chore: Add test with split chunks enabled

tests/integration/fixtures/webpack/split-chunks-issue-169/Gruntfile.js

@@ -0,0 +1,40 @@
+const path = require('path');
+const webpack = require('webpack');
+const loadGruntWebpackTasks = require('../../../../utils/loadGruntWebpackTasks');
+
+module.exports = function (grunt) {
+  grunt.initConfig({
+    webpack: {
+      test: {
+        mode: "none",
+        entry: path.join(__dirname, "entry"),
+        output: {
+          path: __dirname,
+          filename: "[name].bundle.js",
+        },
+        plugins: [
+          new webpack.DefinePlugin({ okey: JSON.stringify("dokey") }),
+        ],
+        optimization: {
+          splitChunks: {
+            cacheGroups: {
+              common: {
+                test: function (module) {
+                  if (module.resource) {
+                    return module.resource.includes('/uniquerandomfolder/');
+                  }
+                },
+                name: 'common',
+                minChunks: 1,
+                minSize: 0,
+                chunks: 'all'
+              }
+            }
+          }
+        }
+      },
+    },
+  });
+
+  loadGruntWebpackTasks(grunt);
+};

tests/integration/fixtures/webpack/split-chunks-issue-169/entry.js

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+require("./uniquerandomfolder/file");
+console.log(okey);

tests/integration/fixtures/webpack/split-chunks-issue-169/exec.js

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+assertGrunt.success();
+
+const content = fs.readFileSync(path.join(cwd, 'main.bundle.js'), 'utf-8');
+expect(content).toMatch(/console\.log\("dokey"\)/);
+
+// stats should be displayed by default
+expect(stdout).toMatch(/\[emitted\]/);
+expect(stdout).toMatch(/main\.bundle\.js/);
+expect(stdout).toMatch(/common\.bundle\.js/);
+