angular-cn/packages/router/test/bootstrap.spec.ts

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/**
* @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, DOCUMENT, Location, ɵgetDOM as getDOM} from '@angular/common';
import {ApplicationRef, CUSTOM_ELEMENTS_SCHEMA, Component, NgModule, destroyPlatform} from '@angular/core';
import {inject} from '@angular/core/testing';
import {BrowserModule} from '@angular/platform-browser';
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {NavigationEnd, Resolve, Router, RouterModule} from '@angular/router';
import {filter, first} from 'rxjs/operators';
describe('bootstrap', () => {
if (isNode) return;
let log: any[] = [];
let testProviders: any[] = null !;
@Component({selector: 'test-app', template: 'root <router-outlet></router-outlet>'})
class RootCmp {
constructor() { log.push('RootCmp'); }
}
@Component({selector: 'test-app2', template: 'root <router-outlet></router-outlet>'})
class SecondRootCmp {
}
class TestResolver implements Resolve<any> {
resolve() {
let resolve: any = null;
const res = new Promise(r => resolve = r);
setTimeout(() => resolve('test-data'), 0);
return res;
}
}
beforeEach(inject([DOCUMENT], (doc: any) => {
destroyPlatform();
const el1 = getDOM().createElement('test-app', doc);
const el2 = getDOM().createElement('test-app2', doc);
getDOM().appendChild(doc.body, el1);
getDOM().appendChild(doc.body, el2);
log = [];
testProviders = [{provide: APP_BASE_HREF, useValue: ''}];
}));
afterEach(inject([DOCUMENT], (doc: any) => {
const oldRoots = getDOM().querySelectorAll(doc, 'test-app,test-app2');
for (let i = 0; i < oldRoots.length; i++) {
getDOM().remove(oldRoots[i]);
}
}));
it('should wait for resolvers to complete when initialNavigation = enabled', (done) => {
@Component({selector: 'test', template: 'test'})
class TestCmpEnabled {
}
@NgModule({
imports: [
BrowserModule, RouterModule.forRoot(
[{path: '**', component: TestCmpEnabled, resolve: {test: TestResolver}}],
{useHash: true, initialNavigation: 'enabled'})
],
declarations: [RootCmp, TestCmpEnabled],
bootstrap: [RootCmp],
providers: [...testProviders, TestResolver],
schemas: [CUSTOM_ELEMENTS_SCHEMA]
})
class TestModule {
constructor(router: Router) {
log.push('TestModule');
router.events.subscribe(e => log.push(e.constructor.name));
}
}
platformBrowserDynamic([]).bootstrapModule(TestModule).then(res => {
const router = res.injector.get(Router);
const data = router.routerState.snapshot.root.firstChild !.data;
expect(data['test']).toEqual('test-data');
expect(log).toEqual([
'TestModule', 'NavigationStart', 'RoutesRecognized', 'GuardsCheckStart',
'ChildActivationStart', 'ActivationStart', 'GuardsCheckEnd', 'ResolveStart', 'ResolveEnd',
'RootCmp', 'ActivationEnd', 'ChildActivationEnd', 'NavigationEnd', 'Scroll'
]);
done();
});
});
it('should NOT wait for resolvers to complete when initialNavigation = legacy_enabled',
(done) => {
@Component({selector: 'test', template: 'test'})
class TestCmpLegacyEnabled {
}
@NgModule({
imports: [
BrowserModule,
RouterModule.forRoot(
[{path: '**', component: TestCmpLegacyEnabled, resolve: {test: TestResolver}}],
{useHash: true, initialNavigation: 'legacy_enabled'})
],
declarations: [RootCmp, TestCmpLegacyEnabled],
bootstrap: [RootCmp],
providers: [...testProviders, TestResolver],
schemas: [CUSTOM_ELEMENTS_SCHEMA]
})
class TestModule {
constructor(router: Router) {
log.push('TestModule');
router.events.subscribe(e => log.push(e.constructor.name));
}
}
platformBrowserDynamic([]).bootstrapModule(TestModule).then(res => {
const router: Router = res.injector.get(Router);
expect(router.routerState.snapshot.root.firstChild).toBeNull();
// ResolveEnd has not been emitted yet because bootstrap returned too early
expect(log).toEqual([
'TestModule', 'RootCmp', 'NavigationStart', 'RoutesRecognized', 'GuardsCheckStart',
'ChildActivationStart', 'ActivationStart', 'GuardsCheckEnd', 'ResolveStart'
]);
router.events.subscribe((e) => {
if (e instanceof NavigationEnd) {
done();
}
});
});
});
it('should not run navigation when initialNavigation = disabled', (done) => {
@Component({selector: 'test', template: 'test'})
class TestCmpDiabled {
}
@NgModule({
imports: [
BrowserModule, RouterModule.forRoot(
[{path: '**', component: TestCmpDiabled, resolve: {test: TestResolver}}],
{useHash: true, initialNavigation: 'disabled'})
],
declarations: [RootCmp, TestCmpDiabled],
bootstrap: [RootCmp],
providers: [...testProviders, TestResolver],
schemas: [CUSTOM_ELEMENTS_SCHEMA]
})
class TestModule {
constructor(router: Router) {
log.push('TestModule');
