update the master branch to the latest

build/webpack.test.config.js

@@ -0,0 +1,24 @@
+/**
+ * 用于单元测试
+ */
+
+const webpack = require('webpack');
+const merge = require('webpack-merge');
+const webpackBaseConfig = require('./webpack.base.config.js');
+
+
+const webpackConfig = merge(webpackBaseConfig, {
+    devtool: 'eval-source-map',
+    plugins: [
+        new webpack.DefinePlugin({
+            'process.env': {
+                NODE_ENV: '"testing"'
+            }
+        })
+    ]
+});
+
+// no need for app entry during tests
+delete webpackConfig.entry;
+
+module.exports = webpackConfig;