angular-cn/modules/@angular/router/test/router.spec.ts

/**
 * @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
 */

import 'rxjs/add/operator/map';

import {Location} from '@angular/common';
import {Component, NgModule, NgModuleFactoryLoader} from '@angular/core';
import {ComponentFixture, TestBed, TestComponentBuilder, addProviders, fakeAsync, inject, tick} from '@angular/core/testing';
import {expect} from '@angular/platform-browser/testing/matchers';
import {Observable} from 'rxjs/Observable';
import {of } from 'rxjs/observable/of';

import {ActivatedRoute, ActivatedRouteSnapshot, CanActivate, CanDeactivate, Event, NavigationCancel, NavigationEnd, NavigationError, NavigationStart, Params, ROUTER_DIRECTIVES, Resolve, Router, RouterModule, RouterStateSnapshot, RoutesRecognized, provideRoutes} from '../index';
import {RouterTestingModule, SpyNgModuleFactoryLoader} from '../testing';

describe('Integration', () => {
  beforeEach(() => {
    TestBed.configureTestingModule({
      imports: [RouterTestingModule],
      providers: [provideRoutes(
          [{path: '', component: BlankCmp}, {path: 'simple', component: SimpleCmp}])],
      declarations: [
        BlankCmp, SimpleCmp, TeamCmp, UserCmp, StringLinkCmp, DummyLinkCmp, AbsoluteLinkCmp,
        RelativeLinkCmp, DummyLinkWithParentCmp, LinkWithQueryParamsAndFragment, CollectParamsCmp,
        QueryParamsAndFragmentCmp, StringLinkButtonCmp, WrapperCmp, LinkInNgIf,
        ComponentRecordingRoutePathAndUrl, RouteCmp
      ]
    });
  });

  it('should navigate with a provided config',
     fakeAsync(inject(
         [Router, TestComponentBuilder, Location],
         (router: Router, tcb: TestComponentBuilder, location: Location) => {
           const fixture = createRoot(tcb, router, RootCmp);

           router.navigateByUrl('/simple');
           advance(fixture);

           expect(location.path()).toEqual('/simple');
         })));

  it('should work when an outlet is in an ngIf',
     fakeAsync(inject(
         [Router, TestComponentBuilder, Location],
         (router: Router, tcb: TestComponentBuilder, location: Location) => {
           const fixture = createRoot(tcb, router, RootCmp);

           router.resetConfig([{
             path: 'child',
             component: LinkInNgIf,
             children: [{path: 'simple', component: SimpleCmp}]
           }]);

           router.navigateByUrl('/child/simple');
           advance(fixture);

           expect(location.path()).toEqual('/child/simple');
         })));

  it('should work when an outlet is in an ngIf (and is removed)',
     fakeAsync(inject(
         [Router, TestComponentBuilder, Location],
         (router: Router, tcb: TestComponentBuilder, location: Location) => {
           @Component({
             selector: 'someRoot',
             template: `<div *ngIf="cond"><router-outlet></router-outlet></div>`,
             entryComponents: [BlankCmp, SimpleCmp]
           })
           class RootCmpWithLink {
             cond: boolean = true;
           }

           const fixture = createRoot(tcb, router, RootCmpWithLink);

           router.resetConfig(
               [{path: 'simple', component: SimpleCmp}, {path: 'blank', component: BlankCmp}]);

           router.navigateByUrl('/simple');
           advance(fixture);
           expect(location.path()).toEqual('/simple');

           const instance = fixture.componentInstance;
           instance.cond = false;
           advance(fixture);

           let recordedError: any = null;
           router.navigateByUrl('/blank').catch(e => recordedError = e);
           advance(fixture);
           expect(recordedError.message).toEqual('Cannot find primary outlet to load \'BlankCmp\'');
         })));

  it('should update location when navigating',
     fakeAsync(inject(
         [Router, TestComponentBuilder, Location],
         (router: Router, tcb: TestComponentBuilder, location: Location) => {
           const fixture = createRoot(tcb, router, RootCmp);

           router.resetConfig([{path: 'team/:id', component: TeamCmp}]);

           router.navigateByUrl('/team/22');
           advance(fixture);
           expect(location.path()).toEqual('/team/22');

           router.navigateByUrl('/team/33');
           advance(fixture);

           expect(location.path()).toEqual('/team/33');
         })));

  it('should skip location update when using NavigationExtras.skipLocationChange with navigateByUrl',
     fakeAsync(inject(
         [Router, TestComponentBuilder, Location],
         (router: Router, tcb: TestComponentBuilder, location: Location) => {
           const fixture = tcb.createFakeAsync(RootCmp);
           advance(fixture);

           router.resetConfig([{path: 'team/:id', component: TeamCmp}]);

           router.navigateByUrl('/team/22');
           advance(fixture);
           expect(location.path()).toEqual('/team/22');

           expect(fixture.debugElement.nativeElement).toHaveText('team 22 [ , right:  ]');

           router.navigateByUrl('/team/33', {skipLocationChange: true});
           advance(fixture);

           expect(location.path()).toEqual('/team/22');

           expect(fixture.debugElement.nativeElement).toHaveText('team 33 [ , right:  ]');
         })));

  it('should skip location update when using NavigationExtras.skipLocationChange with navigate',
     fakeAsync(inject(
         [Router, TestComponentBuilder, Location],
         (router: Router, tcb: TestComponentBuilder, location: Location) => {
           const fixture = tcb.createFakeAsync(RootCmp);
           advance(fixture);

           router.resetConfig([{path: 'team/:id', component: TeamCmp}]);

           router.navigate(['/team/22']);
           advance(fixture);
           expect(location.path()).toEqual('/team/22');

           expect(fixture.debugElement.nativeElement).toHaveText('team 22 [ , right:  ]');

           router.navigate(['/team/33'], {skipLocationChange: true});
           advance(fixture);

           expect(location.path()).toEqual('/team/22');

           expect(fixture.debugElement.nativeElement).toHaveText('team 33 [ , right:  ]');
         })));

  it('should navigate back and forward',
     fakeAsync(inject(
         [Router, TestComponentBuilder, Location],
         (router: Router, tcb: TestComponentBuilder, location: Location) => {
           const fixture = createRoot(tcb, router, RootCmp);

           router.resetConfig([{
             path: 'team/:id',
             component: TeamCmp,
             children: [
               {path: 'simple', component: SimpleCmp}, {path: 'user/:name', component: UserCmp}
             ]
           }]);


           router.navigateByUrl('/team/33/simple');
           advance(fixture);
           expect(location.path()).toEqual('/team/33/simple');

           router.navigateByUrl('/team/22/user/victor');
           advance(fixture);

           location.back();
           advance(fixture);
           expect(location.path()).toEqual('/team/33/simple');

           location.forward();
           advance(fixture);
           expect(location.path()).toEqual('/team/22/user/victor');
         })));

  it('should navigate when locations changes',
     fakeAsync(inject(
         [Router, TestComponentBuilder, Location],
         (router: Router, tcb: TestComponentBuilder, location: Location) => {
           const fixture = createRoot(tcb, router, RootCmp);

           router.resetConfig([{
             path: 'team/:id',
             component: TeamCmp,
             children: [{path: 'user/:name', component: UserCmp}]
           }]);

           const recordedEvents: any[] = [];
           router.events.forEach(e => recordedEvents.push(e));

           router.navigateByUrl('/team/22/user/victor');
           advance(fixture);

           (<any>location).simulateHashChange('/team/22/user/fedor');
           advance(fixture);

