karma.config.js

/* eslint-env node, mocha */

var path = require('path')

module.exports = config => {
  config.set({
    browsers: ['PhantomJS'],
    frameworks: ['mocha', 'sinon-chai'],
    reporters: ['spec', 'coverage'],
    files: ['specs/*.spec.js'],
    preprocessors: {
      './specs/*.spec.js': ['webpack', 'sourcemap']
    },
    webpack: {
      devtool: '#inline-source-map',
      resolve: {
        extensions: ['.js', '.vue'],
        alias: {
          'vue$': 'vue/dist/vue.esm.js',
          '@': path.resolve(__dirname, '../src')
        }
      },
      module: {
        rules: [
          {
            test: /\.vue$/,
            loader: 'vue-loader',
            options: {
              esModule: false
            }
          },
          {
            test: /\.js$/,
            loader: 'babel-loader',
            exclude: /node_modules/
          }
        ]
      }
    },
    webpackMiddleware: {
      noInfo: true
    },
    coverageReporter: {
      dir: './coverage',
      reporters: [
        { type: 'lcov', subdir: '.' },
        { type: 'text-summary' }
      ]
    },
    singleRun: true
  })
}