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karma-rollup-plugin

0.2.4 • Public • Published

karma-rollup-plugin Build Status

A Karma preprocessor plugin to offer seamless integration with rollup

This plugin is a Karma preprocessor to compile and bundle your spec entry point on the fly. It works seamless with all Rollup plugins.

Features

  • supports Rollup by default
  • supports both Babel and Buble as the ES2015 compiler
  • sourceMap
  • recompiling of dependencies when files changes
  • ES3, ES5, ES2015, ES2016, and ES2017 (with Babel or Buble)

Installation

The easiest way is to keep karma-rollup-plugin as a devDependency. You can simple do it by:

npm i karma-rollup-plugin --save-dev

Configuration

Note! As a rule of thumb, use of umd format doesn't make sense in tests, and will throw a warning without a module name.

Following code shows the default configuration

// karma.conf.js
module.exports = function (config) {
  config.set({
    preprocessors: {
     'test/**/*.js': ['rollup']
    },
    rollupPreprocessor: {
      // rollup settings. See Rollup documentation
      plugins: [
        buble() // ES2015 compiler by the same author as Rollup
      ],
      // will help to prevent conflicts between different tests entries
      format: 'iife',
      sourceMap: 'inline'
    }
  });
};

See Rollup documentation - JavaScript API for more details.

Why this plugin?

There exist a karma-rollup-preprocessor plugin for Karma, but it contains too many bugs, and doesn't seem to be maintained atm. This plugin try to stay true to the Rollup ecosystem.

Install

npm i karma-rollup-plugin

DownloadsWeekly Downloads

364

Version

0.2.4

License

MIT

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