           (<any>location).simulateUrlPop('/team/22/user/fedor');
           advance(fixture);

           expect(fixture.debugElement.nativeElement).toHaveText('team 22 [ user fedor, right:  ]');

           expectEvents(recordedEvents, [
             [NavigationStart, '/team/22/user/victor'], [RoutesRecognized, '/team/22/user/victor'],
             [NavigationEnd, '/team/22/user/victor'],

             [NavigationStart, '/team/22/user/fedor'], [RoutesRecognized, '/team/22/user/fedor'],
             [NavigationEnd, '/team/22/user/fedor']
           ]);
         })));

  it('should update the location when the matched route does not change',
     fakeAsync(inject(
         [Router, TestComponentBuilder, Location],
         (router: Router, tcb: TestComponentBuilder, location: Location) => {
           const fixture = createRoot(tcb, router, RootCmp);

           router.resetConfig([{path: '**', component: CollectParamsCmp}]);

           router.navigateByUrl('/one/two');
           advance(fixture);
           const cmp = fixture.debugElement.children[1].componentInstance;
           expect(location.path()).toEqual('/one/two');
           expect(fixture.debugElement.nativeElement).toHaveText('collect-params');

           expect(cmp.recordedUrls()).toEqual(['one/two']);

           router.navigateByUrl('/three/four');
           advance(fixture);
           expect(location.path()).toEqual('/three/four');
           expect(fixture.debugElement.nativeElement).toHaveText('collect-params');
           expect(cmp.recordedUrls()).toEqual(['one/two', 'three/four']);
         })));

  it('should support secondary routes',
     fakeAsync(
         inject([Router, TestComponentBuilder], (router: Router, tcb: TestComponentBuilder) => {
           const fixture = createRoot(tcb, router, RootCmp);

           router.resetConfig([{
             path: 'team/:id',
             component: TeamCmp,
             children: [
               {path: 'user/:name', component: UserCmp},
               {path: 'simple', component: SimpleCmp, outlet: 'right'}
             ]
           }]);

           router.navigateByUrl('/team/22/(user/victor//right:simple)');
           advance(fixture);

           expect(fixture.debugElement.nativeElement)
               .toHaveText('team 22 [ user victor, right: simple ]');
         })));

  it('should deactivate outlets',
     fakeAsync(
         inject([Router, TestComponentBuilder], (router: Router, tcb: TestComponentBuilder) => {
           const fixture = createRoot(tcb, router, RootCmp);

           router.resetConfig([{
             path: 'team/:id',
             component: TeamCmp,
             children: [
               {path: 'user/:name', component: UserCmp},
               {path: 'simple', component: SimpleCmp, outlet: 'right'}
             ]
           }]);

           router.navigateByUrl('/team/22/(user/victor//right:simple)');
           advance(fixture);

           router.navigateByUrl('/team/22/user/victor');
           advance(fixture);

           expect(fixture.debugElement.nativeElement)
               .toHaveText('team 22 [ user victor, right:  ]');
         })));

  it('should deactivate nested outlets',
     fakeAsync(
         inject([Router, TestComponentBuilder], (router: Router, tcb: TestComponentBuilder) => {
           const fixture = createRoot(tcb, router, RootCmp);

           router.resetConfig([
             {
               path: 'team/:id',
               component: TeamCmp,
               children: [
                 {path: 'user/:name', component: UserCmp},
                 {path: 'simple', component: SimpleCmp, outlet: 'right'}
               ]
             },
             {path: '', component: BlankCmp}
           ]);

           router.navigateByUrl('/team/22/(user/victor//right:simple)');
           advance(fixture);

           router.navigateByUrl('/');
           advance(fixture);

           expect(fixture.debugElement.nativeElement).toHaveText('');
         })));

  it('should set query params and fragment',
     fakeAsync(
         inject([Router, TestComponentBuilder], (router: Router, tcb: TestComponentBuilder) => {
           const fixture = createRoot(tcb, router, RootCmp);

           router.resetConfig([{path: 'query', component: QueryParamsAndFragmentCmp}]);

           router.navigateByUrl('/query?name=1#fragment1');
           advance(fixture);
           expect(fixture.debugElement.nativeElement).toHaveText('query: 1 fragment: fragment1');

           router.navigateByUrl('/query?name=2#fragment2');
           advance(fixture);
           expect(fixture.debugElement.nativeElement).toHaveText('query: 2 fragment: fragment2');
         })));

  it('should push params only when they change',
     fakeAsync(
         inject([Router, TestComponentBuilder], (router: Router, tcb: TestComponentBuilder) => {
           const fixture = createRoot(tcb, router, RootCmp);

           router.resetConfig([{
             path: 'team/:id',
             component: TeamCmp,
             children: [{path: 'user/:name', component: UserCmp}]
           }]);

           router.navigateByUrl('/team/22/user/victor');
           advance(fixture);
           const team = fixture.debugElement.children[1].componentInstance;
           const user = fixture.debugElement.children[1].children[1].componentInstance;

           expect(team.recordedParams).toEqual([{id: '22'}]);
           expect(user.recordedParams).toEqual([{name: 'victor'}]);

           router.navigateByUrl('/team/22/user/fedor');
           advance(fixture);

           expect(team.recordedParams).toEqual([{id: '22'}]);
           expect(user.recordedParams).toEqual([{name: 'victor'}, {name: 'fedor'}]);
         })));

  it('should work when navigating to /',
     fakeAsync(
         inject([Router, TestComponentBuilder], (router: Router, tcb: TestComponentBuilder) => {
           const fixture = createRoot(tcb, router, RootCmp);

           router.resetConfig([
             {path: '', pathMatch: 'full', component: SimpleCmp},
             {path: 'user/:name', component: UserCmp}
           ]);

           router.navigateByUrl('/user/victor');
           advance(fixture);

           expect(fixture.debugElement.nativeElement).toHaveText('user victor');

           router.navigateByUrl('/');
           advance(fixture);

           expect(fixture.debugElement.nativeElement).toHaveText('simple');
         })));

  it('should cancel in-flight navigations',
     fakeAsync(
         inject([Router, TestComponentBuilder], (router: Router, tcb: TestComponentBuilder) => {
           const fixture = createRoot(tcb, router, RootCmp);

           router.resetConfig([{path: 'user/:name', component: UserCmp}]);

           const recordedEvents: any[] = [];
           router.events.forEach(e => recordedEvents.push(e));

           router.navigateByUrl('/user/init');
           advance(fixture);

           const user = fixture.debugElement.children[1].componentInstance;

           let r1: any, r2: any;
           router.navigateByUrl('/user/victor').then(_ => r1 = _);
           router.navigateByUrl('/user/fedor').then(_ => r2 = _);
           advance(fixture);

           expect(r1).toEqual(false);  // returns false because it was canceled
           expect(r2).toEqual(true);   // returns true because it was successful

           expect(fixture.debugElement.nativeElement).toHaveText('user fedor');
           expect(user.recordedParams).toEqual([{name: 'init'}, {name: 'fedor'}]);

           expectEvents(recordedEvents, [
             [NavigationStart, '/user/init'], [RoutesRecognized, '/user/init'],
             [NavigationEnd, '/user/init'],

