feat(socket-engine): add providers parameter

modules/socket-engine/spec/index.spec.ts

@@ -1,6 +1,6 @@
 
 import { ServerModule } from '@angular/platform-server';
-import { NgModule, Component } from '@angular/core';
+import { NgModule, Component, Inject, InjectionToken } from '@angular/core';
 import 'zone.js';
 
 import { BrowserModule } from '@angular/platform-browser';
@@ -88,4 +88,28 @@ describe('test runner', () => {
     expect(result.error).toBeUndefined();
     done();
   });
+  it('should be able to inject some token', async(done) => {
+    const SOME_TOKEN = new InjectionToken<string>('SOME_TOKEN');
+    const someValue = {message: 'value' + new Date()};
+    @Component({
+      selector: 'root',
+      template: `message:{{_someToken.message}}`
+    })
+    class MockComponent {constructor(@Inject(SOME_TOKEN) public readonly _someToken: any) {}}
+    const appModule = makeTestingModule('', MockComponent);
+    const server = await startSocketEngine(appModule, [{provide: SOME_TOKEN, useValue: someValue}]);
+
+    const client = net.createConnection(9090, 'localhost', () => {
+      const renderOptions = {id: 1, url: '/path',
+      document: '<root></root>'} as SocketEngineRenderOptions;
+      client.write(JSON.stringify(renderOptions));
+    });
+
+    client.on('data', data => {
+      const res = JSON.parse(data.toString()) as SocketEngineResponse;
+      server.close();
+      expect(res.html).toContain(someValue.message);
+      done();
+    });
+  });
 });

modules/socket-engine/src/main.ts

@@ -7,7 +7,7 @@
  */
 import { ɵCommonEngine as CommonEngine,
   ɵRenderOptions as RenderOptions } from '@nguniversal/common/engine';
-import { NgModuleFactory, Type } from '@angular/core';
+import { NgModuleFactory, Type, StaticProvider } from '@angular/core';
 import * as net from 'net';
 
 export interface SocketEngineServer {
@@ -26,11 +26,12 @@ export interface SocketEngineResponse {
 
 export function startSocketEngine(
   moduleOrFactory: Type<{}> | NgModuleFactory<{}>,
+  providers: StaticProvider[] = [],
   host = 'localhost',
   port = 9090
 ): Promise<SocketEngineServer> {
   return new Promise((resolve, _reject) => {
-    const engine = new CommonEngine(moduleOrFactory);
+    const engine = new CommonEngine(moduleOrFactory, providers);
 
     const server = net.createServer(socket => {
       socket.on('data', async buff => {