karma.conf.js

// Karma configuration
// Generated on Tue Apr 24 2018 22:43:58 GMT+0300 (FLE Daylight Time)

const webpack = require('webpack');

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: [
      'tests/**/*Spec.js'
    ],


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


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


    // test results reporter to use
    // possible values: 'dots', 'progress'
    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
    reporters: ['progress'],


    // 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: ['Firefox'],


    // 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,
    webpack: {
      module: {
        rules: [{
          enforce: 'pre',
          test: /\.js?$/,
          exclude: [/node_modules/, /assets/],
          loader: 'eslint-loader',
          include: __dirname + '/src' 
        },{
          test: /\.handlebars$/,
          loader: "handlebars-loader"
        }]
      },
      plugins: [
        new webpack.HotModuleReplacementPlugin(),
      ],
      devtool: 'eval-source-map',
      mode: 'development',
    },
  })
}