old_contents: var path = require('path');
  var webpackConfig = require('./webpack.config');
  
  module.exports = function (config) {
    var _config = {
  
      // 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: [
        {pattern: './karma-shim.js', watched: false},
        {pattern: './src/app/**/*.spec.ts', watched: true, included: false}
      ],
  
      // 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: {
        './karma-shim.js': ['webpack', 'sourcemap']
      },
  
      webpack: webpackConfig,
  
      webpackMiddleware: {
        // webpack-dev-middleware configuration
        // i. e.
        stats: 'errors-only'
      },
  
      coverageReporter: {
        dir: 'coverage/',
        reporters: [
          {type: 'text-summary'},
          {type: 'html'}
        ]
      },
  
      webpackServer: {
        noInfo: true // please don't spam the console when running in karma!
      },
  
      // test results reporter to use
      // possible values: 'dots', 'progress'
      // available reporters: https://npmjs.org/browse/keyword/karma-reporter
      reporters: ['progress', 'coverage'],
  
      // 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: false,
  
      // start these browsers
      // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
      browsers: ['PhantomJS'], // you can also use Chrome
  
      // Continuous Integration mode
      // if true, Karma captures browsers, runs the tests and exits
      singleRun: true
    };
  
    config.set(_config);
  
  };
  
new_contents: var path = require('path');
  var webpackConfig = require('./webpack.config');
  
  module.exports = function (config) {
    var _config = {
  
      // 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: [
        {pattern: './karma-shim.js', watched: false}
      ],
  
      // 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: {
        './karma-shim.js': ['webpack', 'sourcemap']
      },
  
      webpack: webpackConfig,
  
      webpackMiddleware: {
        // webpack-dev-middleware configuration
        // i. e.
        stats: 'errors-only'
      },
  
      coverageReporter: {
        dir: 'coverage/',
        reporters: [
          {type: 'text-summary'},
          {type: 'html'}
        ]
      },
  
      webpackServer: {
        noInfo: true // please don't spam the console when running in karma!
      },
  
      // test results reporter to use
      // possible values: 'dots', 'progress'
      // available reporters: https://npmjs.org/browse/keyword/karma-reporter
      reporters: ['progress', 'coverage'],
  
      // 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: false,
  
      // start these browsers
      // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
      browsers: ['PhantomJS'], // you can also use Chrome
  
      // Continuous Integration mode
      // if true, Karma captures browsers, runs the tests and exits
      singleRun: true
    };
  
    config.set(_config);
  
  };
  
subject: remove extra pattern in karma.conf.js