Ecosyste.ms: Awesome

An open API service indexing awesome lists of open source software.

Awesome Lists | Featured Topics | Projects

https://github.com/testing-library/cypress-testing-library

🐅 Simple and complete custom Cypress commands and utilities that encourage good testing practices.
https://github.com/testing-library/cypress-testing-library

testing

Last synced: 5 days ago
JSON representation

🐅 Simple and complete custom Cypress commands and utilities that encourage good testing practices.

Host: GitHub
URL: https://github.com/testing-library/cypress-testing-library
Owner: testing-library
License: mit
Created: 2018-04-06T14:31:43.000Z (almost 7 years ago)
Default Branch: main
Last Pushed: 2024-05-31T12:53:54.000Z (8 months ago)
Last Synced: 2024-12-30T22:07:39.946Z (12 days ago)
Topics: testing
Language: JavaScript
Homepage: http://npm.im/@testing-library/cypress
Size: 660 KB
Stars: 1,805
Watchers: 30
Forks: 154
Open Issues: 41
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE

Awesome Lists containing this project

stars - cypress-testing-library - library | 1804 | (JavaScript)
stars - cypress-testing-library - library | 1804 | (JavaScript)

README

        


Cypress Testing Library




  



Simple and complete custom Cypress commands and utilities that encourage good

testing practices.


[**Read the docs**](https://testing-library.com/cypress) |

[Edit the docs](https://github.com/alexkrolick/testing-library-docs)



---

[![Build Status][build-badge]][build]

[![Code Coverage][coverage-badge]][coverage]

[![version][version-badge]][package]

[![downloads][downloads-badge]][npmtrends]

[![MIT License][license-badge]][license]

[![All Contributors][all-contributors-badge]](#contributors-)

[![PRs Welcome][prs-badge]][prs]

[![Code of Conduct][coc-badge]][coc]



  

    

  



## The problem

You want to use [`DOM Testing Library`][dom-testing-library] methods in your

[Cypress][cypress] tests.

## This solution

This allows you to use all the useful

[`DOM Testing Library`][dom-testing-library] methods in your tests.

## Table of Contents

- [Installation](#installation)

  - [With TypeScript](#with-typescript)

  - [Intellisense for JavaScript with VS Code](#intellisense-for-javascript-with-vs-code)

- [Usage](#usage)

  - [Differences from DOM Testing Library](#differences-from-dom-testing-library)

- [Config testIdAttribute](#config-testidattribute)

- [Other Solutions](#other-solutions)

- [Issues](#issues)

  - [🐛 Bugs](#-bugs)

  - [💡 Feature Requests](#-feature-requests)

- [Contributors ✨](#contributors-)

- [LICENSE](#license)

## Installation

This module is distributed via [npm][npm] which is bundled with [node][node] and

should be installed as one of your project's `devDependencies`:

```

npm install --save-dev @testing-library/cypress

```

### With TypeScript

Typings should be added as follows in `tsconfig.json`:

```json

{

  "compilerOptions": {

    "types": ["cypress", "@testing-library/cypress"]

  }

}

```

### Intellisense for JavaScript with VS Code

If you're not using TypeScript, you use VS Code, and want to have

code-completion with the methods from this library, simply add the following

line to your project's root-level `jsconfig.json` file:

```json

{

  "include": ["node_modules/cypress", "./cypress/**/*.js"]

}

```

## Usage

`Cypress Testing Library` extends Cypress' `cy` command.

Add this line to your project's `cypress/support/commands.js`:

```javascript

import '@testing-library/cypress/add-commands'

```

You can now use all of `DOM Testing Library`'s `findBy` and `findAllBy`

commands.

[See the `DOM Testing Library` docs for reference](https://testing-library.com)

You can find

[all Library definitions here](https://github.com/testing-library/cypress-testing-library/tree/main/types/index.d.ts).

To configure DOM Testing Library, use the following custom command:

```javascript

cy.configureCypressTestingLibrary(config)

```

To show some simple examples (from

[cypress/e2e/find.cy.js](cypress/e2e/find.cy.js)):

```javascript

cy.findAllByText('Button Text').should('exist')

cy.findAllByText('Non-existing Button Text').should('not.exist')

cy.findAllByLabelText('Label text', {timeout: 7000}).should('exist')

cy.findAllByText('Jackie Chan').click()

// findAllByText _inside_ a form element

cy.get('form').findAllByText('Button Text').should('exist')

```

### Differences from DOM Testing Library

`Cypress Testing Library` supports both jQuery elements and DOM nodes. This is

necessary because Cypress uses jQuery elements, while `DOM Testing Library`

expects DOM nodes. When you chain a query, it will get the first DOM node from

`subject` of the collection and use that as the `container` parameter for the

`DOM Testing Library` functions.

`query*` queries are not supported. You should use the `should('not.exist')`

assertion instead to check for the absence of an element.

`get*` queries are not supported. `find*` queries do not use the Promise API of

`DOM Testing Library`, but instead forward to the `get*` queries and use

Cypress' built-in retryability using error messages from `get*` APIs to forward

as error messages if a query fails.

`findAll*` can select more than one element and is closer in functionality to

how Cypress built-in commands work. `find*` commands will fail if more than one

element is found that matches the criteria which is not how built-in Cypress

commands work, but is provided for closer compatibility to other Testing

Libraries.

