128 lines
3.9 KiB
TypeScript
128 lines
3.9 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {CommonModule} from '@angular/common';
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import {Component, ContentChild, NgModule, TemplateRef, Type, ViewChild, ViewContainerRef} from '@angular/core';
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import {ComponentFixture, TestBed, fakeAsync, tick} from '@angular/core/testing';
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import {Router} from '@angular/router';
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import {RouterTestingModule} from '@angular/router/testing';
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describe('Integration', () => {
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describe('routerLinkActive', () => {
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it('should not cause infinite loops in the change detection - #15825', fakeAsync(() => {
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@Component({selector: 'simple', template: 'simple'})
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class SimpleCmp {
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}
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@Component({
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selector: 'some-root',
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template: `
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<div *ngIf="show">
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<ng-container *ngTemplateOutlet="tpl"></ng-container>
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</div>
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<router-outlet></router-outlet>
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<ng-template #tpl>
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<a routerLink="/simple" routerLinkActive="active"></a>
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</ng-template>`
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})
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class MyCmp {
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show: boolean = false;
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}
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@NgModule({
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imports: [CommonModule, RouterTestingModule],
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declarations: [MyCmp, SimpleCmp],
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entryComponents: [SimpleCmp],
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})
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class MyModule {
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}
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TestBed.configureTestingModule({imports: [MyModule]});
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const router: Router = TestBed.get(Router);
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const fixture = createRoot(router, MyCmp);
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router.resetConfig([{path: 'simple', component: SimpleCmp}]);
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router.navigateByUrl('/simple');
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advance(fixture);
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const instance = fixture.componentInstance;
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instance.show = true;
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expect(() => advance(fixture)).not.toThrow();
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}));
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it('should set isActive right after looking at its children -- #18983', fakeAsync(() => {
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@Component({
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template: `
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<div #rla="routerLinkActive" routerLinkActive>
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isActive: {{rla.isActive}}
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<ng-template let-data>
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<a [routerLink]="data">link</a>
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</ng-template>
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<ng-container #container></ng-container>
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</div>
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`
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})
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class ComponentWithRouterLink {
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// TODO(issue/24571): remove '!'.
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@ViewChild(TemplateRef, {static: true}) templateRef !: TemplateRef<any>;
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// TODO(issue/24571): remove '!'.
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@ViewChild('container', {read: ViewContainerRef, static: true})
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container !: ViewContainerRef;
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addLink() {
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this.container.createEmbeddedView(this.templateRef, {$implicit: '/simple'});
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}
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removeLink() { this.container.clear(); }
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}
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@Component({template: 'simple'})
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class SimpleCmp {
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}
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TestBed.configureTestingModule({
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imports: [RouterTestingModule.withRoutes([{path: 'simple', component: SimpleCmp}])],
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declarations: [ComponentWithRouterLink, SimpleCmp]
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});
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const router: Router = TestBed.get(Router);
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const fixture = createRoot(router, ComponentWithRouterLink);
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router.navigateByUrl('/simple');
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advance(fixture);
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fixture.componentInstance.addLink();
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fixture.detectChanges();
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fixture.componentInstance.removeLink();
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advance(fixture);
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advance(fixture);
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expect(fixture.nativeElement.innerHTML).toContain('isActive: false');
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}));
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});
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});
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function advance<T>(fixture: ComponentFixture<T>): void {
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tick();
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fixture.detectChanges();
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}
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function createRoot<T>(router: Router, type: Type<T>): ComponentFixture<T> {
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const f = TestBed.createComponent(type);
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advance(f);
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router.initialNavigation();
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advance(f);
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return f;
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}
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