Add testing packages

karma.conf.js

@@ -0,0 +1,38 @@
+/* global module, require */
+
+const webpackConfig = require('./webpack.config.js');
+
+// Karma configuration 
+module.exports = function(config) {
+  config.set({
+    browsers: [ 'Chrome' ],
+    frameworks: [ 'mocha' ],
+
+    files: [
+      // each file acts as entry point for the webpack configuration 
+      { pattern: 'test/**/*.spec.js' },
+      { pattern: 'test/**/*.spec.jsx' }
+    ],
+
+    preprocessors: {
+      '**/*.js': ['webpack'],
+      '**/*.jsx': ['webpack']
+    },
+
+    webpack: {
+      module: webpackConfig.module,
+      resolve: webpackConfig.resolve
+    },
+
+    webpackMiddleware: {
+      stats: 'errors-only'
+    },
+
+    // See https://www.npmjs.com/package/karma-mocha
+    client: {
+      mocha: {
+        reporter: 'html'
+      }
+    }
+  });
+};