Cypress handles actions when there is only one element found. For example, the

following will work without having to limit to only 1 returned element. The

`cy.click` will automatically fail if more than 1 element is returned by the

`findAllByText`:

```javascript

cy.findAllByText('Some Text').click()

```

If you intend to enforce only 1 element is returned by a selector, the following

examples will both fail if more than one element is found.

```javascript

cy.findAllByText('Some Text').should('have.length', 1)

cy.findByText('Some Text').should('exist')

```

## Config testIdAttribute

If you would like to change the default testId from `data-testId` to

`data-test-id`, add to your project's `cypress/support/index.js`:

```javascript

import {configure} from '@testing-library/cypress'

configure({testIdAttribute: 'data-test-id'})

```

It accepts all configurations listed in

[DOM testing library](https://testing-library.com/docs/dom-testing-library/api-configuration).

## Other Solutions

I'm not aware of any, if you are please [make a pull request][prs] and add it

here!

## Issues

_Looking to contribute? Look for the [Good First Issue][good-first-issue]

label._

### 🐛 Bugs

Please file an issue for bugs, missing documentation, or unexpected behavior.

[**See Bugs**][bugs]

### 💡 Feature Requests

Please file an issue to suggest new features. Vote on feature requests by adding

a 👍. This helps maintainers prioritize what to work on.

[**See Feature Requests**][requests]

## Contributors ✨

Thanks goes to these people ([emoji key][emojis]):

  

    
_{Kent C. Dodds}
💻 📖 🚇 ⚠️

    
_{Ivan Babak}
💻 🤔

    
_{Łukasz Gandecki}
💻 ⚠️

    
_{Peter Kamps}
💻 📖 🤔 ⚠️

    
_{Airat Aminev}
💻 ⚠️ 🔧

    
_{Adrian Smijulj}
💻

    
_{Soo Jae Hwang}
🐛 💻 ⚠️

  

  

    
_{Justin Hall}
💻 ⚠️

    
_euzebe
📖

    
_jkdowdle
💻

    
_{Brian Ng}
💻

    
_{Kari Laari}
📖

    
_{Basti Buck}
💻

    
_{ShimiTheFirst}
🐛

  

  

    
_omerose
📖

    
_{Aaron Mc Adam}
💻 ⚠️

    
_{Karl Horky}
📖

    
_{Stefano Magni}
💻 ⚠️ 📖

    
_{Weyert de Boer}
💻

    
_{Simon Jespersen}
💻 👀

    
_{Adrià Fontcuberta}
🚇 📖 👀

  

  

    
_{Mikhail Guskov}
🐛

    
_{JD Gonzales}
📖

    
_{Yvonnick FRIN}
📖

    
_{Franck Abgrall}
👀

    
_{Tom Robinson}
💻 ⚠️

    
_{Nicholas Boll}
💻 ⚠️

    
_FlopieUtd
📖

  

  

    
_{Jaime Leonardo Suncin Cruz}
🐛 💻 ⚠️

    
_{Matt Travi}
💻

    
_{Michaël De Boey}
💻

    
_{Hu Chen}
📖

    
_{Frederick Fogerty}
💻

    
_{Kyle Holmberg}
📖

    
_{Mathis Møller}
💻 ⚠️

  

  

    
_{Simen Bekkhus}
💻

    
_{Amit Miran}
🚇

    
_{Dominik Lesch}
📖

    
_{Mateusz Burzyński}
💻

    
_{Niels de Bruin}
💻

    
_{Matan Borenkraout}
💻

  

This project follows the [all-contributors][all-contributors] specification.

Contributions of any kind welcome!

## LICENSE

MIT

[npm]: https://npmjs.com

[node]: https://nodejs.org

[build-badge]: https://img.shields.io/github/workflow/status/testing-library/cypress-testing-library/validate?logo=github&style=flat-square

[build]: https://github.com/testing-library/cypress-testing-library/actions?query=workflow%3Avalidate

[coverage-badge]: https://img.shields.io/codecov/c/github/testing-library/cypress-testing-library.svg?style=flat-square

[coverage]: https://codecov.io/github/testing-library/cypress-testing-library

[version-badge]: https://img.shields.io/npm/v/@testing-library/cypress.svg?style=flat-square

[package]: https://www.npmjs.com/package/@testing-library/cypress

[downloads-badge]: https://img.shields.io/npm/dm/@testing-library/cypress.svg?style=flat-square

[npmtrends]: http://www.npmtrends.com/@testing-library/cypress

[license-badge]: https://img.shields.io/npm/l/@testing-library/cypress.svg?style=flat-square

[license]: https://github.com/testing-library/cypress-testing-library/blob/main/LICENSE

[prs-badge]: https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat-square

[prs]: http://makeapullrequest.com

[coc-badge]: https://img.shields.io/badge/code%20of-conduct-ff69b4.svg?style=flat-square

[coc]: https://github.com/testing-library/cypress-testing-library/blob/main/other/CODE_OF_CONDUCT.md

[emojis]: https://allcontributors.org/docs/en/emoji-key

[all-contributors]: https://github.com/all-contributors/all-contributors

[all-contributors-badge]: https://img.shields.io/github/all-contributors/testing-library/cypress-testing-library?color=orange&style=flat-square

[bugs]: https://github.com/testing-library/cypress-testing-library/issues?utf8=%E2%9C%93&q=is%3Aissue+is%3Aopen+label%3A%22%F0%9F%90%9B+Bug%22+sort%3Acreated-desc

[requests]: https://github.com/testing-library/cypress-testing-library/issues?utf8=%E2%9C%93&q=is%3Aissue+is%3Aopen+sort%3Areactions-%2B1-desc+label%3Aenhancement

[good-first-issue]: https://github.com/testing-library/cypress-testing-library/issues?utf8=%E2%9C%93&q=is%3Aissue+is%3Aopen+sort%3Areactions-%2B1-desc+label%3A%22good+first+issue%22

[cypress]: https://cypress.io

[dom-testing-library]: https://github.com/testing-library/dom-testing-library