<HTMLElement>>
+	| Cypress.Chainable<JQuery<HTMLButtonElement>>;
+
+export interface IE2ETestPage {
+	url?: string;
+	elements: Record<string, IE2ETestPageElement>;
+	get(id: string, ...args: unknown[]): ReturnType<IE2ETestPageElement>;
+}