text: 'use strict';
  
  const webpack = require('webpack');
  const WATCH = process.argv.indexOf('--watch') > -1;
  
  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/entry.ts'
      ],
  
      // 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/entry.ts': ['webpack', 'sourcemap']
      },
  
      webpack: {
        resolve: {
          extensions: ['', '.ts', '.js'],
          alias: {
            sinon: 'sinon/pkg/sinon'
          }
        },
        module: {
          preLoaders: [{
            test: /\.ts$/, loader: 'tslint', exclude: /node_modules/
          }],
          loaders: [{
            test: /\.ts$/, loader: 'ts', exclude: /node_modules/
          }, {
            test: /sinon.js$/, loader: 'imports?define=>false,require=>false'
          }],
          postLoaders: [{
            test: /src\/.+\.ts$/,
            exclude: /(test|node_modules)/,
            loader: 'sourcemap-istanbul-instrumenter?force-sourcemap=true'
          }]
        },
        tslint: {
          emitErrors: !WATCH,
          failOnHint: false
        },
        plugins: [
          new webpack.SourceMapDevToolPlugin({
            filename: null,
            test: /\.(ts|js)($|\?)/i
          })
        ].concat(WATCH ? [] : [new webpack.NoErrorsPlugin()])
      },
  
      remapIstanbulReporter: {
        reports: { // eslint-disable-line
          html: 'coverage/html',
          'text-summary': null
        }
      },
  
      // test results reporter to use
      // possible values: 'dots', 'progress'
      // available reporters: https://npmjs.org/browse/keyword/karma-reporter
      reporters: ['progress', 'coverage', 'karma-remap-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: WATCH,
  
      // start these browsers
      // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
      browsers: ['PhantomJS'],
  
      // Continuous Integration mode
      // if true, Karma captures browsers, runs the tests and exits
      singleRun: !WATCH
    });
  };