karma.conf.js

var webpackTestConfig = require('./webpack.conf.js');

webpackTestConfig.devtool = "inline-source-map";

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', 'es6-shim'],

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

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

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

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

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

        // list of files / patterns to load in the browser
        files: [
            {pattern: './src/**/*.spec.js', watched: false }
        ],
        // preprocess matching files before serving them to the browser
        // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
        preprocessors: {
            './src/**/*.spec.js': ['webpack', 'sourcemap']
        },
        webpack: webpackTestConfig,

        webpackMiddleware: {
            noInfo: true
        }
    });
};