karma.conf.js

const resolve = require('rollup-plugin-node-resolve')
const commonjs = require('rollup-plugin-commonjs')
const toES5 = require('@rollup/plugin-buble')
process.env.CHROME_BIN = require('puppeteer').executablePath()

module.exports = function(config) {
  config.set({
    basePath: ''
  , frameworks: [ 'jasmine' ]
    , files: [
        'node_modules/jquery/dist/jquery.min.js'
      , { pattern: 'tests/test-bundle.js', watched: false }
      ]
  , exclude: [ 'test/sources/test.js', 'test/sources/attest.js' ]

  , autoWatch: true
  , singleRun: false

  // , preprocessors: { 'tests/**/*.js': ['rollup'] }
  // , rollupPreprocessor: {
  //     plugins: [resolve(), commonjs(), toES5()]
  //   , format: 'iife'
  //   , name: 'lawfetcher'
  //   , sourcemap: 'inline'
  //   }
  // , browserify: {
  //     debug: true
  //   , transform: [ [ 'babelify', { presets: ['es2015'] } ] ]
  //   }

    // possible values:
    // config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
  , logLevel: config.LOG_WARN
    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
  , reporters: ['dots']
  , colors: true

  , browsers: ['ChromeHeadless']
  , port: 9876
  , concurrency: Infinity
  })
}