What is @nrwl/cypress?
@nrwl/cypress is a package that provides Cypress integration for Nx workspaces. It allows you to run end-to-end tests using Cypress, a popular testing framework for web applications. This package helps in setting up Cypress within an Nx workspace, generating Cypress projects, and running tests efficiently.
What are @nrwl/cypress's main functionalities?
Generate Cypress Project
This command generates a new Cypress end-to-end (E2E) testing project for an existing application within an Nx workspace. The generated project will be configured to run Cypress tests for the specified application.
nx generate @nrwl/cypress:project my-app-e2e --project=my-app
Run Cypress Tests
This command runs the Cypress E2E tests for the specified project. It will open the Cypress test runner and execute the tests defined in the project.
nx run my-app-e2e:e2e
Configure Cypress
This is an example of a Cypress configuration file. It sets up node event listeners and specifies the base URL for the application being tested. This configuration is essential for customizing the behavior of Cypress tests.
module.exports = { e2e: { setupNodeEvents(on, config) { // implement node event listeners here }, baseUrl: 'http://localhost:4200' } };
Other packages similar to @nrwl/cypress
cypress
Cypress is a JavaScript end-to-end testing framework that is widely used for testing web applications. It provides a rich set of features for writing and running tests, including time travel, real-time reloads, and automatic waiting. Unlike @nrwl/cypress, which is tailored for Nx workspaces, Cypress can be used in any JavaScript project.
jest
Jest is a JavaScript testing framework developed by Facebook, primarily used for unit testing. While it is not specifically designed for end-to-end testing like Cypress, it can be extended with additional libraries to perform integration and E2E tests. Jest is known for its simplicity and ease of use, making it a popular choice for testing JavaScript applications.
testcafe
TestCafe is an end-to-end testing framework for web applications. It allows you to write tests in JavaScript or TypeScript and run them across different browsers. TestCafe is similar to Cypress in terms of functionality but does not require browser plugins or WebDriver, making it easier to set up and use.
What is Nx?
🔎 Nx is a set of Angular CLI power-ups for modern development.
Nx Helps You
Use Modern Tools
Using Nx, you can add Cypress, Jest, Prettier, and Nest into your dev workflow. Nx sets up these tools and allows you to use them seamlessly. Nx fully integrates with the other modern tools you already use and love.
Build Full-Stack Applications
With Nx, you can build full-stack applications using Angular and Node.js frameworks such as Nest and Express. You can share code between the frontend and the backend. And you can use the familiar ng build/test/serve
commands to power whole dev experience.
Develop Like Google
With Nx, you can develop multiple full-stack applications holistically and share code between them all in the same workspace. Nx provides advanced tools which help you scale your enterprise development. Nx helps enforce your organization’s standards and community best practices.
A la carte
Most importantly, you can use these power-ups a la carte. Just want to build a single Angular application using Cypress? Nx is still an excellent choice for that.
Does it replace Angular CLI?
Nx is not a replacement for Angular CLI. An Nx workspace is an Angular CLI workspace.
- You run same
ng build
, ng serve
commands. - You configure your projects in
angular.json
. - Anything you can do in a standard Angular CLI project, you can also do in an Nx workspace.
Getting Started
Creating an Nx Workspace
Using npx
npx create-nx-workspace myworkspace
Using npm init
npm init nx-workspace myworkspace
Using yarn create
yarn create nx-workspace myworkspace
Adding Nx to an Existing Angular CLI workspace
If you already have a regular Angular CLI project, you can add Nx power-ups by running:
ng add @nrwl/schematics
Creating First Application
Unlike the CLI, an Nx workspace starts blank. There are no applications to build, serve, and test. To create one run:
ng g application myapp
The result will look like this:
<workspace name>/
├── README.md
├── angular.json
├── apps/
│ ├── myapp/
│ │ ├── browserslist
│ │ ├── jest.conf.js
│ │ ├── src/
│ │ │ ├── app/
│ │ │ ├── assets/
│ │ │ ├── environments/
│ │ │ ├── favicon.ico
│ │ │ ├── index.html
│ │ │ ├── main.ts
│ │ │ ├── polyfills.ts
│ │ │ ├── styles.scss
│ │ │ └── test.ts
│ │ ├── tsconfig.app.json
│ │ ├── tsconfig.json
│ │ ├── tsconfig.spec.json
│ │ └── tslint.json
│ └── myapp-e2e/
│ ├── cypress.json
│ ├── src/
│ │ ├── fixtures/
│ │ │ └── example.json
│ │ ├── integration/
│ │ │ └── app.spec.ts
│ │ ├── plugins/
│ │ │ └── index.ts
│ │ └── support/
│ │ ├── app.po.ts
│ │ ├── commands.ts
│ │ └── index.ts
│ ├── tsconfig.e2e.json
│ ├── tsconfig.json
│ └── tslint.json
├── libs/
├── nx.json
├── package.json
├── tools/
├── tsconfig.json
└── tslint.json
All the files that the CLI would have in a new project are still here, just in a different folder structure which makes it easier to create more applications and libraries in the future.
Serving Application
Run ng serve myapp
to serve the newly generated application!
You are good to go!
Quick Start & Documentation
Documentation
Books
Videos
Talks
Podcasts and Shows
Misc
Want to help?
If you want to file a bug or submit a PR, read up on our guidelines for contributing.
Core Team