diff --git a/modules/@angular/router/src/common_router_providers.ts b/modules/@angular/router/src/common_router_providers.ts
index 1c408170eb..4b5300107b 100644
--- a/modules/@angular/router/src/common_router_providers.ts
+++ b/modules/@angular/router/src/common_router_providers.ts
@@ -47,6 +47,10 @@ export function setupRouter(
   return r;
 }
 
+export function rootRoute(router: Router): ActivatedRoute {
+  return router.routerState.root;
+}
+
 export function setupRouterInitializer(injector: Injector) {
   // https://github.com/angular/angular/issues/9101
   // Delay the router instantiation to avoid circular dependency (ApplicationRef ->
@@ -100,8 +104,7 @@ export function provideRouter(routes: Routes, config: ExtraOptions): any[] {
       ]
     },
 
-    RouterOutletMap,
-    {provide: ActivatedRoute, useFactory: (r: Router) => r.routerState.root, deps: [Router]},
+    RouterOutletMap, {provide: ActivatedRoute, useFactory: rootRoute, deps: [Router]},
 
     // Trigger initial navigation
     {provide: APP_INITIALIZER, multi: true, useFactory: setupRouterInitializer, deps: [Injector]},
diff --git a/modules/@angular/router/src/router_module.ts b/modules/@angular/router/src/router_module.ts
index b03edc34fc..259ea41574 100644
--- a/modules/@angular/router/src/router_module.ts
+++ b/modules/@angular/router/src/router_module.ts
@@ -9,7 +9,7 @@
 import {Location, LocationStrategy, PathLocationStrategy} from '@angular/common';
 import {AppModule, AppModuleFactoryLoader, ApplicationRef, ComponentResolver, Injector, OpaqueToken, SystemJsAppModuleLoader} from '@angular/core';
 
-import {ROUTER_CONFIGURATION, setupRouter} from './common_router_providers';
+import {ROUTER_CONFIGURATION, rootRoute, setupRouter} from './common_router_providers';
 import {RouterLink, RouterLinkWithHref} from './directives/router_link';
 import {RouterLinkActive} from './directives/router_link_active';
 import {RouterOutlet} from './directives/router_outlet';
@@ -20,6 +20,7 @@ import {ActivatedRoute} from './router_state';
 import {DefaultUrlSerializer, UrlSerializer} from './url_tree';
 
 
+
 /**
  * @stable
  */
@@ -35,8 +36,7 @@ export const ROUTER_PROVIDERS: any[] = [
       AppModuleFactoryLoader, ROUTES, ROUTER_CONFIGURATION
     ]
   },
-  RouterOutletMap,
-  {provide: ActivatedRoute, useFactory: (r: Router) => r.routerState.root, deps: [Router]},
+  RouterOutletMap, {provide: ActivatedRoute, useFactory: rootRoute, deps: [Router]},
   {provide: AppModuleFactoryLoader, useClass: SystemJsAppModuleLoader},
   {provide: ROUTER_CONFIGURATION, useValue: {enableTracing: false}}
 ];
diff --git a/modules/@angular/router/testing/router_testing_module.ts b/modules/@angular/router/testing/router_testing_module.ts
index 1019961f6f..ba8df0c29e 100644
--- a/modules/@angular/router/testing/router_testing_module.ts
+++ b/modules/@angular/router/testing/router_testing_module.ts
@@ -37,6 +37,12 @@ export class SpyAppModuleFactoryLoader implements AppModuleFactoryLoader {
   }
 }
 
+function setupTestingRouter(
+    resolver: ComponentResolver, urlSerializer: UrlSerializer, outletMap: RouterOutletMap,
+    location: Location, loader: AppModuleFactoryLoader, injector: Injector, routes: Routes) {
+  return new Router(null, resolver, urlSerializer, outletMap, location, injector, loader, routes);
+}
+
 /**
  * A module setting up the router that should be used for testing.
  * It provides spy implementations of Location, LocationStrategy, and AppModuleFactoryLoader.
@@ -64,12 +70,7 @@ export class SpyAppModuleFactoryLoader implements AppModuleFactoryLoader {
     {provide: AppModuleFactoryLoader, useClass: SpyAppModuleFactoryLoader},
     {
       provide: Router,
-      useFactory: (resolver: ComponentResolver, urlSerializer: UrlSerializer,
-                   outletMap: RouterOutletMap, location: Location, loader: AppModuleFactoryLoader,
-                   injector: Injector, routes: Routes) => {
-        return new Router(
-            null, resolver, urlSerializer, outletMap, location, injector, loader, routes);
-      },
+      useFactory: setupTestingRouter,
       deps: [
         ComponentResolver, UrlSerializer, RouterOutletMap, Location, AppModuleFactoryLoader,
         Injector, ROUTES