karma.conf.js

var path = require('path');

// Reference: http://karma-runner.github.io/0.12/config/configuration-file.html
module.exports = function karmaConfig (config) {
	config.set({
		frameworks: [
			// frameworks to use
			// available frameworks: https://npmjs.org/browse/keyword/karma-adapter
			'mocha', 'chai', 'es6-shim'
		],

		/**
		 * 配置请参考如下链接
		 * https://github.com/litixsoft/karma-mocha-reporter
         */
		reporters: ['mocha'],

		files: [
			// Grab all files in the app folder that contain .spec.
			// 'src/tests.webpack.js'
			'test/**/*.spec.js'
		],

		preprocessors: {
			// Reference: http://webpack.github.io/docs/testing.html
			// Reference: https://github.com/webpack/karma-webpack
			// Convert files with webpack and load sourcemaps
			'test/**/*.spec.js': ['webpack']
		},

		browsers: [
			// Run tests using PhantomJS
			'PhantomJS'
		],

		singleRun: true,

		webpack: {
			resolve: {
				root: [
					// 增加该配置可以方便require的使用
					path.resolve('./src')
				]
			}
		},

		// Hide webpack build information from output
		webpackMiddleware: {
			noInfo: 'errors-only'
		},

		plugins : [
			require('karma-mocha'),
			require('karma-chai'),
			require('karma-phantomjs-launcher'),
			require('karma-webpack'),
			require('karma-mocha-reporter'),
			require('karma-es6-shim')
		]
	});
};