cunnyborea-fe/test/e2e/runner.js

// 1. start the dev server using production config
process.env.NODE_ENV = 'testing'
var server = require('../../build/dev-server.js')

// 2. run the nightwatch test suite against it
// to run in additional browsers:
//    1. add an entry in test/e2e/nightwatch.conf.json under "test_settings"
//    2. add it to the --env flag below
// or override the environment flag, for example: `npm run e2e -- --env chrome,firefox`
// For more information on Nightwatch's config file, see
// http://nightwatchjs.org/guide#settings-file
var opts = process.argv.slice(2)
if (opts.indexOf('--config') === -1) {
  opts = opts.concat(['--config', 'test/e2e/nightwatch.conf.js'])
}
if (opts.indexOf('--env') === -1) {
  opts = opts.concat(['--env', 'chrome'])
}

var spawn = require('cross-spawn')
var runner = spawn('./node_modules/.bin/nightwatch', opts, { stdio: 'inherit' })

runner.on('exit', function (code) {
  server.close()
  process.exit(code)
})

runner.on('error', function (err) {
  server.close()
  throw err
})