cypress-rollup-preprocessor
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1.2.0 • Public • Published

cypress-rollup-preprocessor

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Cypress preprocessor for bundling JavaScript via rollup

Installation

NPM

First install node.js. Then:

npm install cypress-rollup-preprocessor --save-dev

This package relies on the following peer dependencies:

  • rollup

It is likely you already have these installed either directly or as a transient dependency, but if not, you will need to install them.

npm install --save-dev rollup

Compatibility

This version is only compatible with rollup 2.x+

Usage

Check Cypress' official documentation about preprocessors

Cypress >= 10

import { defineConfig } from 'cypress'

import rollupPreprocessor from 'cypress-rollup-preprocessor'

export default defineConfig({
  e2e: {
    setupNodeEvents (on, config) {
      on('file:preprocessor', rollupPreprocessor())
    },
  },
})

Cypress <= 9

const rollupPreprocessor = require("cypress-rollup-preprocessor");

module.exports = (on) => {
  on("file:preprocessor", rollupPreprocessor());
};

Examples

Options

Pass in options as the argument to rollup:

import rollupPreprocessor from 'cypress-rollup-preprocessor'
// Using the options from rollup.config.js
import rollupConfig from '<dir>/rollup.config'

const { output: outputOptions, ...inputOptions } = rollupConfig

// ...
  on('file:preprocessor', rollupPreprocessor({ inputOptions, outputOptions }))
// ...

inputOptions

Object of rollup input options. You can just require in the options from your rollup.config.js to use the same options as your app. Reference: https://rollupjs.org/guide/en/#inputoptions-object

outputOptions

Object of rollup output options. Reference: https://rollupjs.org/guide/en/#outputoptions-object

Contributing

Please read the Contributing guidelines.

Running Tests

To run tests, first install nodeunit and any dependencies via npm:

npm ci

Run tests with:

npm test

Inspiration

Many approaches, patterns and standards were copied from:

Alternatives

License

This project is licensed under the terms of the MIT license.

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Install

npm i cypress-rollup-preprocessor

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Version

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  • lmarqs