Fix coverage reporting only for src

webpack/test-coverage.config.js

@@ -1,12 +1,31 @@
 import _ from 'lodash';
+import path from 'path';
 import { jsLoader } from './base.config';
 import testConfig from './test.config';
 
+const paths = {
+  SRC: path.resolve('src'),
+  TEST: path.resolve('test'),
+  TOOLS: path.resolve('tools') // for tools/public-components.js
+};
+
 export default _.extend({}, testConfig, {
   module: {
     loaders: [
-      { test: /\.js/, loader: `${jsLoader}!isparta`, exclude: /node_modules|test[\/\\]/ },
-      { test: /\.js/, loader: jsLoader, include: /test[\/\\]/ }
+      {
+        test: /\.js/,
+        include: [paths.SRC, paths.TEST, paths.TOOLS],
+        loader: jsLoader,
+        exclude: /node_modules/
+      }
+    ],
+    preLoaders: [
+      {
+        test: /\.js/,
+        loader: 'isparta',
+        include: paths.SRC,
+        exclude: /node_modules/
+      }
     ]
   }
 });