             [NavigationStart, '/user/victor'], [NavigationStart, '/user/fedor'],

             [NavigationCancel, '/user/victor'], [RoutesRecognized, '/user/fedor'],
             [NavigationEnd, '/user/fedor']
           ]);
         })));

  it('should handle failed navigations gracefully',
     fakeAsync(
         inject([Router, TestComponentBuilder], (router: Router, tcb: TestComponentBuilder) => {
           const fixture = createRoot(tcb, router, RootCmp);

           router.resetConfig([{path: 'user/:name', component: UserCmp}]);

           const recordedEvents: any[] = [];
           router.events.forEach(e => recordedEvents.push(e));

           let e: any;
           router.navigateByUrl('/invalid').catch(_ => e = _);
           advance(fixture);
           expect(e.message).toContain('Cannot match any routes');

           router.navigateByUrl('/user/fedor');
           advance(fixture);

           expect(fixture.debugElement.nativeElement).toHaveText('user fedor');

           expectEvents(recordedEvents, [
             [NavigationStart, '/invalid'], [NavigationError, '/invalid'],

             [NavigationStart, '/user/fedor'], [RoutesRecognized, '/user/fedor'],
             [NavigationEnd, '/user/fedor']
           ]);
         })));

  it('should replace state when path is equal to current path',
     fakeAsync(inject(
         [Router, TestComponentBuilder, Location],
         (router: Router, tcb: TestComponentBuilder, location: Location) => {
           const fixture = createRoot(tcb, router, RootCmp);

           router.resetConfig([{
             path: 'team/:id',
             component: TeamCmp,
             children: [
               {path: 'simple', component: SimpleCmp}, {path: 'user/:name', component: UserCmp}
             ]
           }]);

           router.navigateByUrl('/team/33/simple');
           advance(fixture);

           router.navigateByUrl('/team/22/user/victor');
           advance(fixture);

           router.navigateByUrl('/team/22/user/victor');
           advance(fixture);

           location.back();
           advance(fixture);
           expect(location.path()).toEqual('/team/33/simple');
         })));

  it('should handle componentless paths',
     fakeAsync(inject(
         [Router, TestComponentBuilder, Location],
         (router: Router, tcb: TestComponentBuilder, location: Location) => {
           const fixture = createRoot(tcb, router, RootCmpWithTwoOutlets);

           router.resetConfig([
             {
               path: 'parent/:id',
               children: [
                 {path: 'simple', component: SimpleCmp},
                 {path: 'user/:name', component: UserCmp, outlet: 'right'}
               ]
             },
             {path: 'user/:name', component: UserCmp}
           ]);


           // navigate to a componentless route
           router.navigateByUrl('/parent/11/(simple//right:user/victor)');
           advance(fixture);
           expect(location.path()).toEqual('/parent/11/(simple//right:user/victor)');
           expect(fixture.debugElement.nativeElement)
               .toHaveText('primary [simple] right [user victor]');

           // navigate to the same route with different params (reuse)
           router.navigateByUrl('/parent/22/(simple//right:user/fedor)');
           advance(fixture);
           expect(location.path()).toEqual('/parent/22/(simple//right:user/fedor)');
           expect(fixture.debugElement.nativeElement)
               .toHaveText('primary [simple] right [user fedor]');

           // navigate to a normal route (check deactivation)
           router.navigateByUrl('/user/victor');
           advance(fixture);
           expect(location.path()).toEqual('/user/victor');
           expect(fixture.debugElement.nativeElement).toHaveText('primary [user victor] right []');

           // navigate back to a componentless route
           router.navigateByUrl('/parent/11/(simple//right:user/victor)');
           advance(fixture);
           expect(location.path()).toEqual('/parent/11/(simple//right:user/victor)');
           expect(fixture.debugElement.nativeElement)
               .toHaveText('primary [simple] right [user victor]');
         })));

  it('should emit an event when an outlet gets activated',
     fakeAsync(inject(
         [Router, TestComponentBuilder, Location],
         (router: Router, tcb: TestComponentBuilder, location: Location) => {
           @Component({
             selector: 'container',
             template:
                 `<router-outlet (activate)="recordActivate($event)" (deactivate)="recordDeactivate($event)"></router-outlet>`
           })
           class Container {
             activations: any[] = [];
             deactivations: any[] = [];

             recordActivate(component: any): void { this.activations.push(component); }

             recordDeactivate(component: any): void { this.deactivations.push(component); }
           }

           const fixture = createRoot(tcb, router, Container);
           const cmp = fixture.debugElement.componentInstance;

           router.resetConfig(
               [{path: 'blank', component: BlankCmp}, {path: 'simple', component: SimpleCmp}]);

           cmp.activations = [];
           cmp.deactivations = [];

           router.navigateByUrl('/blank');
           advance(fixture);

           expect(cmp.activations.length).toEqual(1);
           expect(cmp.activations[0] instanceof BlankCmp).toBe(true);

           router.navigateByUrl('/simple');
           advance(fixture);

           expect(cmp.activations.length).toEqual(2);
           expect(cmp.activations[1] instanceof SimpleCmp).toBe(true);
           expect(cmp.deactivations.length).toEqual(2);
           expect(cmp.deactivations[1] instanceof BlankCmp).toBe(true);
         })));

  it('should update url and router state before activating components',
     fakeAsync(inject(
         [Router, TestComponentBuilder, Location],
         (router: Router, tcb: TestComponentBuilder, location: Location) => {

           const fixture = createRoot(tcb, router, RootCmp);

           router.resetConfig([{path: 'cmp', component: ComponentRecordingRoutePathAndUrl}]);

           router.navigateByUrl('/cmp');
           advance(fixture);

           const cmp = fixture.debugElement.children[1].componentInstance;

           expect(cmp.url).toBe('/cmp');
           expect(cmp.path.length).toEqual(2);
         })));

  describe('data', () => {
    class ResolveSix implements Resolve<TeamCmp> {
      resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): number { return 6; }
    }

    beforeEach(() => {
      addProviders([
        {provide: 'resolveTwo', useValue: (a: any, b: any) => 2},
        {provide: 'resolveFour', useValue: (a: any, b: any) => 4},
        {provide: 'resolveSix', useClass: ResolveSix}
      ]);
    });

    it('should provide resolved data',
       fakeAsync(inject(
           [Router, TestComponentBuilder, Location],
           (router: Router, tcb: TestComponentBuilder, location: Location) => {
             const fixture = createRoot(tcb, router, RootCmpWithTwoOutlets);

             router.resetConfig([{
               path: 'parent/:id',
               data: {one: 1},
               resolve: {two: 'resolveTwo'},
               children: [
                 {path: '', data: {three: 3}, resolve: {four: 'resolveFour'}, component: RouteCmp},
                 {
                   path: '',
                   data: {five: 5},
                   resolve: {six: 'resolveSix'},
                   component: RouteCmp,
                   outlet: 'right'
                 }
               ]
             }]);

             router.navigateByUrl('/parent/1');
             advance(fixture);

             const primaryCmp = fixture.debugElement.children[1].componentInstance;
             const rightCmp = fixture.debugElement.children[3].componentInstance;

             expect(primaryCmp.route.snapshot.data).toEqual({one: 1, two: 2, three: 3, four: 4});
             expect(rightCmp.route.snapshot.data).toEqual({one: 1, two: 2, five: 5, six: 6});

             let primaryRecorded: any[] = [];
             primaryCmp.route.data.forEach((rec: any) => primaryRecorded.push(rec));

             let rightRecorded: any[] = [];
             rightCmp.route.data.forEach((rec: any) => rightRecorded.push(rec));

             router.navigateByUrl('/parent/2');
             advance(fixture);

             expect(primaryRecorded).toEqual([
               {one: 1, three: 3, two: 2, four: 4}, {one: 1, three: 3, two: 2, four: 4}
             ]);
             expect(rightRecorded).toEqual([
               {one: 1, five: 5, two: 2, six: 6}, {one: 1, five: 5, two: 2, six: 6}
             ]);
           })));
  });

