bahmutov/cypress-highlight
GitHub: bahmutov/cypress-highlight
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# cypress-highlight
[][ci url] [][renovate-app] 

## Videos
- [Add A Red Border Around Elements That Have data-cy Attribute](https://youtu.be/pHzroBFY5V0)
- [Cypress-highlight Plugin Introduction](https://youtu.be/EIbSzT6QSxc)
## Install
$ npm install -D cypress-highlight
# or using Yarn
$ yarn add -D cypress-highlight
## Use
import { highlight } from 'cypress-highlight'
it('loads an app', () => {
cy.visit('/')
highlight()
// you can capture a screenshot to see the elements
// with good test selectors
cy.screenshot('highlights', { capture: 'runner' })
})
See [spec.js](./cypress/integration/spec.js)
### Multiple selectors
By default, this module highlight all elements with `data-cy` attribute. You can pass your own list of selectors to highlight. For example, to highlight all elements with data attribute `test-id` and all elements with class name `testable`, use
highlight('[data-test-id]', '.testable')
### Options object
You can pass multiple options using an object
// highlight all elements that have "data-cy" attribute
highlight({
selectors: '[data-cy]',
})
// highlight all elements that have "data-cy" attribute
// plus all elements with class "todo-li"
highlight({
selectors: ['[data-cy]', '.todo-li'],
})
#### failIfFound
You can highlight and then fail the test if any matching elements are found
highlight({
selectors: '[data-error]',
failIfFound: true,
})
#### failIfNotFound
You can fail the test if no matching elements are found
highlight({
selectors: 'li.todo',
failIfNotFound: true,
})
### highlightMissingTestIds
Highlights any buttons / input elements / anchor links without `data-cy` attribute. Fails by default if any are found.
import { highlightMissingTestIds } from 'cypress-highlight'
// somewhere during the test
highlightMissingTestIds()
// disable throwing an error on a found element
highlightMissingTestIds(false)

## Read
[Cypress best practices for selecting elements](https://on.cypress.io/best-practices#Selecting-Elements)
## Small print
Author: Gleb Bahmutov <gleb.bahmutov@gmail.com> © 2021
- [@bahmutov](https://twitter.com/bahmutov)
- [glebbahmutov.com](https://glebbahmutov.com)
- [blog](https://glebbahmutov.com/blog)
- [videos](https://www.youtube.com/glebbahmutov)
- [presentations](https://slides.com/bahmutov)
- [cypress.tips](https://cypress.tips)
License: MIT - do anything with the code, but don't blame me if it does not work.
## MIT License
Copyright (c) 2021 Gleb Bahmutov <gleb.bahmutov@gmail.com>
Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
标签:自定义脚本