feat(router): change location when navigating

modules/angular2/test/alt_router/integration_spec.ts

@@ -28,8 +28,10 @@ import {
   Routes,
   RouterUrlSerializer,
   DefaultRouterUrlSerializer,
-  OnActivate
+  OnActivate,
+  Location
 } from 'angular2/alt_router';
+import {SpyLocation} from 'angular2/src/mock/location_mock';
 import {DOM} from 'angular2/src/platform/dom/dom_adapter';
 
 export function main() {
@@ -37,14 +39,28 @@ export function main() {
     beforeEachProviders(() => [
       provide(RouterUrlSerializer, {useClass: DefaultRouterUrlSerializer}),
       RouterOutletMap,
+      provide(Location, {useClass: SpyLocation}),
       provide(Router,
               {
-                useFactory: (resolver, urlParser, outletMap) =>
-                                new Router(RootCmp, resolver, urlParser, outletMap),
-                deps: [ComponentResolver, RouterUrlSerializer, RouterOutletMap]
+                useFactory: (resolver, urlParser, outletMap, location) =>
+                                new Router(RootCmp, resolver, urlParser, outletMap, location),
+                deps: [ComponentResolver, RouterUrlSerializer, RouterOutletMap, Location]
               })
     ]);
 
+    it('should update location when navigating',
+       fakeAsync(inject([Router, TestComponentBuilder, Location], (router, tcb, location) => {
+         let fixture = tcb.createFakeAsync(RootCmp);
+
+         router.navigateByUrl('/team/22/user/victor');
+         advance(fixture);
+         expect(location.path()).toEqual('/team/22/user/victor');
+
+         router.navigateByUrl('/team/33/simple');
+         advance(fixture);
+         expect(location.path()).toEqual('/team/33/simple');
+       })));
+
     it('should support nested routes',
        fakeAsync(inject([Router, TestComponentBuilder], (router, tcb) => {
          let fixture = tcb.createFakeAsync(RootCmp);

modules/angular2/test/alt_router/router_url_serializer_spec.ts

@@ -19,11 +19,9 @@ import {DefaultRouterUrlSerializer} from 'angular2/src/alt_router/router_url_ser
 import {UrlSegment} from 'angular2/src/alt_router/segments';
 
 export function main() {
-  describe('url parsing', () => {
+  describe('url serializer', () => {
     let url = new DefaultRouterUrlSerializer();
 
-    it('should throw on an empty urls', () => { expect(() => url.parse("")).toThrow(); });
-
     it('should parse the root url', () => {
       let tree = url.parse("/");
       expectSegment(tree.root, "");