test: Fix order by id test

Author: joshwiens

test/__snapshots__/webpack-integration.test.js.snap

@@ -1,5 +1,15 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`Webpack Integration Tests chunk-modules-ordered-by-id 1`] = `
+".block {
+	color: tomato;
+}
+.App {
+	color: black;
+}
+"
+`;
+
 exports[`Webpack Integration Tests common-async 1`] = `
 "a
 b

test/cases/chunk-modules-ordered-by-id/b.txt renamed to test/cases/chunk-modules-ordered-by-id/a.css

@@ -1,2 +1,2 @@
-require('./a');
-require('./b.txt');
+require('./a.css');
+require('./b.css');

test/cases/chunk-modules-ordered-by-id/a.js

@@ -1,7 +1,19 @@
-var ExtractTextPlugin = require("../../../");
+import ExtractTextPlugin from '../../../src/index';
+
 module.exports = {
-	entry: "./index",
-	plugins: [
-		new ExtractTextPlugin("file.css")
-	]
+  entry: './index',
+  module: {
+    loaders: [
+      {
+        test: /\.css$/,
+        use: ExtractTextPlugin.extract({
+          fallback: { loader: 'style-loader' },
+          use: { loader: 'css-loader', },
+        })
+      },
+    ],
+  },
+  plugins: [
+    new ExtractTextPlugin('file.css'),
+  ],
 };