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cypress-high-resolution

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cypress-high-resolution

A plugin to increase the video resolution for cypress run

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cypress-high-resolution renovate-app badge cypress version

A plugin to increase the video resolution for cypress run

Based on the blog post Generate High-Resolution Videos and Screenshots

Install

Add this plugin to your project as a dev dependency

# install using NPM
$ npm i -D cypress-high-resolution
# or install using Yarn
$ yarn add -D cypress-high-resolution

Add this plugin to your Cypress plugin file

// cypress/plugins/index.js
module.exports = (on, config) => {
  // https://github.com/bahmutov/cypress-high-resolution
  require('cypress-high-resolution')(on, config)
}

Use

When using non-interactive mode cypress run, you can specify the browser window size using the Cypress environment variables which can be passed via system OS environment variables, via cypress.json config file, via cypress.env.json file, or via command line arguments. For example, here is how to specify the video resolution using the command line arguments:

# generate ultra-high resolution 3840x2160 videos
$ npx cypress run --env resolution=4k
# generate videos 1200x1000
$ npx cypress run --env resolution=1200x1000
# alternative way: use an array
$ npx cypress run --env resolution=[1200,1000]
# generate high resolution video 1920x1080
$ npx cypress run --env resolution=high

Specifying the output resolution using the system OS variables

# 1920x1080 videos
CYPRESS_resolution=high npx cypress run
# small videos
CYPRESS_resolution=600x300 npx cypress run

You can set the video resolution in the cypress.json file

{
  "env": {
    "resolution": [1280, 720]
  }
}

Or a high resolution

{
  "env": {
    "resolution": "high"
  }
}

Tip: when increasing the browser window size, it might make sense to increase the viewport used by the Cypress to use those pixels!

Debugging

This plugin uses debug module to output verbose messages. Start Cypress with the environment variable DEBUG=cypress-high-resolution to see them. How to set an environment variable depends on the operating system. From a Linux terminal we can use

$ DEBUG=cypress-high-resolution npx cypress run

See also

Small print

Author: Gleb Bahmutov <gleb.bahmutov@gmail.com> © 2021

License: MIT - do anything with the code, but don't blame me if it does not work.

Support: if you find any problems with this module, email / tweet / open issue on Github

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.

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Package last updated on 28 Oct 2021

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