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

92 lines
2.7 KiB
TypeScript

/**
* @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 {APP_BASE_HREF} from '@angular/common';
import {ApplicationRef, Component, NgModule} from '@angular/core';
import {TestBed, inject} from '@angular/core/testing';
import {DOCUMENT} from '@angular/platform-browser';
import {Router, RouterModule, Routes} from '@angular/router';
@Component({selector: 'app-root', template: ''})
export class AppRootComponent {
}
@Component({selector: 'bootstrappable-component', template: ''})
export class BootstrappableComponent {
}
export const appRoutes: Routes = [{path: '**', redirectTo: ''}];
@NgModule({
imports: [RouterModule.forRoot(appRoutes)],
declarations: [AppRootComponent, BootstrappableComponent],
entryComponents: [AppRootComponent, BootstrappableComponent],
providers: [{provide: APP_BASE_HREF, useValue: '/'}]
})
export class RouterInitTestModule {
}
describe('RouterModule', () => {
describe('RouterInitializer', () => {
beforeEach(() => { TestBed.configureTestingModule({imports: [RouterInitTestModule]}); });
beforeEach(inject([DOCUMENT], function(doc: HTMLDocument) {
const elRootApp = doc.createElement('app-root');
doc.body.appendChild(elRootApp);
const elBootComp = doc.createElement('bootstrappable-component');
doc.body.appendChild(elBootComp);
}));
it('should not init router navigation listeners if a non root component is bootstrapped',
() => {
const appRef: ApplicationRef = TestBed.get(ApplicationRef);
const r: Router = TestBed.get(Router);
const spy = spyOn(r, 'resetRootComponentType').and.callThrough();
appRef.bootstrap(AppRootComponent);
expect(r.resetRootComponentType).toHaveBeenCalled();
spy.calls.reset();
appRef.bootstrap(BootstrappableComponent);
expect(r.resetRootComponentType).not.toHaveBeenCalled();
});
it('should reinit router navigation listeners if a previously bootstrapped root component is destroyed',
(done) => {
const appRef: ApplicationRef = TestBed.get(ApplicationRef);
const r: Router = TestBed.get(Router);
const spy = spyOn(r, 'resetRootComponentType').and.callThrough();
const compRef = appRef.bootstrap(AppRootComponent);
expect(r.resetRootComponentType).toHaveBeenCalled();
spy.calls.reset();
compRef.onDestroy(() => {
appRef.bootstrap(BootstrappableComponent);
expect(r.resetRootComponentType).toHaveBeenCalled();
done();
});
compRef.destroy();
});
});
});