Vue.js/test/e2e/runner.js

var path = require('path')
var httpServer = require('http-server')
var server = httpServer.createServer({
  root: path.resolve(__dirname, '../../')
})

server.listen(8080)

var spawn = require('cross-spawn')
var args = [
  '--config', 'build/nightwatch.config.js',
  '--env', 'chrome,firefox'
]

if (process.argv[2]) {
  args.push('--test', 'test/e2e/specs/' + process.argv[2])
}

var runner = spawn('./node_modules/.bin/nightwatch', args, {
  stdio: 'inherit'
})

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

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