  describe('router links', () => {
    it('should support string router links',
       fakeAsync(
           inject([Router, TestComponentBuilder], (router: Router, tcb: TestComponentBuilder) => {
             const fixture = createRoot(tcb, router, RootCmp);

             router.resetConfig([{
               path: 'team/:id',
               component: TeamCmp,
               children: [
                 {path: 'link', component: StringLinkCmp},
                 {path: 'simple', component: SimpleCmp}
               ]
             }]);

             router.navigateByUrl('/team/22/link');
             advance(fixture);
             expect(fixture.debugElement.nativeElement).toHaveText('team 22 [ link, right:  ]');

             const native = fixture.debugElement.nativeElement.querySelector('a');
             expect(native.getAttribute('href')).toEqual('/team/33/simple');
             native.click();
             advance(fixture);

             expect(fixture.debugElement.nativeElement).toHaveText('team 33 [ simple, right:  ]');
           })));

    it('should not preserve query params and fragment by default',
       fakeAsync(
           inject([Router, TestComponentBuilder], (router: Router, tcb: TestComponentBuilder) => {
             @Component({
               selector: 'someRoot',
               template: `<router-outlet></router-outlet><a routerLink="/home">Link</a>`,
               directives: ROUTER_DIRECTIVES
             })
             class RootCmpWithLink {
             }

             const fixture = createRoot(tcb, router, RootCmpWithLink);

             router.resetConfig([{path: 'home', component: SimpleCmp}]);

             const native = fixture.debugElement.nativeElement.querySelector('a');

             router.navigateByUrl('/home?q=123#fragment');
             advance(fixture);
             expect(native.getAttribute('href')).toEqual('/home');
           })));

    it('should update hrefs when query params or fragment change',
       fakeAsync(inject([Router, TestComponentBuilder], (router: Router, tcb: TestComponentBuilder) => {

         @Component({
           selector: 'someRoot',
           template:
               `<router-outlet></router-outlet><a routerLink="/home" preserveQueryParams preserveFragment>Link</a>`,
           directives: ROUTER_DIRECTIVES
         })
         class RootCmpWithLink {
         }

         const fixture = createRoot(tcb, router, RootCmpWithLink);

         router.resetConfig([{path: 'home', component: SimpleCmp}]);

         const native = fixture.debugElement.nativeElement.querySelector('a');

         router.navigateByUrl('/home?q=123');
         advance(fixture);
         expect(native.getAttribute('href')).toEqual('/home?q=123');

         router.navigateByUrl('/home?q=456');
         advance(fixture);
         expect(native.getAttribute('href')).toEqual('/home?q=456');

         router.navigateByUrl('/home?q=456#1');
         advance(fixture);
         expect(native.getAttribute('href')).toEqual('/home?q=456#1');
       })));

    it('should support using links on non-a tags',
       fakeAsync(
           inject([Router, TestComponentBuilder], (router: Router, tcb: TestComponentBuilder) => {
             const fixture = createRoot(tcb, router, RootCmp);

             router.resetConfig([{
               path: 'team/:id',
               component: TeamCmp,
               children: [
                 {path: 'link', component: StringLinkButtonCmp},
                 {path: 'simple', component: SimpleCmp}
               ]
             }]);

             router.navigateByUrl('/team/22/link');
             advance(fixture);
             expect(fixture.debugElement.nativeElement).toHaveText('team 22 [ link, right:  ]');

             const native = fixture.debugElement.nativeElement.querySelector('button');
             native.click();
             advance(fixture);

             expect(fixture.debugElement.nativeElement).toHaveText('team 33 [ simple, right:  ]');
           })));

    it('should support absolute router links',
       fakeAsync(
           inject([Router, TestComponentBuilder], (router: Router, tcb: TestComponentBuilder) => {
             const fixture = createRoot(tcb, router, RootCmp);

             router.resetConfig([{
               path: 'team/:id',
               component: TeamCmp,
               children: [
                 {path: 'link', component: AbsoluteLinkCmp},
                 {path: 'simple', component: SimpleCmp}
               ]
             }]);

             router.navigateByUrl('/team/22/link');
             advance(fixture);
             expect(fixture.debugElement.nativeElement).toHaveText('team 22 [ link, right:  ]');

             const native = fixture.debugElement.nativeElement.querySelector('a');
             expect(native.getAttribute('href')).toEqual('/team/33/simple');
             native.click();
             advance(fixture);

             expect(fixture.debugElement.nativeElement).toHaveText('team 33 [ simple, right:  ]');
           })));

    it('should support relative router links',
       fakeAsync(
           inject([Router, TestComponentBuilder], (router: Router, tcb: TestComponentBuilder) => {
             const fixture = createRoot(tcb, router, RootCmp);

             router.resetConfig([{
               path: 'team/:id',
               component: TeamCmp,
               children: [
                 {path: 'link', component: RelativeLinkCmp},
                 {path: 'simple', component: SimpleCmp}
               ]
             }]);

             router.navigateByUrl('/team/22/link');
             advance(fixture);
             expect(fixture.debugElement.nativeElement).toHaveText('team 22 [ link, right:  ]');

             const native = fixture.debugElement.nativeElement.querySelector('a');
             expect(native.getAttribute('href')).toEqual('/team/22/simple');
             native.click();
             advance(fixture);

             expect(fixture.debugElement.nativeElement).toHaveText('team 22 [ simple, right:  ]');
           })));

    it('should support top-level link',
       fakeAsync(
           inject([Router, TestComponentBuilder], (router: Router, tcb: TestComponentBuilder) => {
             const fixture = createRoot(tcb, router, RelativeLinkInIfCmp);
             advance(fixture);

             router.resetConfig(
                 [{path: 'simple', component: SimpleCmp}, {path: '', component: BlankCmp}]);

             router.navigateByUrl('/');
             advance(fixture);
             expect(fixture.debugElement.nativeElement).toHaveText(' ');
             const cmp = fixture.debugElement.componentInstance;

             cmp.show = true;
             advance(fixture);

             expect(fixture.debugElement.nativeElement).toHaveText('link ');
             const native = fixture.debugElement.nativeElement.querySelector('a');

             expect(native.getAttribute('href')).toEqual('/simple');
             native.click();
             advance(fixture);

             expect(fixture.debugElement.nativeElement).toHaveText('link simple');
           })));

    it('should support query params and fragments',
       fakeAsync(inject(
           [Router, Location, TestComponentBuilder],
           (router: Router, location: Location, tcb: TestComponentBuilder) => {
             const fixture = createRoot(tcb, router, RootCmp);

             router.resetConfig([{
               path: 'team/:id',
               component: TeamCmp,
               children: [
                 {path: 'link', component: LinkWithQueryParamsAndFragment},
                 {path: 'simple', component: SimpleCmp}
               ]
             }]);

             router.navigateByUrl('/team/22/link');
             advance(fixture);

             const native = fixture.debugElement.nativeElement.querySelector('a');
             expect(native.getAttribute('href')).toEqual('/team/22/simple?q=1#f');
             native.click();
             advance(fixture);

             expect(fixture.debugElement.nativeElement).toHaveText('team 22 [ simple, right:  ]');

             expect(location.path()).toEqual('/team/22/simple?q=1#f');
           })));
  });

  describe('redirects', () => {
    it('should work', fakeAsync(inject(
                          [Router, TestComponentBuilder, Location],
                          (router: Router, tcb: TestComponentBuilder, location: Location) => {
                            const fixture = createRoot(tcb, router, RootCmp);

                            router.resetConfig([
                              {path: 'old/team/:id', redirectTo: 'team/:id'},
                              {path: 'team/:id', component: TeamCmp}
                            ]);

