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Functional testing with cypress by ThisDot


  1. NodeJS v14.x.x installed
  2. run npm install to install dependencies
  3. run npm run cypress:setup to make sure cypress is verified on your machine
  4. check out the starting point with the following command
      git checkout tags/start -b code-along

Project structure

The project uses nx worspace. This is a monorepo style development environment. You can find the application source codes under the /apps folder.

During this training we are focusing on the /aps/customer and the /aps/backoffice front-end applications. For these two applications, cypress is already set up for you in the corresponding folders: /apps/customer-functional and /apps/backoffice-functional.


Exercise files

You can find the exercise test base files at the following locations:


During the training you might need to modify the source code of the demo applications. You only need to change html template files.

Cypress test runner commands

Use the Cypress test runner. For exercises 1-4, run npm run functional:customer:debug. For exercises 5-6, run npm run functional:backoffice:debug.

If you get lost

Anything can go wrong during a training, it might happen that you cannot finish a task in time. The repository has an existing solution backup system.

If you need to catch up with the instructor, run the following command:

git checkout tags/task{task number} -b {new_branch_name}
  • Replace {task number} with the task number you could not finish.
  • Replace {new_branch_name} with a unique branch name

For example if you could not finish Task 3, the following command would create a branch named got-stuck-1 at the beginning of Task 4 (task 3 would be finished)

git checkout tags/task3 -b got-stuck-1

JS Marathon instructions end here

Dummy API

In order to properly work with the Front-Ends, we developed a very simple, in-memory storage based back-end service.

If you would like to run the service in dev mode, run the following:

npm run start:api

This will serve the API at localhost:3333. You can check the Swagger documentation at localhost:3333/swagger/#/

Customer front-end

The customer front-end facing front-end communicates with the dummy API. Please make sure that you start the API first.

You can start the app in dev mode, by the following command:

npm run start:customer

This is going to start the front-end application at localhost:4200

Backoffice front-end

The backoffice front-end facing front-end communicates with the dummy API. Please make sure that you start the API first.

You can start the app in dev mode, by the following command:

npm run start:backoffice

This is going to start the front-end application at localhost:4300

Running functional tests

During the training session, running the cypress functional tests in the Cypress test runner can be done with the following commands:

npm run functional:customer:debug
npm run functional:backoffice:debug

You can run the same tests in headless mode with the following commands:

npm run functional:customer
npm run functional:backoffice

This project was generated using Nx.

🔎 Nx is a set of Extensible Dev Tools for Monorepos.

Quick Start & Documentation

Nx Documentation

10-minute video showing all Nx features

Interactive Tutorial

Adding capabilities to your workspace

Nx supports many plugins which add capabilities for developing different types of applications and different tools.

These capabilities include generating applications, libraries, etc as well as the devtools to test, and build projects as well.

Below are our core plugins:

  • Angular
    • ng add @nrwl/angular
  • React
    • ng add @nrwl/react
  • Web (no framework frontends)
    • ng add @nrwl/web
  • Nest
    • ng add @nrwl/nest
  • Express
    • ng add @nrwl/express
  • Node
    • ng add @nrwl/node

There are also many community plugins you could add.

Generate an application

Run ng g @nrwl/angular:app my-app to generate an application.

You can use any of the plugins above to generate applications as well.

When using Nx, you can create multiple applications and libraries in the same workspace.

Generate a library

Run ng g @nrwl/angular:lib my-lib to generate a library.

You can also use any of the plugins above to generate libraries as well.

Libraries are shareable across libraries and applications. They can be imported from @cat/mylib.

Development server

Run ng serve my-app for a dev server. Navigate to http://localhost:4200/. The app will automatically reload if you change any of the source files.

Code scaffolding

Run ng g component my-component --project=my-app to generate a new component.


Run ng build my-app to build the project. The build artifacts will be stored in the dist/ directory. Use the --prod flag for a production build.

Running unit tests

Run ng test my-app to execute the unit tests via Jest.

Run nx affected:test to execute the unit tests affected by a change.

Running end-to-end tests

Run ng e2e my-app to execute the end-to-end tests via Cypress.

Run nx affected:e2e to execute the end-to-end tests affected by a change.

Understand your workspace

Run nx dep-graph to see a diagram of the dependencies of your projects.

Further help

Visit the Nx Documentation to learn more.

☁ Nx Cloud

Computation Memoization in the Cloud

Nx Cloud pairs with Nx in order to enable you to build and test code more rapidly, by up to 10 times. Even teams that are new to Nx can connect to Nx Cloud and start saving time instantly.

Teams using Nx gain the advantage of building full-stack applications with their preferred framework alongside Nx’s advanced code generation and project dependency graph, plus a unified experience for both frontend and backend developers.

Visit Nx Cloud to learn more.


This is an example demo application for the 2021 March JS Marathon






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