test: move platform-server integration test (#22810)

Now it lives in our standard location for tests against npm packages

PR Close #22810

integration/platform-server/src/server.ts

@@ -0,0 +1,44 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+/* tslint:disable:no-console  */
+require('zone.js/dist/zone-node.js');
+
+import {enableProdMode, NgModuleFactory} from '@angular/core';
+import {renderModuleFactory} from '@angular/platform-server';
+import * as express from 'express';
+
+import {HelloWorldServerModuleNgFactory} from './helloworld/app.server.ngfactory';
+const helloworld = require('raw-loader!./helloworld/index.html');
+
+import {TransferStateServerModuleNgFactory} from './transferstate/app.server.ngfactory';
+const transferstate = require('raw-loader!./transferstate/index.html');
+
+const app = express();
+
+function render<T>(moduleFactory: NgModuleFactory<T>, html: string) {
+  return (req, res) => {
+    renderModuleFactory(moduleFactory, {
+      document: html,
+      url: req.url,
+    }).then((response) => { res.send(response); });
+  };
+}
+
+enableProdMode();
+
+// Client bundles will be statically served from the built/ directory.
+app.use('/built', express.static('built'));
+
+// Keep the browser logs free of errors.
+app.get('/favicon.ico', (req, res) => { res.send(''); });
+
+//-----------ADD YOUR SERVER SIDE RENDERED APP HERE ----------------------
+app.get('/helloworld', render(HelloWorldServerModuleNgFactory, helloworld));
+app.get('/transferstate', render(TransferStateServerModuleNgFactory, transferstate));
+
+app.listen(9876, function() { console.log('Server listening on port 9876!'); });