Add mocha test bundling with webpack and test running

webpack.config.js

@@ -1,8 +1,10 @@
 var path = require('path'),
-    fs = require('fs');
+    fs = require('fs'),
+    _ = require('underscore'),
+    baseConfig;
 
-// webpack.config.js
-module.exports = {
+baseConfig = {
+  name: 'main',
   context: __dirname ,
   entry: {
     admin: './assets/js/admin.js',
@@ -46,3 +48,30 @@ module.exports = {
     'jquery': 'jQuery',
   }
 };
+
+module.exports = [
+  baseConfig,
+
+  // Configuration specific for testing
+  _.extend({}, baseConfig, {
+    name: 'test',
+    entry: {
+      testAjax: 'testAjax.js',
+    },
+    output: {
+      path: './tests/javascript/testBundles',
+      filename: '[name].js',
+    },
+    resolve: {
+      modulesDirectories: [
+        'node_modules',
+        'assets/js',
+        'tests/javascript/newsletter_editor'
+      ],
+      fallback: path.join(__dirname, 'node_modules'),
+      alias: {
+        'handlebars': 'handlebars/runtime.js'
+      }
+    },
+  })
+];