                            router.navigateByUrl('old/team/22');
                            advance(fixture);

                            expect(location.path()).toEqual('/team/22');
                          })));
  });

  describe('guards', () => {
    describe('CanActivate', () => {
      describe('should not activate a route when CanActivate returns false', () => {
        beforeEach(() => {
          addProviders([{provide: 'alwaysFalse', useValue: (a: any, b: any) => false}]);
        });

        it('works',
           fakeAsync(inject(
               [Router, TestComponentBuilder, Location],
               (router: Router, tcb: TestComponentBuilder, location: Location) => {
                 const fixture = createRoot(tcb, router, RootCmp);

                 router.resetConfig(
                     [{path: 'team/:id', component: TeamCmp, canActivate: ['alwaysFalse']}]);

                 router.navigateByUrl('/team/22');
                 advance(fixture);

                 expect(location.path()).toEqual('/');
               })));
      });

      describe(
          'should not activate a route when CanActivate returns false (componentless route)',
          () => {
            beforeEach(() => {
              addProviders([{provide: 'alwaysFalse', useValue: (a: any, b: any) => false}]);
            });

            it('works', fakeAsync(inject(
                            [Router, TestComponentBuilder, Location],
                            (router: Router, tcb: TestComponentBuilder, location: Location) => {
                              const fixture = createRoot(tcb, router, RootCmp);

                              router.resetConfig([{
                                path: 'parent',
                                canActivate: ['alwaysFalse'],
                                children: [{path: 'team/:id', component: TeamCmp}]
                              }]);

                              router.navigateByUrl('parent/team/22');
                              advance(fixture);

                              expect(location.path()).toEqual('/');
                            })));
          });

      describe('should activate a route when CanActivate returns true', () => {
        beforeEach(() => {
          addProviders([{
            provide: 'alwaysTrue',
            useValue: (a: ActivatedRouteSnapshot, s: RouterStateSnapshot) => true
          }]);
        });

        it('works',
           fakeAsync(inject(
               [Router, TestComponentBuilder, Location],
               (router: Router, tcb: TestComponentBuilder, location: Location) => {
                 const fixture = createRoot(tcb, router, RootCmp);

                 router.resetConfig(
                     [{path: 'team/:id', component: TeamCmp, canActivate: ['alwaysTrue']}]);

                 router.navigateByUrl('/team/22');
                 advance(fixture);

                 expect(location.path()).toEqual('/team/22');
               })));
      });

      describe('should work when given a class', () => {
        class AlwaysTrue implements CanActivate {
          canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
            return true;
          }
        }

        beforeEach(() => { addProviders([AlwaysTrue]); });

        it('works', fakeAsync(inject(
                        [Router, TestComponentBuilder, Location],
                        (router: Router, tcb: TestComponentBuilder, location: Location) => {
                          const fixture = createRoot(tcb, router, RootCmp);

                          router.resetConfig(
                              [{path: 'team/:id', component: TeamCmp, canActivate: [AlwaysTrue]}]);

                          router.navigateByUrl('/team/22');
                          advance(fixture);

                          expect(location.path()).toEqual('/team/22');
                        })));
      });

      describe('should work when returns an observable', () => {
        beforeEach(() => {
          addProviders([{
            provide: 'CanActivate',
            useValue: (a: ActivatedRouteSnapshot, b: RouterStateSnapshot) => { return of (false); }
          }]);
        });


        it('works',
           fakeAsync(inject(
               [Router, TestComponentBuilder, Location],
               (router: Router, tcb: TestComponentBuilder, location: Location) => {
                 const fixture = createRoot(tcb, router, RootCmp);

                 router.resetConfig(
                     [{path: 'team/:id', component: TeamCmp, canActivate: ['CanActivate']}]);

                 router.navigateByUrl('/team/22');
                 advance(fixture);
                 expect(location.path()).toEqual('/');
               })));
      });

      describe('should work when returns a promise', () => {
        beforeEach(() => {
          addProviders([{
            provide: 'CanActivate',
            useValue: (a: ActivatedRouteSnapshot, b: RouterStateSnapshot) => {
              if (a.params['id'] == '22') {
                return Promise.resolve(true);
              } else {
                return Promise.resolve(false);
              }
            }
          }]);
        });


        it('works',
           fakeAsync(inject(
               [Router, TestComponentBuilder, Location],
               (router: Router, tcb: TestComponentBuilder, location: Location) => {
                 const fixture = createRoot(tcb, router, RootCmp);

                 router.resetConfig(
                     [{path: 'team/:id', component: TeamCmp, canActivate: ['CanActivate']}]);

                 router.navigateByUrl('/team/22');
                 advance(fixture);
                 expect(location.path()).toEqual('/team/22');

                 router.navigateByUrl('/team/33');
                 advance(fixture);
                 expect(location.path()).toEqual('/team/22');
               })));
      });
    });

    describe('CanDeactivate', () => {
      describe('should not deactivate a route when CanDeactivate returns false', () => {
        beforeEach(() => {
          addProviders([
            {
              provide: 'CanDeactivateParent',
              useValue: (c: any, a: ActivatedRouteSnapshot, b: RouterStateSnapshot) => {
                return a.params['id'] === '22';
              }
            },
            {
              provide: 'CanDeactivateTeam',
              useValue: (c: any, a: ActivatedRouteSnapshot, b: RouterStateSnapshot) => {
                return c.route.snapshot.params['id'] === '22';
              }
            },
            {
              provide: 'CanDeactivateUser',
              useValue: (c: any, a: ActivatedRouteSnapshot, b: RouterStateSnapshot) => {
                return a.params['name'] === 'victor';
              }
            }
          ]);
        });

        it('works',
           fakeAsync(inject(
               [Router, TestComponentBuilder, Location],
               (router: Router, tcb: TestComponentBuilder, location: Location) => {
                 const fixture = createRoot(tcb, router, RootCmp);

                 router.resetConfig([
                   {path: 'team/:id', component: TeamCmp, canDeactivate: ['CanDeactivateTeam']}
                 ]);

                 router.navigateByUrl('/team/22');
                 advance(fixture);
                 expect(location.path()).toEqual('/team/22');

                 let successStatus: boolean;
                 router.navigateByUrl('/team/33').then(res => successStatus = res);
                 advance(fixture);
                 expect(location.path()).toEqual('/team/33');
                 expect(successStatus).toEqual(true);

                 let canceledStatus: boolean;
                 router.navigateByUrl('/team/44').then(res => canceledStatus = res);
                 advance(fixture);
                 expect(location.path()).toEqual('/team/33');
                 expect(canceledStatus).toEqual(false);
               })));

        it('works (componentless route)',
           fakeAsync(inject(
               [Router, TestComponentBuilder, Location],
               (router: Router, tcb: TestComponentBuilder, location: Location) => {
                 const fixture = createRoot(tcb, router, RootCmp);

                 router.resetConfig([{
                   path: 'parent/:id',
                   canDeactivate: ['CanDeactivateParent'],
                   children: [{path: 'simple', component: SimpleCmp}]
                 }]);

                 router.navigateByUrl('/parent/22/simple');
                 advance(fixture);
                 expect(location.path()).toEqual('/parent/22/simple');

                 router.navigateByUrl('/parent/33/simple');
                 advance(fixture);
                 expect(location.path()).toEqual('/parent/33/simple');

                 router.navigateByUrl('/parent/44/simple');
                 advance(fixture);
                 expect(location.path()).toEqual('/parent/33/simple');
               })));

        it('works with a nested route',
           fakeAsync(inject(
               [Router, TestComponentBuilder, Location],
               (router: Router, tcb: TestComponentBuilder, location: Location) => {
                 const fixture = createRoot(tcb, router, RootCmp);

                 router.resetConfig([{
                   path: 'team/:id',
                   component: TeamCmp,
                   children: [
                     {path: '', pathMatch: 'full', component: SimpleCmp}, {
                       path: 'user/:name',
                       component: UserCmp,
                       canDeactivate: ['CanDeactivateUser']
                     }
                   ]
                 }]);

                 router.navigateByUrl('/team/22/user/victor');
                 advance(fixture);