router.events.subscribe(e => log.push(e.constructor.name));
}
}
platformBrowserDynamic([]).bootstrapModule(TestModule).then(res => {
const router = res.injector.get(Router);
expect(log).toEqual(['TestModule', 'RootCmp']);
done();
});
});
it('should not run navigation when initialNavigation = legacy_disabled', (done) => {
@Component({selector: 'test', template: 'test'})
class TestCmpLegacyDisabled {
}
@NgModule({
imports: [
BrowserModule,
RouterModule.forRoot(
[{path: '**', component: TestCmpLegacyDisabled, resolve: {test: TestResolver}}],
{useHash: true, initialNavigation: 'legacy_disabled'})
],
declarations: [RootCmp, TestCmpLegacyDisabled],
bootstrap: [RootCmp],
providers: [...testProviders, TestResolver],
schemas: [CUSTOM_ELEMENTS_SCHEMA]
})
class TestModule {
constructor(router: Router) {
log.push('TestModule');
router.events.subscribe(e => log.push(e.constructor.name));
}
}
platformBrowserDynamic([]).bootstrapModule(TestModule).then(res => {
const router = res.injector.get(Router);
expect(log).toEqual(['TestModule', 'RootCmp']);
done();
});
});
it('should not init router navigation listeners if a non root component is bootstrapped',
(done) => {
@NgModule({
imports: [BrowserModule, RouterModule.forRoot([], {useHash: true})],
declarations: [SecondRootCmp, RootCmp],
entryComponents: [SecondRootCmp],
bootstrap: [RootCmp],
providers: testProviders,
schemas: [CUSTOM_ELEMENTS_SCHEMA]
})
class TestModule {
}
platformBrowserDynamic([]).bootstrapModule(TestModule).then(res => {
const router = res.injector.get(Router);
spyOn(router as any, 'resetRootComponentType').and.callThrough();
const appRef: ApplicationRef = res.injector.get(ApplicationRef);
appRef.bootstrap(SecondRootCmp);
expect((router as any).resetRootComponentType).not.toHaveBeenCalled();
done();
});
});
it('should reinit router navigation listeners if a previously bootstrapped root component is destroyed',
(done) => {
@NgModule({
imports: [BrowserModule, RouterModule.forRoot([], {useHash: true})],
declarations: [SecondRootCmp, RootCmp],
entryComponents: [SecondRootCmp],
bootstrap: [RootCmp],
providers: testProviders,
schemas: [CUSTOM_ELEMENTS_SCHEMA]
})
class TestModule {
}
platformBrowserDynamic([]).bootstrapModule(TestModule).then(res => {
const router = res.injector.get(Router);
spyOn(router as any, 'resetRootComponentType').and.callThrough();
const appRef: ApplicationRef = res.injector.get(ApplicationRef);
appRef.components[0].onDestroy(() => {
appRef.bootstrap(SecondRootCmp);
expect((router as any).resetRootComponentType).toHaveBeenCalled();
done();
});
appRef.components[0].destroy();
});
});
it('should restore the scrolling position', async(done) => {
@Component({
selector: 'component-a',
template: `
<div style="height: 3000px;"></div>
<div id="marker1"></div>
<div style="height: 3000px;"></div>
<div id="marker2"></div>
<div style="height: 3000px;"></div>
<a name="marker3"></a>
<div style="height: 3000px;"></div>
`
})
class TallComponent {
}
@NgModule({
imports: [
BrowserModule,
RouterModule.forRoot(
[
{path: '', pathMatch: 'full', redirectTo: '/aa'},
{path: 'aa', component: TallComponent}, {path: 'bb', component: TallComponent},
{path: 'cc', component: TallComponent},
{path: 'fail', component: TallComponent, canActivate: ['returnFalse']}
],
{
useHash: true,
scrollPositionRestoration: 'enabled',
anchorScrolling: 'enabled',
scrollOffset: [0, 100],
onSameUrlNavigation: 'reload'
})
],
declarations: [TallComponent, RootCmp],
bootstrap: [RootCmp],
providers: [...testProviders, {provide: 'returnFalse', useValue: () => false}],
schemas: [CUSTOM_ELEMENTS_SCHEMA]
})
class TestModule {
}
const res = await platformBrowserDynamic([]).bootstrapModule(TestModule);
const router = res.injector.get(Router);
const location: Location = res.injector.get(Location);
await router.navigateByUrl('/aa');
window.scrollTo(0, 5000);
await router.navigateByUrl('/fail');
expect(window.scrollY).toEqual(5000);
await router.navigateByUrl('/bb');
window.scrollTo(0, 3000);
expect(window.scrollY).toEqual(3000);
await router.navigateByUrl('/cc');
expect(window.scrollY).toEqual(0);
await router.navigateByUrl('/aa#marker2');
expect(window.scrollY >= 5900).toBe(true);
expect(window.scrollY < 6000).toBe(true); // offset
await router.navigateByUrl('/aa#marker3');
expect(window.scrollY >= 8900).toBe(true);
expect(window.scrollY < 9000).toBe(true);
done();
});
function waitForNavigationToComplete(router: Router): Promise<any> {
return router.events.pipe(filter((e: any) => e instanceof NavigationEnd), first()).toPromise();
}
});