karma.conf.babel.js

import wpConf from './webpack.config.babel.js'
import { initial } from 'lodash/fp'
wpConf.entry = {}

// filter out WebpackBrowserPlugin for tests
wpConf.plugins = wpConf.plugins | initial

const karma_config = {
    browsers: ['Firefox'],
    customLaunchers: {
        Chrome_travis_ci: {
            base: 'Chrome',
            flags: ['--no-sandbox']
        }
    },
    reporters: ['mocha'],
    singleRun: true,
    frameworks: ['mocha'],
    files: [
        'node_modules/babel-polyfill/dist/polyfill.js',
        'test/setupTests.js',
        'test/**/*.js'
    ],
    preprocessors: {
        'test/**/*.js': ['webpack'],
        'src/**/*.js': ['webpack']
    },
    webpack: wpConf,
    webpackServer: {
        noInfo: true
    }
}

module.exports = config => {
    config.set(karma_config)
    if (process.env.TRAVIS)
        config.browsers = [
            // 'Chrome_travis_ci',
            // Chrome is atm buggy https://github.com/karma-runner/karma/issues/1656
            'Firefox']
    if (process.env['CHROME'])
        config.browsers = ['Chrome_travis_ci']
    if (process.env['BROWSERS'])
        config.browsers = ['Chrome', 'Firefox']
    if (process.env['LOOP'])
        config.singleRun = false
}