                 // this works because we can deactivate victor
                 router.navigateByUrl('/team/33');
                 advance(fixture);
                 expect(location.path()).toEqual('/team/33');

                 router.navigateByUrl('/team/33/user/fedor');
                 advance(fixture);

                 // this doesn't work cause we cannot deactivate fedor
                 router.navigateByUrl('/team/44');
                 advance(fixture);
                 expect(location.path()).toEqual('/team/33/user/fedor');
               })));
      });

      describe('should work when given a class', () => {
        class AlwaysTrue implements CanDeactivate<TeamCmp> {
          canDeactivate(
              component: TeamCmp, route: ActivatedRouteSnapshot,
              state: RouterStateSnapshot): boolean {
            return true;
          }
        }

        beforeEach(() => { addProviders([AlwaysTrue]); });

        it('works',
           fakeAsync(inject(
               [Router, TestComponentBuilder, Location],
               (router: Router, tcb: TestComponentBuilder, location: Location) => {
                 const fixture = createRoot(tcb, router, RootCmp);

                 router.resetConfig(
                     [{path: 'team/:id', component: TeamCmp, canDeactivate: [AlwaysTrue]}]);

                 router.navigateByUrl('/team/22');
                 advance(fixture);
                 expect(location.path()).toEqual('/team/22');

                 router.navigateByUrl('/team/33');
                 advance(fixture);
                 expect(location.path()).toEqual('/team/33');
               })));
      });


      describe('should work when returns an observable', () => {
        beforeEach(() => {
          addProviders([{
            provide: 'CanDeactivate',
            useValue: (c: TeamCmp, a: ActivatedRouteSnapshot, b: RouterStateSnapshot) => {
              return of (false);
            }
          }]);
        });

        it('works',
           fakeAsync(inject(
               [Router, TestComponentBuilder, Location],
               (router: Router, tcb: TestComponentBuilder, location: Location) => {
                 const fixture = createRoot(tcb, router, RootCmp);

                 router.resetConfig(
                     [{path: 'team/:id', component: TeamCmp, canDeactivate: ['CanDeactivate']}]);

                 router.navigateByUrl('/team/22');
                 advance(fixture);
                 expect(location.path()).toEqual('/team/22');

                 router.navigateByUrl('/team/33');
                 advance(fixture);
                 expect(location.path()).toEqual('/team/22');
               })));
      });
    });

    describe('CanActivateChild', () => {
      describe('should be invoked when activating a child', () => {
        beforeEach(() => {
          addProviders([{
            provide: 'alwaysFalse',
            useValue: (a: any, b: any) => { return a.params.id === '22'; }
          }]);
        });

        it('works', fakeAsync(inject(
                        [Router, TestComponentBuilder, Location],
                        (router: Router, tcb: TestComponentBuilder, location: Location) => {
                          const fixture = createRoot(tcb, router, RootCmp);

                          router.resetConfig([{
                            path: '',
                            canActivateChild: ['alwaysFalse'],
                            children: [{path: 'team/:id', component: TeamCmp}]
                          }]);

                          router.navigateByUrl('/team/22');
                          advance(fixture);

                          expect(location.path()).toEqual('/team/22');

                          router.navigateByUrl('/team/33').catch(() => {});
                          advance(fixture);

                          expect(location.path()).toEqual('/team/22');
                        })));
      });
    });

    describe('CanLoad', () => {
      describe('should not load children when CanLoad returns false', () => {
        beforeEach(() => {
          addProviders([
            {provide: 'alwaysFalse', useValue: (a: any) => false},
            {provide: 'alwaysTrue', useValue: (a: any) => true}
          ]);
        });

        it('works',
           fakeAsync(inject(
               [Router, TestComponentBuilder, Location, NgModuleFactoryLoader],
               (router: Router, tcb: TestComponentBuilder, location: Location,
                loader: SpyNgModuleFactoryLoader) => {

                 @Component({selector: 'lazy', template: 'lazy-loaded'})
                 class LazyLoadedComponent {
                 }

                 @NgModule({
                   declarations: [LazyLoadedComponent],
                   imports:
                       [RouterModule.forChild([{path: 'loaded', component: LazyLoadedComponent}])],
                   entryComponents: [LazyLoadedComponent]
                 })
                 class LoadedModule {
                 }

                 loader.stubbedModules = {lazyFalse: LoadedModule, lazyTrue: LoadedModule};
                 const fixture = createRoot(tcb, router, RootCmp);

                 router.resetConfig([
                   {path: 'lazyFalse', canLoad: ['alwaysFalse'], loadChildren: 'lazyFalse'},
                   {path: 'lazyTrue', canLoad: ['alwaysTrue'], loadChildren: 'lazyTrue'}
                 ]);

                 const recordedEvents: any[] = [];
                 router.events.forEach(e => recordedEvents.push(e));


                 // failed navigation
                 router.navigateByUrl('/lazyFalse/loaded').catch(s => {});
                 advance(fixture);

                 expect(location.path()).toEqual('/');

                 expectEvents(recordedEvents, [
                   [NavigationStart, '/lazyFalse/loaded'], [NavigationError, '/lazyFalse/loaded']
                 ]);

                 recordedEvents.splice(0);


                 // successful navigation
                 router.navigateByUrl('/lazyTrue/loaded');
                 advance(fixture);

                 expect(location.path()).toEqual('/lazyTrue/loaded');

                 expectEvents(recordedEvents, [
                   [NavigationStart, '/lazyTrue/loaded'], [RoutesRecognized, '/lazyTrue/loaded'],
                   [NavigationEnd, '/lazyTrue/loaded']
                 ]);
               })));
      });
    });
  });

  describe('routerActiveLink', () => {
    it('should set the class when the link is active (a tag)',
       fakeAsync(inject(
           [Router, TestComponentBuilder, Location],
           (router: Router, tcb: TestComponentBuilder, location: Location) => {
             const fixture = createRoot(tcb, router, RootCmp);

             router.resetConfig([{
               path: 'team/:id',
               component: TeamCmp,
               children: [{
                 path: 'link',
                 component: DummyLinkCmp,
                 children:
                     [{path: 'simple', component: SimpleCmp}, {path: '', component: BlankCmp}]
               }]
             }]);

             router.navigateByUrl('/team/22/link;exact=true');
             advance(fixture);
             expect(location.path()).toEqual('/team/22/link;exact=true');

             const nativeLink = fixture.debugElement.nativeElement.querySelector('a');
             const nativeButton = fixture.debugElement.nativeElement.querySelector('button');
             expect(nativeLink.className).toEqual('active');
             expect(nativeButton.className).toEqual('active');

             router.navigateByUrl('/team/22/link/simple');
             advance(fixture);
             expect(location.path()).toEqual('/team/22/link/simple');
             expect(nativeLink.className).toEqual('');
             expect(nativeButton.className).toEqual('');
           })));

