karma.conf.js

// Karma configuration
// Generated on Mon Dec 04 2017 14:56:38 GMT+0800 (CST)

module.exports = function (config) {
  config.set({

    // base path that will be used to resolve all patterns (eg. files, exclude)
    basePath: '',

    // frameworks to use
    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
    frameworks: ['jasmine'],

    // list of files / patterns to load in the browser
    files: [
      'test/**/*.spec.js'
    ],

    // list of files to exclude
    exclude: [],

    // preprocess matching files before serving them to the browser
    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
    preprocessors: {
      'test/unit/*.spec.js': ['webpack', 'sourcemap']
    },

    // webpack
    webpack: {
      devtool: 'inline-source-map',
      module: {
        rules: [{
          test: /\.js$/,
          exclude: /(node_modules|bower_components)/,
          loader: 'babel-loader'
        },
        {
          test: /\.vue$/,
          loader: 'vue-loader',
          options: {
            loaders: {
              js: 'babel-loader'
            },
            postLoaders: {
              js: 'istanbul-instrumenter-loader?esModules=true'
            }
          }
        },
        {
          test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
          loader: 'url-loader'
        }]
      }
    },

    // 依赖插件
    plugins: [
      'karma-chrome-launcher',
      'karma-jasmine',
      'karma-webpack',
      'karma-sourcemap-loader',
      'karma-coverage-istanbul-reporter'
    ],
    // test results reporter to use
    // possible values: 'dots', 'progress'
    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
    reporters: ['coverage-istanbul'],

    // web server port
    port: 9876,

    // enable / disable colors in the output (reporters and logs)
    colors: true,

    // level of logging
    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
    logLevel: config.LOG_INFO,

    // enable / disable watching file and executing tests whenever any file changes
    autoWatch: true,

    // start these browsers
    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
    browsers: ['Chrome'],

    // Continuous Integration mode
    // if true, Karma captures browsers, runs the tests and exits
    singleRun: false,

    // Concurrency level
    // how many browser should be started simultaneous
    concurrency: Infinity,
    coverageIstanbulReporter: {
      reports: ['html', 'text-summary'],
      dir: 'test/coverage/',
      fixWebpackSourcePaths: true,
      skipFilesWithNoCoverage: true,
      'report-config': {
        html: {
          subdir: 'html'
        }
      }
    }
  })
}