karma.conf.js

/* global module */
const path = require('path');

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
    // XXX: change this to ['mocha'] and uncomment the skeletor tests to run
    // the storage tests.
    frameworks: ['qunit', 'mocha'],

    // list of files / patterns to load in the browser
    files: [
      'node_modules/lodash/lodash.js',
      'node_modules/sinon/pkg/sinon.js',
      'test/vendor/json2.js',
      'dist/skeletor.js',
      'test/indexeddb.test.js',
      'test/localStorage.test.js',
      'test/sessionStorage.test.js',

      'test/setup/dom-setup.js',
      'test/collection.js',
      'test/events.js',
      'test/model.js',
      'test/noconflict.js',
      'test/router.js',
      'test/sync.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/indexeddb.test.js': ['webpack'],
      'test/localStorage.test.js': ['webpack'],
      'test/sessionStorage.test.js': ['webpack'],
    },
    webpack: {
      mode: 'development',
      devtool: 'inline-source-map',
      module: {
        rules: [
          {
            test: /\.js$/,
            use: {
              loader: 'babel-loader',
              options: {
                presets: [
                  [
                    '@babel/preset-env',
                    {
                      'targets': {
                        'browsers': ['>1%', 'not ie 11', 'not op_mini all', 'not dead'],
                      },
                    },
                  ],
                ],
                plugins: [
                  '@babel/plugin-proposal-optional-chaining',
                  '@babel/plugin-proposal-nullish-coalescing-operator',
                ],
              },
            },
          },
        ],
      },
      output: {
        path: path.resolve('test'),
        filename: '[name].out.js',
        chunkFilename: '[id].[chunkHash].js',
      },
    },

    // test results reporter to use
    // possible values: 'dots', 'progress'
    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
    reporters: ['progress'],
    client: {
      mocha: {
        reporter: 'html',
        ui: 'bdd',
      },
    },

    // 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: true,

    // Concurrency level
    // how many browser should be started simultaneous
    concurrency: Infinity,
  });
};