    it('should not set the class until the first navigation succeeds',
       fakeAsync(inject(
           [Router, TestComponentBuilder, Location],
           (router: Router, tcb: TestComponentBuilder, location: Location) => {
             @Component({
               template:
                   '<router-outlet></router-outlet><a routerLink="/" routerLinkActive="active" [routerLinkActiveOptions]="{exact: true}" >'
             })
             class RootCmpWithLink {
             }

             const f = tcb.createFakeAsync(RootCmpWithLink);
             advance(f);

             const link = f.debugElement.nativeElement.querySelector('a');
             expect(link.className).toEqual('');

             router.initialNavigation();
             advance(f);

             expect(link.className).toEqual('active');
           })));


    it('should set the class on a parent element when the link is active',
       fakeAsync(inject(
           [Router, TestComponentBuilder, Location],
           (router: Router, tcb: TestComponentBuilder, location: Location) => {
             const fixture = createRoot(tcb, router, RootCmp);

             router.resetConfig([{
               path: 'team/:id',
               component: TeamCmp,
               children: [{
                 path: 'link',
                 component: DummyLinkWithParentCmp,
                 children:
                     [{path: 'simple', component: SimpleCmp}, {path: '', component: BlankCmp}]
               }]
             }]);

             router.navigateByUrl('/team/22/link;exact=true');
             advance(fixture);
             expect(location.path()).toEqual('/team/22/link;exact=true');

             const native = fixture.debugElement.nativeElement.querySelector('link-parent');
             expect(native.className).toEqual('active');

             router.navigateByUrl('/team/22/link/simple');
             advance(fixture);
             expect(location.path()).toEqual('/team/22/link/simple');
             expect(native.className).toEqual('');
           })));

    it('should set the class when the link is active',
       fakeAsync(inject(
           [Router, TestComponentBuilder, Location],
           (router: Router, tcb: TestComponentBuilder, location: Location) => {
             const fixture = createRoot(tcb, router, RootCmp);

             router.resetConfig([{
               path: 'team/:id',
               component: TeamCmp,
               children: [{
                 path: 'link',
                 component: DummyLinkCmp,
                 children:
                     [{path: 'simple', component: SimpleCmp}, {path: '', component: BlankCmp}]
               }]
             }]);

             router.navigateByUrl('/team/22/link');
             advance(fixture);
             expect(location.path()).toEqual('/team/22/link');

             const native = fixture.debugElement.nativeElement.querySelector('a');
             expect(native.className).toEqual('active');

             router.navigateByUrl('/team/22/link/simple');
             advance(fixture);
             expect(location.path()).toEqual('/team/22/link/simple');
             expect(native.className).toEqual('active');
           })));

  });

  describe('lazy loading', () => {
    it('works', fakeAsync(inject(
                    [Router, TestComponentBuilder, Location, NgModuleFactoryLoader],
                    (router: Router, tcb: TestComponentBuilder, location: Location,
                     loader: SpyNgModuleFactoryLoader) => {
                      @Component({
                        selector: 'lazy',
                        template: 'lazy-loaded-parent [<router-outlet></router-outlet>]',
                        directives: ROUTER_DIRECTIVES
                      })
                      class ParentLazyLoadedComponent {
                      }

                      @Component({selector: 'lazy', template: 'lazy-loaded-child'})
                      class ChildLazyLoadedComponent {
                      }

                      @NgModule({
                        declarations: [ParentLazyLoadedComponent, ChildLazyLoadedComponent],
                        imports: [RouterModule.forChild([{
                          path: 'loaded',
                          component: ParentLazyLoadedComponent,
                          children: [{path: 'child', component: ChildLazyLoadedComponent}]
                        }])],
                        entryComponents: [ParentLazyLoadedComponent, ChildLazyLoadedComponent]
                      })
                      class LoadedModule {
                      }


                      loader.stubbedModules = {expected: LoadedModule};

                      const fixture = createRoot(tcb, router, RootCmp);

                      router.resetConfig([{path: 'lazy', loadChildren: 'expected'}]);

                      router.navigateByUrl('/lazy/loaded/child');
                      advance(fixture);

                      expect(location.path()).toEqual('/lazy/loaded/child');
                      expect(fixture.debugElement.nativeElement)
                          .toHaveText('lazy-loaded-parent [lazy-loaded-child]');
                    })));

    it('should combine routes from multiple modules into a single configuration',
       fakeAsync(inject(
           [Router, TestComponentBuilder, Location, NgModuleFactoryLoader],
           (router: Router, tcb: TestComponentBuilder, location: Location,
            loader: SpyNgModuleFactoryLoader) => {
             @Component({selector: 'lazy', template: 'lazy-loaded-2'})
             class LazyComponent2 {
             }

             @NgModule({
               declarations: [LazyComponent2],
               imports: [RouterModule.forChild([{path: 'loaded', component: LazyComponent2}])],
               entryComponents: [LazyComponent2]
             })
             class SiblingOfLoadedModule {
             }

             @Component(
                 {selector: 'lazy', template: 'lazy-loaded-1', directives: ROUTER_DIRECTIVES})
             class LazyComponent1 {
             }

             @NgModule({
               declarations: [LazyComponent1],
               imports: [
                 RouterModule.forChild([{path: 'loaded', component: LazyComponent1}]),
                 SiblingOfLoadedModule
               ],
               entryComponents: [LazyComponent1]
             })
             class LoadedModule {
             }

             loader.stubbedModules = {expected1: LoadedModule, expected2: SiblingOfLoadedModule};

             const fixture = createRoot(tcb, router, RootCmp);

             router.resetConfig([
               {path: 'lazy1', loadChildren: 'expected1'},
               {path: 'lazy2', loadChildren: 'expected2'}
             ]);

             router.navigateByUrl('/lazy1/loaded');
             advance(fixture);
             expect(location.path()).toEqual('/lazy1/loaded');

             router.navigateByUrl('/lazy2/loaded');
             advance(fixture);
             expect(location.path()).toEqual('/lazy2/loaded');
           })));

    it('should use the injector of the lazily-loaded configuration',
       fakeAsync(inject(
           [Router, TestComponentBuilder, Location, NgModuleFactoryLoader],
           (router: Router, tcb: TestComponentBuilder, location: Location,
            loader: SpyNgModuleFactoryLoader) => {
             class LazyLoadedService {}

             @Component({selector: 'lazy', template: 'lazy-loaded', directives: ROUTER_DIRECTIVES})
             class LazyLoadedComponent {
               constructor(service: LazyLoadedService) {}
             }

             @NgModule({
               entryComponents: [LazyLoadedComponent],
               declarations: [LazyLoadedComponent],
               imports: [RouterModule.forChild([{
                 path: '',
                 canActivate: ['alwaysTrue'],
                 children: [{path: 'loaded', component: LazyLoadedComponent}]
               }])],
               providers: [LazyLoadedService, {provide: 'alwaysTrue', useValue: () => true}]
             })
             class LoadedModule {
             }

             loader.stubbedModules = {expected: LoadedModule};

             const fixture = createRoot(tcb, router, RootCmp);

             router.resetConfig([{path: 'lazy', loadChildren: 'expected'}]);

             router.navigateByUrl('/lazy/loaded');
             advance(fixture);

             expect(location.path()).toEqual('/lazy/loaded');
             expect(fixture.debugElement.nativeElement).toHaveText('lazy-loaded');
           })));

    it('error emit an error when cannot load a config',
       fakeAsync(inject(
           [Router, TestComponentBuilder, Location, NgModuleFactoryLoader],
           (router: Router, tcb: TestComponentBuilder, location: Location,
            loader: SpyNgModuleFactoryLoader) => {
             loader.stubbedModules = {};
             const fixture = createRoot(tcb, router, RootCmp);

             router.resetConfig([{path: 'lazy', loadChildren: 'invalid'}]);

             const recordedEvents: any[] = [];
             router.events.forEach(e => recordedEvents.push(e));

             router.navigateByUrl('/lazy/loaded').catch(s => {});
             advance(fixture);

             expect(location.path()).toEqual('/');

             expectEvents(
                 recordedEvents,
                 [[NavigationStart, '/lazy/loaded'], [NavigationError, '/lazy/loaded']]);
           })));
  });
});

function expectEvents(events: Event[], pairs: any[]) {
  for (let i = 0; i < events.length; ++i) {
    expect((<any>events[i].constructor).name).toBe(pairs[i][0].name);
    expect((<any>events[i]).url).toBe(pairs[i][1]);
  }
}

