testing-workshop-cypress

A full day testing workshop complete with application, exercise tests and speaker slides for Cypress.io

Requirements

Any computer: Mac, Windows, Linux
Node 12.0.0+ (LTS), check GH workflow file
git

In order to get the code and install dependencies

git clone [email protected]:cypress-io/testing-workshop-cypress.git
cd testing-workshop-cypress
npm install

If necessary, install dependencies inside TodoMVC folder

cd todomvc
npm install

Quick check ✅

You can test the installation by starting TodoMVC in the first terminal window

cd todomvc
npm start

and you should see in the terminal

> json-server --static . data.json --middlewares ./node_modules/json-server-reset


  \{^_^}/ hi!

  Loading data.json
  Loading ./node_modules/json-server-reset
  Done

  Resources
  http://localhost:3000/todos

  Home
  http://localhost:3000

Note for Windows users: if npm start throws an error, it is probably due to cd todomvc; ... first command in the npm start script. In this case change the working folder to "todomvc" and run npm start from there.

From the second terminal window you should be able to open Cypress in the root of the project with

$ npm run cy:open

> [email protected] cy:open /git/testing-workshop-cypress
> cypress open

Tip

You can use the installed start-server-and-test utility to start the app, open Cypress and then shutdown the app when you exit Cypress.

$ npm run dev

Application 💾

Vue.js + Vuex + REST server application that we are going to test is in the folder todomvc. This application and its full testing is described in this blog post. The application should run fine without network access.

Slides 🖥

See the presentation at https://testing-workshop-cypress.netlify.app/. Every section of the presentation has a subfolder in the slides folder with a Markdown file. The Markdown is rendered into HTML using Vite and Reveal.js combination. You can open the presentation by clicking on "link" in the table below.

Content 🗂

Beginner

	topic	folder	contents	slides
🔗	Introduction, TodoMVC application	todomvc	intro.md	link
🔗	Loading page	00-start	00-start	link
🔗	`cypress open` vs `cypress run`	01-basic	01-basic	link
🔗	Adding items test, `cypress.json` file	02-adding-items	02-adding-items	link
🔗	Selector Playground	03-selector-playground	03-selector-playground	link
🔗	Reset database using `cy.request`	04-reset-state	04-reset-state	link
🔗	Spy and stub XHR requests, fixtures	05-xhr	05-xhr	link
🔗	Access application code and data	06-app-data-store	06-app-data-store	link

Intermediate

	topic	folder	contents	slides
🔗	Setting up E2E tests on CI	07-ci	07-ci	link
🔗	Setting up Cypress Dashboard	07-ci	08-dashboard	link
🔗	Test reporters	-	09-reporters	link
🔗	Configuration	-	10-configuration	link
🔗	Retry-ability	11-retry-ability	11-retry-ability	link
🔗	Custom commands	12-custom-commands	12-custom-commands	link

Advanced

	topic	folder	contents	slides
🔗	Page Objects vs App Actions	13-app-actions	13-app-actions	link
🔗	Fixtures	14-fixtures	14-fixtures	link
🔗	Debugging	02-adding-items/demo.js	15-debugging	link
🔗	Preprocessors	16-preprocessors	16-preprocessors	link
🔗	Component testing	17-component-testing	17-component-testing	link
🔗	Backend code	18-backend	18-backend	link
🔗	Code coverage	19-code-coverage	19-code-coverage	link
🔗	Stubbing methods	20-stubbing	20-stubbing	link
	The end	-	end	link

For speakers 🎙

This workshop can take all day, but you can pick the sections you are interested in teaching at will and customize it into any time duration. Everyone is coding for the most part, except for CI and the Cypress Dashboard sections, where the usage was shown via slides and actual sites.

During the workshop, keep the todomvc app running in one shell, while each section 01-basic, 02-..., 03-... etc. has its own Cypress and specs subfolders cypress/integration/.... Usually a spec has several tests with placeholder comments. The workshop attendees are expected to make the tests pass using the knowledge from the slides and hints (and Cypress documentation). Note that most folders have a prepared spec.js file and an answer.js file. The answer.js file is ignored by Cypress using a setting in cypress.json.

The only exception is the folder 00-start. This is a folder for students to see how Cypress scaffolds example specs when you open Cypress for the very first time. In this folder students should execute...

cd 00-start
npm run cy:open

...and see the list of created example specs.

The slides are generated using Reveal.js from Markdown sources in the slides folder. You can show the slides locally by running

npm run slides:dev

The slides are deployed to Netlify automatically, see https://testing-workshop-cypress.netlify.app/

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