@Component({
  selector: 'link-cmp',
  template: `<a routerLink="/team/33/simple">link</a>`,
  directives: ROUTER_DIRECTIVES
})
class StringLinkCmp {
}

@Component({
  selector: 'link-cmp',
  template: `<button routerLink
="/team/33/simple">link</button>`,
  directives: ROUTER_DIRECTIVES
})
class StringLinkButtonCmp {
}

@Component({
  selector: 'link-cmp',
  template: `<router-outlet></router-outlet><a [routerLink]="['/team/33/simple']">link</a>`,
  directives: ROUTER_DIRECTIVES
})
class AbsoluteLinkCmp {
}

@Component({
  selector: 'link-cmp',
  template:
      `<router-outlet></router-outlet><a routerLinkActive="active" [routerLinkActiveOptions]="{exact: exact}" [routerLink]="['./']">link</a>
<button routerLinkActive="active" [routerLinkActiveOptions]="{exact: exact}" [routerLink]="['./']">button</button>
`,
  directives: ROUTER_DIRECTIVES
})
class DummyLinkCmp {
  private exact: boolean;
  constructor(route: ActivatedRoute) { this.exact = (<any>route.snapshot.params).exact === 'true'; }
}

@Component({
  selector: 'link-cmp',
  template: `<a [routerLink]="['../simple']">link</a>`,
  directives: ROUTER_DIRECTIVES
})
class RelativeLinkCmp {
}

@Component({
  selector: 'link-cmp',
  template: `<a [routerLink]="['../simple']" [queryParams]="{q: '1'}" fragment="f">link</a>`,
  directives: ROUTER_DIRECTIVES
})
class LinkWithQueryParamsAndFragment {
}

@Component({selector: 'simple-cmp', template: `simple`, directives: ROUTER_DIRECTIVES})
class SimpleCmp {
}

@Component(
    {selector: 'collect-params-cmp', template: `collect-params`, directives: ROUTER_DIRECTIVES})
class CollectParamsCmp {
  private params: any = [];
  private urls: any = [];

  constructor(a: ActivatedRoute) {
    a.params.forEach(p => this.params.push(p));
    a.url.forEach(u => this.urls.push(u));
  }

  recordedUrls(): string[] {
    return this.urls.map((a: any) => a.map((p: any) => p.path).join('/'));
  }
}

@Component({selector: 'blank-cmp', template: ``, directives: ROUTER_DIRECTIVES})
class BlankCmp {
}

@Component({
  selector: 'team-cmp',
  template:
      `team {{id | async}} [ <router-outlet></router-outlet>, right: <router-outlet name="right"></router-outlet> ]`,
  directives: ROUTER_DIRECTIVES
})
class TeamCmp {
  id: Observable<string>;
  recordedParams: Params[] = [];

  constructor(public route: ActivatedRoute) {
    this.id = route.params.map(p => p['id']);
    route.params.forEach(_ => this.recordedParams.push(_));
  }
}

@Component(
    {selector: 'user-cmp', template: `user {{name | async}}`, directives: [ROUTER_DIRECTIVES]})
class UserCmp {
  name: Observable<string>;
  recordedParams: Params[] = [];

  constructor(route: ActivatedRoute) {
    this.name = route.params.map(p => p['name']);
    route.params.forEach(_ => this.recordedParams.push(_));
  }
}

@Component({
  selector: 'wrapper',
  template: `<router-outlet></router-outlet>`,
  directives: [ROUTER_DIRECTIVES]
})
class WrapperCmp {
}

@Component({
  selector: 'query-cmp',
  template: `query: {{name | async}} fragment: {{fragment | async}}`,
  directives: [ROUTER_DIRECTIVES]
})
class QueryParamsAndFragmentCmp {
  name: Observable<string>;
  fragment: Observable<string>;

  constructor(router: Router) {
    this.name = router.routerState.queryParams.map(p => p['name']);
    this.fragment = router.routerState.fragment;
  }
}

@Component({selector: 'route-cmp', template: `route`, directives: ROUTER_DIRECTIVES})
class RouteCmp {
  constructor(public route: ActivatedRoute) {}
}

@Component({
  selector: 'link-cmp',
  template:
      `<div *ngIf="show"><a [routerLink]="['./simple']">link</a></div> <router-outlet></router-outlet>`,
  directives: ROUTER_DIRECTIVES,
  entryComponents: [BlankCmp, SimpleCmp]
})
class RelativeLinkInIfCmp {
  show: boolean = false;
}

@Component({
  selector: 'child',
  template: '<div *ngIf="alwaysTrue"><router-outlet></router-outlet></div>',
  directives: ROUTER_DIRECTIVES
})
class LinkInNgIf {
  alwaysTrue = true;
}

@Component({
  selector: 'link-cmp',
  template: `<router-outlet></router-outlet>
                    <link-parent routerLinkActive="active" [routerLinkActiveOptions]="{exact: exact}">
                      <div ngClass="{one: 'true'}"><a [routerLink]="['./']">link</a></div>
                    </link-parent>`,
  directives: ROUTER_DIRECTIVES
})
class DummyLinkWithParentCmp {
  private exact: boolean;
  constructor(route: ActivatedRoute) { this.exact = (<any>route.snapshot.params).exact === 'true'; }
}

@Component({selector: 'cmp', template: ''})
class ComponentRecordingRoutePathAndUrl {
  private path: any;
  private url: any;

  constructor(router: Router, route: ActivatedRoute) {
    this.path = router.routerState.pathFromRoot(route);
    this.url = router.url.toString();
  }
}

@Component({
  selector: 'root-cmp',
  template: `<router-outlet></router-outlet>`,
  directives: [ROUTER_DIRECTIVES],
  entryComponents: [
    BlankCmp, SimpleCmp, TeamCmp, UserCmp, StringLinkCmp, DummyLinkCmp, AbsoluteLinkCmp,
    RelativeLinkCmp, DummyLinkWithParentCmp, LinkWithQueryParamsAndFragment, CollectParamsCmp,
    QueryParamsAndFragmentCmp, StringLinkButtonCmp, WrapperCmp, LinkInNgIf,
    ComponentRecordingRoutePathAndUrl
  ]
})
class RootCmp {
}

@Component({
  selector: 'root-cmp',
  template:
      `primary [<router-outlet></router-outlet>] right [<router-outlet name="right"></router-outlet>]`,
  directives: [ROUTER_DIRECTIVES],
  entryComponents: [BlankCmp, SimpleCmp, RouteCmp, UserCmp]
})
class RootCmpWithTwoOutlets {
}


function advance(fixture: ComponentFixture<any>): void {
  tick();
  fixture.detectChanges();
}

function createRoot(tcb: TestComponentBuilder, router: Router, type: any): ComponentFixture<any> {
  const f = tcb.createFakeAsync(type);
  advance(f);
  router.initialNavigation();
  advance(f);
  return f;
}